| Conditions | 1600 | 
| Total Lines | 15675 | 
| Code Lines | 4110 | 
| Lines | 2468 | 
| Ratio | 15.74 % | 
| Changes | 0 | ||
Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.
For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.
Commonly applied refactorings include:
If many parameters/temporary variables are present:
Complex classes like lodash.js ➔ runInContext often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
| 1 | /** | ||
| 1406 |   var runInContext = (function runInContext(context) { | ||
| 1407 | context = context == null ? root : _.defaults(root.Object(), context, _.pick(root, contextProps)); | ||
| 1408 | |||
| 1409 | /** Built-in constructor references. */ | ||
| 1410 | var Array = context.Array, | ||
| 1411 | Date = context.Date, | ||
| 1412 | Error = context.Error, | ||
| 1413 | Function = context.Function, | ||
| 1414 | Math = context.Math, | ||
| 1415 | Object = context.Object, | ||
| 1416 | RegExp = context.RegExp, | ||
| 1417 | String = context.String, | ||
| 1418 | TypeError = context.TypeError; | ||
| 1419 | |||
| 1420 | /** Used for built-in method references. */ | ||
| 1421 | var arrayProto = Array.prototype, | ||
| 1422 | funcProto = Function.prototype, | ||
| 1423 | objectProto = Object.prototype; | ||
| 1424 | |||
| 1425 | /** Used to detect overreaching core-js shims. */ | ||
| 1426 | var coreJsData = context['__core-js_shared__']; | ||
| 1427 | |||
| 1428 | /** Used to resolve the decompiled source of functions. */ | ||
| 1429 | var funcToString = funcProto.toString; | ||
| 1430 | |||
| 1431 | /** Used to check objects for own properties. */ | ||
| 1432 | var hasOwnProperty = objectProto.hasOwnProperty; | ||
| 1433 | |||
| 1434 | /** Used to generate unique IDs. */ | ||
| 1435 | var idCounter = 0; | ||
| 1436 | |||
| 1437 | /** Used to detect methods masquerading as native. */ | ||
| 1438 |     var maskSrcKey = (function() { | ||
| 1439 | var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || ''); | ||
| 1440 |       return uid ? ('Symbol(src)_1.' + uid) : ''; | ||
| 1441 | }()); | ||
| 1442 | |||
| 1443 | /** | ||
| 1444 | * Used to resolve the | ||
| 1445 | * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) | ||
| 1446 | * of values. | ||
| 1447 | */ | ||
| 1448 | var nativeObjectToString = objectProto.toString; | ||
| 1449 | |||
| 1450 | /** Used to infer the `Object` constructor. */ | ||
| 1451 | var objectCtorString = funcToString.call(Object); | ||
| 1452 | |||
| 1453 | /** Used to restore the original `_` reference in `_.noConflict`. */ | ||
| 1454 | var oldDash = root._; | ||
| 1455 | |||
| 1456 | /** Used to detect if a method is native. */ | ||
| 1457 |     var reIsNative = RegExp('^' + | ||
| 1458 | funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&') | ||
| 1459 | .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$' | ||
| 1460 | ); | ||
| 1461 | |||
| 1462 | /** Built-in value references. */ | ||
| 1463 | var Buffer = moduleExports ? context.Buffer : undefined, | ||
| 1464 | Symbol = context.Symbol, | ||
| 1465 | Uint8Array = context.Uint8Array, | ||
| 1466 | allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined, | ||
| 1467 | getPrototype = overArg(Object.getPrototypeOf, Object), | ||
| 1468 | objectCreate = Object.create, | ||
| 1469 | propertyIsEnumerable = objectProto.propertyIsEnumerable, | ||
| 1470 | splice = arrayProto.splice, | ||
| 1471 | spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined, | ||
| 1472 | symIterator = Symbol ? Symbol.iterator : undefined, | ||
| 1473 | symToStringTag = Symbol ? Symbol.toStringTag : undefined; | ||
| 1474 | |||
| 1475 |     var defineProperty = (function() { | ||
| 1476 |       try { | ||
| 1477 | var func = getNative(Object, 'defineProperty'); | ||
| 1478 |         func({}, '', {}); | ||
| 1479 | return func; | ||
| 1480 |       } catch (e) {} | ||
| 1481 | }()); | ||
| 1482 | |||
| 1483 | /** Mocked built-ins. */ | ||
| 1484 | var ctxClearTimeout = context.clearTimeout !== root.clearTimeout && context.clearTimeout, | ||
| 1485 | ctxNow = Date && Date.now !== root.Date.now && Date.now, | ||
| 1486 | ctxSetTimeout = context.setTimeout !== root.setTimeout && context.setTimeout; | ||
| 1487 | |||
| 1488 | /* Built-in method references for those with the same name as other `lodash` methods. */ | ||
| 1489 | var nativeCeil = Math.ceil, | ||
| 1490 | nativeFloor = Math.floor, | ||
| 1491 | nativeGetSymbols = Object.getOwnPropertySymbols, | ||
| 1492 | nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined, | ||
| 1493 | nativeIsFinite = context.isFinite, | ||
| 1494 | nativeJoin = arrayProto.join, | ||
| 1495 | nativeKeys = overArg(Object.keys, Object), | ||
| 1496 | nativeMax = Math.max, | ||
| 1497 | nativeMin = Math.min, | ||
| 1498 | nativeNow = Date.now, | ||
| 1499 | nativeParseInt = context.parseInt, | ||
| 1500 | nativeRandom = Math.random, | ||
| 1501 | nativeReverse = arrayProto.reverse; | ||
| 1502 | |||
| 1503 | /* Built-in method references that are verified to be native. */ | ||
| 1504 | var DataView = getNative(context, 'DataView'), | ||
| 1505 | Map = getNative(context, 'Map'), | ||
| 1506 | Promise = getNative(context, 'Promise'), | ||
| 1507 | Set = getNative(context, 'Set'), | ||
| 1508 | WeakMap = getNative(context, 'WeakMap'), | ||
| 1509 | nativeCreate = getNative(Object, 'create'); | ||
| 1510 | |||
| 1511 | /** Used to store function metadata. */ | ||
| 1512 | var metaMap = WeakMap && new WeakMap; | ||
| 1513 | |||
| 1514 | /** Used to lookup unminified function names. */ | ||
| 1515 |     var realNames = {}; | ||
| 1516 | |||
| 1517 | /** Used to detect maps, sets, and weakmaps. */ | ||
| 1518 | var dataViewCtorString = toSource(DataView), | ||
| 1519 | mapCtorString = toSource(Map), | ||
| 1520 | promiseCtorString = toSource(Promise), | ||
| 1521 | setCtorString = toSource(Set), | ||
| 1522 | weakMapCtorString = toSource(WeakMap); | ||
| 1523 | |||
| 1524 | /** Used to convert symbols to primitives and strings. */ | ||
| 1525 | var symbolProto = Symbol ? Symbol.prototype : undefined, | ||
| 1526 | symbolValueOf = symbolProto ? symbolProto.valueOf : undefined, | ||
| 1527 | symbolToString = symbolProto ? symbolProto.toString : undefined; | ||
| 1528 | |||
| 1529 | /*------------------------------------------------------------------------*/ | ||
| 1530 | |||
| 1531 | /** | ||
| 1532 | * Creates a `lodash` object which wraps `value` to enable implicit method | ||
| 1533 | * chain sequences. Methods that operate on and return arrays, collections, | ||
| 1534 | * and functions can be chained together. Methods that retrieve a single value | ||
| 1535 | * or may return a primitive value will automatically end the chain sequence | ||
| 1536 | * and return the unwrapped value. Otherwise, the value must be unwrapped | ||
| 1537 | * with `_#value`. | ||
| 1538 | * | ||
| 1539 | * Explicit chain sequences, which must be unwrapped with `_#value`, may be | ||
| 1540 | * enabled using `_.chain`. | ||
| 1541 | * | ||
| 1542 | * The execution of chained methods is lazy, that is, it's deferred until | ||
| 1543 | * `_#value` is implicitly or explicitly called. | ||
| 1544 | * | ||
| 1545 | * Lazy evaluation allows several methods to support shortcut fusion. | ||
| 1546 | * Shortcut fusion is an optimization to merge iteratee calls; this avoids | ||
| 1547 | * the creation of intermediate arrays and can greatly reduce the number of | ||
| 1548 | * iteratee executions. Sections of a chain sequence qualify for shortcut | ||
| 1549 | * fusion if the section is applied to an array and iteratees accept only | ||
| 1550 | * one argument. The heuristic for whether a section qualifies for shortcut | ||
| 1551 | * fusion is subject to change. | ||
| 1552 | * | ||
| 1553 | * Chaining is supported in custom builds as long as the `_#value` method is | ||
| 1554 | * directly or indirectly included in the build. | ||
| 1555 | * | ||
| 1556 | * In addition to lodash methods, wrappers have `Array` and `String` methods. | ||
| 1557 | * | ||
| 1558 | * The wrapper `Array` methods are: | ||
| 1559 | * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift` | ||
| 1560 | * | ||
| 1561 | * The wrapper `String` methods are: | ||
| 1562 | * `replace` and `split` | ||
| 1563 | * | ||
| 1564 | * The wrapper methods that support shortcut fusion are: | ||
| 1565 | * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`, | ||
| 1566 | * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`, | ||
| 1567 | * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray` | ||
| 1568 | * | ||
| 1569 | * The chainable wrapper methods are: | ||
| 1570 | * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`, | ||
| 1571 | * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`, | ||
| 1572 | * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`, | ||
| 1573 | * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`, | ||
| 1574 | * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`, | ||
| 1575 | * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`, | ||
| 1576 | * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`, | ||
| 1577 | * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`, | ||
| 1578 | * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`, | ||
| 1579 | * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`, | ||
| 1580 | * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`, | ||
| 1581 | * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`, | ||
| 1582 | * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`, | ||
| 1583 | * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`, | ||
| 1584 | * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`, | ||
| 1585 | * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`, | ||
| 1586 | * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`, | ||
| 1587 | * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`, | ||
| 1588 | * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`, | ||
| 1589 | * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`, | ||
| 1590 | * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`, | ||
| 1591 | * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`, | ||
| 1592 | * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`, | ||
| 1593 | * `zipObject`, `zipObjectDeep`, and `zipWith` | ||
| 1594 | * | ||
| 1595 | * The wrapper methods that are **not** chainable by default are: | ||
| 1596 | * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`, | ||
| 1597 | * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`, | ||
| 1598 | * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`, | ||
| 1599 | * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`, | ||
| 1600 | * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`, | ||
| 1601 | * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`, | ||
| 1602 | * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`, | ||
| 1603 | * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`, | ||
| 1604 | * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`, | ||
| 1605 | * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`, | ||
| 1606 | * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`, | ||
| 1607 | * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`, | ||
| 1608 | * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`, | ||
| 1609 | * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`, | ||
| 1610 | * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`, | ||
| 1611 | * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`, | ||
| 1612 | * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`, | ||
| 1613 | * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`, | ||
| 1614 | * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`, | ||
| 1615 | * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`, | ||
| 1616 | * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`, | ||
| 1617 | * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`, | ||
| 1618 | * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`, | ||
| 1619 | * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`, | ||
| 1620 | * `upperFirst`, `value`, and `words` | ||
| 1621 | * | ||
| 1622 | * @name _ | ||
| 1623 | * @constructor | ||
| 1624 | * @category Seq | ||
| 1625 |      * @param {*} value The value to wrap in a `lodash` instance. | ||
| 1626 |      * @returns {Object} Returns the new `lodash` wrapper instance. | ||
| 1627 | * @example | ||
| 1628 | * | ||
| 1629 |      * function square(n) { | ||
| 1630 | * return n * n; | ||
| 1631 | * } | ||
| 1632 | * | ||
| 1633 | * var wrapped = _([1, 2, 3]); | ||
| 1634 | * | ||
| 1635 | * // Returns an unwrapped value. | ||
| 1636 | * wrapped.reduce(_.add); | ||
| 1637 | * // => 6 | ||
| 1638 | * | ||
| 1639 | * // Returns a wrapped value. | ||
| 1640 | * var squares = wrapped.map(square); | ||
| 1641 | * | ||
| 1642 | * _.isArray(squares); | ||
| 1643 | * // => false | ||
| 1644 | * | ||
| 1645 | * _.isArray(squares.value()); | ||
| 1646 | * // => true | ||
| 1647 | */ | ||
| 1648 |     function lodash(value) { | ||
| 1649 |       if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) { | ||
| 1650 |         if (value instanceof LodashWrapper) { | ||
| 1651 | return value; | ||
| 1652 | } | ||
| 1653 |         if (hasOwnProperty.call(value, '__wrapped__')) { | ||
| 1654 | return wrapperClone(value); | ||
| 1655 | } | ||
| 1656 | } | ||
| 1657 | return new LodashWrapper(value); | ||
| 1658 | } | ||
| 1659 | |||
| 1660 | /** | ||
| 1661 | * The base implementation of `_.create` without support for assigning | ||
| 1662 | * properties to the created object. | ||
| 1663 | * | ||
| 1664 | * @private | ||
| 1665 |      * @param {Object} proto The object to inherit from. | ||
| 1666 |      * @returns {Object} Returns the new object. | ||
| 1667 | */ | ||
| 1668 |     var baseCreate = (function() { | ||
| 1669 |       function object() {} | ||
| 1670 |       return function(proto) { | ||
| 1671 |         if (!isObject(proto)) { | ||
| 1672 |           return {}; | ||
| 1673 | } | ||
| 1674 |         if (objectCreate) { | ||
| 1675 | return objectCreate(proto); | ||
| 1676 | } | ||
| 1677 | object.prototype = proto; | ||
| 1678 | var result = new object; | ||
| 1679 | object.prototype = undefined; | ||
| 1680 | return result; | ||
| 1681 | }; | ||
| 1682 | }()); | ||
| 1683 | |||
| 1684 | /** | ||
| 1685 | * The function whose prototype chain sequence wrappers inherit from. | ||
| 1686 | * | ||
| 1687 | * @private | ||
| 1688 | */ | ||
| 1689 |     function baseLodash() { | ||
| 1690 | // No operation performed. | ||
| 1691 | } | ||
| 1692 | |||
| 1693 | /** | ||
| 1694 | * The base constructor for creating `lodash` wrapper objects. | ||
| 1695 | * | ||
| 1696 | * @private | ||
| 1697 |      * @param {*} value The value to wrap. | ||
| 1698 |      * @param {boolean} [chainAll] Enable explicit method chain sequences. | ||
| 1699 | */ | ||
| 1700 |     function LodashWrapper(value, chainAll) { | ||
| 1701 | this.__wrapped__ = value; | ||
| 1702 | this.__actions__ = []; | ||
| 1703 | this.__chain__ = !!chainAll; | ||
| 1704 | this.__index__ = 0; | ||
| 1705 | this.__values__ = undefined; | ||
| 1706 | } | ||
| 1707 | |||
| 1708 | /** | ||
| 1709 | * By default, the template delimiters used by lodash are like those in | ||
| 1710 | * embedded Ruby (ERB) as well as ES2015 template strings. Change the | ||
| 1711 | * following template settings to use alternative delimiters. | ||
| 1712 | * | ||
| 1713 | * @static | ||
| 1714 | * @memberOf _ | ||
| 1715 |      * @type {Object} | ||
| 1716 | */ | ||
| 1717 |     lodash.templateSettings = { | ||
| 1718 | |||
| 1719 | /** | ||
| 1720 | * Used to detect `data` property values to be HTML-escaped. | ||
| 1721 | * | ||
| 1722 | * @memberOf _.templateSettings | ||
| 1723 |        * @type {RegExp} | ||
| 1724 | */ | ||
| 1725 | 'escape': reEscape, | ||
| 1726 | |||
| 1727 | /** | ||
| 1728 | * Used to detect code to be evaluated. | ||
| 1729 | * | ||
| 1730 | * @memberOf _.templateSettings | ||
| 1731 |        * @type {RegExp} | ||
| 1732 | */ | ||
| 1733 | 'evaluate': reEvaluate, | ||
| 1734 | |||
| 1735 | /** | ||
| 1736 | * Used to detect `data` property values to inject. | ||
| 1737 | * | ||
| 1738 | * @memberOf _.templateSettings | ||
| 1739 |        * @type {RegExp} | ||
| 1740 | */ | ||
| 1741 | 'interpolate': reInterpolate, | ||
| 1742 | |||
| 1743 | /** | ||
| 1744 | * Used to reference the data object in the template text. | ||
| 1745 | * | ||
| 1746 | * @memberOf _.templateSettings | ||
| 1747 |        * @type {string} | ||
| 1748 | */ | ||
| 1749 | 'variable': '', | ||
| 1750 | |||
| 1751 | /** | ||
| 1752 | * Used to import variables into the compiled template. | ||
| 1753 | * | ||
| 1754 | * @memberOf _.templateSettings | ||
| 1755 |        * @type {Object} | ||
| 1756 | */ | ||
| 1757 |       'imports': { | ||
| 1758 | |||
| 1759 | /** | ||
| 1760 | * A reference to the `lodash` function. | ||
| 1761 | * | ||
| 1762 | * @memberOf _.templateSettings.imports | ||
| 1763 |          * @type {Function} | ||
| 1764 | */ | ||
| 1765 | '_': lodash | ||
| 1766 | } | ||
| 1767 | }; | ||
| 1768 | |||
| 1769 | // Ensure wrappers are instances of `baseLodash`. | ||
| 1770 | lodash.prototype = baseLodash.prototype; | ||
| 1771 | lodash.prototype.constructor = lodash; | ||
| 1772 | |||
| 1773 | LodashWrapper.prototype = baseCreate(baseLodash.prototype); | ||
| 1774 | LodashWrapper.prototype.constructor = LodashWrapper; | ||
| 1775 | |||
| 1776 | /*------------------------------------------------------------------------*/ | ||
| 1777 | |||
| 1778 | /** | ||
| 1779 | * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation. | ||
| 1780 | * | ||
| 1781 | * @private | ||
| 1782 | * @constructor | ||
| 1783 |      * @param {*} value The value to wrap. | ||
| 1784 | */ | ||
| 1785 |     function LazyWrapper(value) { | ||
| 1786 | this.__wrapped__ = value; | ||
| 1787 | this.__actions__ = []; | ||
| 1788 | this.__dir__ = 1; | ||
| 1789 | this.__filtered__ = false; | ||
| 1790 | this.__iteratees__ = []; | ||
| 1791 | this.__takeCount__ = MAX_ARRAY_LENGTH; | ||
| 1792 | this.__views__ = []; | ||
| 1793 | } | ||
| 1794 | |||
| 1795 | /** | ||
| 1796 | * Creates a clone of the lazy wrapper object. | ||
| 1797 | * | ||
| 1798 | * @private | ||
| 1799 | * @name clone | ||
| 1800 | * @memberOf LazyWrapper | ||
| 1801 |      * @returns {Object} Returns the cloned `LazyWrapper` object. | ||
| 1802 | */ | ||
| 1803 |     function lazyClone() { | ||
| 1804 | var result = new LazyWrapper(this.__wrapped__); | ||
| 1805 | result.__actions__ = copyArray(this.__actions__); | ||
| 1806 | result.__dir__ = this.__dir__; | ||
| 1807 | result.__filtered__ = this.__filtered__; | ||
| 1808 | result.__iteratees__ = copyArray(this.__iteratees__); | ||
| 1809 | result.__takeCount__ = this.__takeCount__; | ||
| 1810 | result.__views__ = copyArray(this.__views__); | ||
| 1811 | return result; | ||
| 1812 | } | ||
| 1813 | |||
| 1814 | /** | ||
| 1815 | * Reverses the direction of lazy iteration. | ||
| 1816 | * | ||
| 1817 | * @private | ||
| 1818 | * @name reverse | ||
| 1819 | * @memberOf LazyWrapper | ||
| 1820 |      * @returns {Object} Returns the new reversed `LazyWrapper` object. | ||
| 1821 | */ | ||
| 1822 |     function lazyReverse() { | ||
| 1823 |       if (this.__filtered__) { | ||
| 1824 | var result = new LazyWrapper(this); | ||
| 1825 | result.__dir__ = -1; | ||
| 1826 | result.__filtered__ = true; | ||
| 1827 |       } else { | ||
| 1828 | result = this.clone(); | ||
| 1829 | result.__dir__ *= -1; | ||
| 1830 | } | ||
| 1831 | return result; | ||
| 1832 | } | ||
| 1833 | |||
| 1834 | /** | ||
| 1835 | * Extracts the unwrapped value from its lazy wrapper. | ||
| 1836 | * | ||
| 1837 | * @private | ||
| 1838 | * @name value | ||
| 1839 | * @memberOf LazyWrapper | ||
| 1840 |      * @returns {*} Returns the unwrapped value. | ||
| 1841 | */ | ||
| 1842 |     function lazyValue() { | ||
| 1843 | var array = this.__wrapped__.value(), | ||
| 1844 | dir = this.__dir__, | ||
| 1845 | isArr = isArray(array), | ||
| 1846 | isRight = dir < 0, | ||
| 1847 | arrLength = isArr ? array.length : 0, | ||
| 1848 | view = getView(0, arrLength, this.__views__), | ||
| 1849 | start = view.start, | ||
| 1850 | end = view.end, | ||
| 1851 | length = end - start, | ||
| 1852 | index = isRight ? end : (start - 1), | ||
| 1853 | iteratees = this.__iteratees__, | ||
| 1854 | iterLength = iteratees.length, | ||
| 1855 | resIndex = 0, | ||
| 1856 | takeCount = nativeMin(length, this.__takeCount__); | ||
| 1857 | |||
| 1858 |       if (!isArr || (!isRight && arrLength == length && takeCount == length)) { | ||
| 1859 | return baseWrapperValue(array, this.__actions__); | ||
| 1860 | } | ||
| 1861 | var result = []; | ||
| 1862 | |||
| 1863 | outer: | ||
| 1864 |       while (length-- && resIndex < takeCount) { | ||
| 1865 | index += dir; | ||
| 1866 | |||
| 1867 | var iterIndex = -1, | ||
| 1868 | value = array[index]; | ||
| 1869 | |||
| 1870 |         while (++iterIndex < iterLength) { | ||
| 1871 | var data = iteratees[iterIndex], | ||
| 1872 | iteratee = data.iteratee, | ||
| 1873 | type = data.type, | ||
| 1874 | computed = iteratee(value); | ||
| 1875 | |||
| 1876 |           if (type == LAZY_MAP_FLAG) { | ||
| 1877 | value = computed; | ||
| 1878 |           } else if (!computed) { | ||
| 1879 |             if (type == LAZY_FILTER_FLAG) { | ||
| 1880 | continue outer; | ||
| 1881 |             } else { | ||
| 1882 | break outer; | ||
| 1883 | } | ||
| 1884 | } | ||
| 1885 | } | ||
| 1886 | result[resIndex++] = value; | ||
| 1887 | } | ||
| 1888 | return result; | ||
| 1889 | } | ||
| 1890 | |||
| 1891 | // Ensure `LazyWrapper` is an instance of `baseLodash`. | ||
| 1892 | LazyWrapper.prototype = baseCreate(baseLodash.prototype); | ||
| 1893 | LazyWrapper.prototype.constructor = LazyWrapper; | ||
| 1894 | |||
| 1895 | /*------------------------------------------------------------------------*/ | ||
| 1896 | |||
| 1897 | /** | ||
| 1898 | * Creates a hash object. | ||
| 1899 | * | ||
| 1900 | * @private | ||
| 1901 | * @constructor | ||
| 1902 |      * @param {Array} [entries] The key-value pairs to cache. | ||
| 1903 | */ | ||
| 1904 |     function Hash(entries) { | ||
| 1905 | var index = -1, | ||
| 1906 | length = entries == null ? 0 : entries.length; | ||
| 1907 | |||
| 1908 | this.clear(); | ||
| 1909 |       while (++index < length) { | ||
| 1910 | var entry = entries[index]; | ||
| 1911 | this.set(entry[0], entry[1]); | ||
| 1912 | } | ||
| 1913 | } | ||
| 1914 | |||
| 1915 | /** | ||
| 1916 | * Removes all key-value entries from the hash. | ||
| 1917 | * | ||
| 1918 | * @private | ||
| 1919 | * @name clear | ||
| 1920 | * @memberOf Hash | ||
| 1921 | */ | ||
| 1922 |     function hashClear() { | ||
| 1923 |       this.__data__ = nativeCreate ? nativeCreate(null) : {}; | ||
| 1924 | this.size = 0; | ||
| 1925 | } | ||
| 1926 | |||
| 1927 | /** | ||
| 1928 | * Removes `key` and its value from the hash. | ||
| 1929 | * | ||
| 1930 | * @private | ||
| 1931 | * @name delete | ||
| 1932 | * @memberOf Hash | ||
| 1933 |      * @param {Object} hash The hash to modify. | ||
| 1934 |      * @param {string} key The key of the value to remove. | ||
| 1935 |      * @returns {boolean} Returns `true` if the entry was removed, else `false`. | ||
| 1936 | */ | ||
| 1937 |     function hashDelete(key) { | ||
| 1938 | var result = this.has(key) && delete this.__data__[key]; | ||
| 1939 | this.size -= result ? 1 : 0; | ||
| 1940 | return result; | ||
| 1941 | } | ||
| 1942 | |||
| 1943 | /** | ||
| 1944 | * Gets the hash value for `key`. | ||
| 1945 | * | ||
| 1946 | * @private | ||
| 1947 | * @name get | ||
| 1948 | * @memberOf Hash | ||
| 1949 |      * @param {string} key The key of the value to get. | ||
| 1950 |      * @returns {*} Returns the entry value. | ||
| 1951 | */ | ||
| 1952 |     function hashGet(key) { | ||
| 1953 | var data = this.__data__; | ||
| 1954 |       if (nativeCreate) { | ||
| 1955 | var result = data[key]; | ||
| 1956 | return result === HASH_UNDEFINED ? undefined : result; | ||
| 1957 | } | ||
| 1958 | return hasOwnProperty.call(data, key) ? data[key] : undefined; | ||
| 1959 | } | ||
| 1960 | |||
| 1961 | /** | ||
| 1962 | * Checks if a hash value for `key` exists. | ||
| 1963 | * | ||
| 1964 | * @private | ||
| 1965 | * @name has | ||
| 1966 | * @memberOf Hash | ||
| 1967 |      * @param {string} key The key of the entry to check. | ||
| 1968 |      * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. | ||
| 1969 | */ | ||
| 1970 |     function hashHas(key) { | ||
| 1971 | var data = this.__data__; | ||
| 1972 | return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key); | ||
| 1973 | } | ||
| 1974 | |||
| 1975 | /** | ||
| 1976 | * Sets the hash `key` to `value`. | ||
| 1977 | * | ||
| 1978 | * @private | ||
| 1979 | * @name set | ||
| 1980 | * @memberOf Hash | ||
| 1981 |      * @param {string} key The key of the value to set. | ||
| 1982 |      * @param {*} value The value to set. | ||
| 1983 |      * @returns {Object} Returns the hash instance. | ||
| 1984 | */ | ||
| 1985 |     function hashSet(key, value) { | ||
| 1986 | var data = this.__data__; | ||
| 1987 | this.size += this.has(key) ? 0 : 1; | ||
| 1988 | data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value; | ||
| 1989 | return this; | ||
| 1990 | } | ||
| 1991 | |||
| 1992 | // Add methods to `Hash`. | ||
| 1993 | Hash.prototype.clear = hashClear; | ||
| 1994 | Hash.prototype['delete'] = hashDelete; | ||
| 1995 | Hash.prototype.get = hashGet; | ||
| 1996 | Hash.prototype.has = hashHas; | ||
| 1997 | Hash.prototype.set = hashSet; | ||
| 1998 | |||
| 1999 | /*------------------------------------------------------------------------*/ | ||
| 2000 | |||
| 2001 | /** | ||
| 2002 | * Creates an list cache object. | ||
| 2003 | * | ||
| 2004 | * @private | ||
| 2005 | * @constructor | ||
| 2006 |      * @param {Array} [entries] The key-value pairs to cache. | ||
| 2007 | */ | ||
| 2008 |     function ListCache(entries) { | ||
| 2009 | var index = -1, | ||
| 2010 | length = entries == null ? 0 : entries.length; | ||
| 2011 | |||
| 2012 | this.clear(); | ||
| 2013 |       while (++index < length) { | ||
| 2014 | var entry = entries[index]; | ||
| 2015 | this.set(entry[0], entry[1]); | ||
| 2016 | } | ||
| 2017 | } | ||
| 2018 | |||
| 2019 | /** | ||
| 2020 | * Removes all key-value entries from the list cache. | ||
| 2021 | * | ||
| 2022 | * @private | ||
| 2023 | * @name clear | ||
| 2024 | * @memberOf ListCache | ||
| 2025 | */ | ||
| 2026 |     function listCacheClear() { | ||
| 2027 | this.__data__ = []; | ||
| 2028 | this.size = 0; | ||
| 2029 | } | ||
| 2030 | |||
| 2031 | /** | ||
| 2032 | * Removes `key` and its value from the list cache. | ||
| 2033 | * | ||
| 2034 | * @private | ||
| 2035 | * @name delete | ||
| 2036 | * @memberOf ListCache | ||
| 2037 |      * @param {string} key The key of the value to remove. | ||
| 2038 |      * @returns {boolean} Returns `true` if the entry was removed, else `false`. | ||
| 2039 | */ | ||
| 2040 |     function listCacheDelete(key) { | ||
| 2041 | var data = this.__data__, | ||
| 2042 | index = assocIndexOf(data, key); | ||
| 2043 | |||
| 2044 |       if (index < 0) { | ||
| 2045 | return false; | ||
| 2046 | } | ||
| 2047 | var lastIndex = data.length - 1; | ||
| 2048 |       if (index == lastIndex) { | ||
| 2049 | data.pop(); | ||
| 2050 |       } else { | ||
| 2051 | splice.call(data, index, 1); | ||
| 2052 | } | ||
| 2053 | --this.size; | ||
| 2054 | return true; | ||
| 2055 | } | ||
| 2056 | |||
| 2057 | /** | ||
| 2058 | * Gets the list cache value for `key`. | ||
| 2059 | * | ||
| 2060 | * @private | ||
| 2061 | * @name get | ||
| 2062 | * @memberOf ListCache | ||
| 2063 |      * @param {string} key The key of the value to get. | ||
| 2064 |      * @returns {*} Returns the entry value. | ||
| 2065 | */ | ||
| 2066 |     function listCacheGet(key) { | ||
| 2067 | var data = this.__data__, | ||
| 2068 | index = assocIndexOf(data, key); | ||
| 2069 | |||
| 2070 | return index < 0 ? undefined : data[index][1]; | ||
| 2071 | } | ||
| 2072 | |||
| 2073 | /** | ||
| 2074 | * Checks if a list cache value for `key` exists. | ||
| 2075 | * | ||
| 2076 | * @private | ||
| 2077 | * @name has | ||
| 2078 | * @memberOf ListCache | ||
| 2079 |      * @param {string} key The key of the entry to check. | ||
| 2080 |      * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. | ||
| 2081 | */ | ||
| 2082 |     function listCacheHas(key) { | ||
| 2083 | return assocIndexOf(this.__data__, key) > -1; | ||
| 2084 | } | ||
| 2085 | |||
| 2086 | /** | ||
| 2087 | * Sets the list cache `key` to `value`. | ||
| 2088 | * | ||
| 2089 | * @private | ||
| 2090 | * @name set | ||
| 2091 | * @memberOf ListCache | ||
| 2092 |      * @param {string} key The key of the value to set. | ||
| 2093 |      * @param {*} value The value to set. | ||
| 2094 |      * @returns {Object} Returns the list cache instance. | ||
| 2095 | */ | ||
| 2096 |     function listCacheSet(key, value) { | ||
| 2097 | var data = this.__data__, | ||
| 2098 | index = assocIndexOf(data, key); | ||
| 2099 | |||
| 2100 |       if (index < 0) { | ||
| 2101 | ++this.size; | ||
| 2102 | data.push([key, value]); | ||
| 2103 |       } else { | ||
| 2104 | data[index][1] = value; | ||
| 2105 | } | ||
| 2106 | return this; | ||
| 2107 | } | ||
| 2108 | |||
| 2109 | // Add methods to `ListCache`. | ||
| 2110 | ListCache.prototype.clear = listCacheClear; | ||
| 2111 | ListCache.prototype['delete'] = listCacheDelete; | ||
| 2112 | ListCache.prototype.get = listCacheGet; | ||
| 2113 | ListCache.prototype.has = listCacheHas; | ||
| 2114 | ListCache.prototype.set = listCacheSet; | ||
| 2115 | |||
| 2116 | /*------------------------------------------------------------------------*/ | ||
| 2117 | |||
| 2118 | /** | ||
| 2119 | * Creates a map cache object to store key-value pairs. | ||
| 2120 | * | ||
| 2121 | * @private | ||
| 2122 | * @constructor | ||
| 2123 |      * @param {Array} [entries] The key-value pairs to cache. | ||
| 2124 | */ | ||
| 2125 |     function MapCache(entries) { | ||
| 2126 | var index = -1, | ||
| 2127 | length = entries == null ? 0 : entries.length; | ||
| 2128 | |||
| 2129 | this.clear(); | ||
| 2130 |       while (++index < length) { | ||
| 2131 | var entry = entries[index]; | ||
| 2132 | this.set(entry[0], entry[1]); | ||
| 2133 | } | ||
| 2134 | } | ||
| 2135 | |||
| 2136 | /** | ||
| 2137 | * Removes all key-value entries from the map. | ||
| 2138 | * | ||
| 2139 | * @private | ||
| 2140 | * @name clear | ||
| 2141 | * @memberOf MapCache | ||
| 2142 | */ | ||
| 2143 |     function mapCacheClear() { | ||
| 2144 | this.size = 0; | ||
| 2145 |       this.__data__ = { | ||
| 2146 | 'hash': new Hash, | ||
| 2147 | 'map': new (Map || ListCache), | ||
| 2148 | 'string': new Hash | ||
| 2149 | }; | ||
| 2150 | } | ||
| 2151 | |||
| 2152 | /** | ||
| 2153 | * Removes `key` and its value from the map. | ||
| 2154 | * | ||
| 2155 | * @private | ||
| 2156 | * @name delete | ||
| 2157 | * @memberOf MapCache | ||
| 2158 |      * @param {string} key The key of the value to remove. | ||
| 2159 |      * @returns {boolean} Returns `true` if the entry was removed, else `false`. | ||
| 2160 | */ | ||
| 2161 |     function mapCacheDelete(key) { | ||
| 2162 | var result = getMapData(this, key)['delete'](key); | ||
| 2163 | this.size -= result ? 1 : 0; | ||
| 2164 | return result; | ||
| 2165 | } | ||
| 2166 | |||
| 2167 | /** | ||
| 2168 | * Gets the map value for `key`. | ||
| 2169 | * | ||
| 2170 | * @private | ||
| 2171 | * @name get | ||
| 2172 | * @memberOf MapCache | ||
| 2173 |      * @param {string} key The key of the value to get. | ||
| 2174 |      * @returns {*} Returns the entry value. | ||
| 2175 | */ | ||
| 2176 |     function mapCacheGet(key) { | ||
| 2177 | return getMapData(this, key).get(key); | ||
| 2178 | } | ||
| 2179 | |||
| 2180 | /** | ||
| 2181 | * Checks if a map value for `key` exists. | ||
| 2182 | * | ||
| 2183 | * @private | ||
| 2184 | * @name has | ||
| 2185 | * @memberOf MapCache | ||
| 2186 |      * @param {string} key The key of the entry to check. | ||
| 2187 |      * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. | ||
| 2188 | */ | ||
| 2189 |     function mapCacheHas(key) { | ||
| 2190 | return getMapData(this, key).has(key); | ||
| 2191 | } | ||
| 2192 | |||
| 2193 | /** | ||
| 2194 | * Sets the map `key` to `value`. | ||
| 2195 | * | ||
| 2196 | * @private | ||
| 2197 | * @name set | ||
| 2198 | * @memberOf MapCache | ||
| 2199 |      * @param {string} key The key of the value to set. | ||
| 2200 |      * @param {*} value The value to set. | ||
| 2201 |      * @returns {Object} Returns the map cache instance. | ||
| 2202 | */ | ||
| 2203 |     function mapCacheSet(key, value) { | ||
| 2204 | var data = getMapData(this, key), | ||
| 2205 | size = data.size; | ||
| 2206 | |||
| 2207 | data.set(key, value); | ||
| 2208 | this.size += data.size == size ? 0 : 1; | ||
| 2209 | return this; | ||
| 2210 | } | ||
| 2211 | |||
| 2212 | // Add methods to `MapCache`. | ||
| 2213 | MapCache.prototype.clear = mapCacheClear; | ||
| 2214 | MapCache.prototype['delete'] = mapCacheDelete; | ||
| 2215 | MapCache.prototype.get = mapCacheGet; | ||
| 2216 | MapCache.prototype.has = mapCacheHas; | ||
| 2217 | MapCache.prototype.set = mapCacheSet; | ||
| 2218 | |||
| 2219 | /*------------------------------------------------------------------------*/ | ||
| 2220 | |||
| 2221 | /** | ||
| 2222 | * | ||
| 2223 | * Creates an array cache object to store unique values. | ||
| 2224 | * | ||
| 2225 | * @private | ||
| 2226 | * @constructor | ||
| 2227 |      * @param {Array} [values] The values to cache. | ||
| 2228 | */ | ||
| 2229 |     function SetCache(values) { | ||
| 2230 | var index = -1, | ||
| 2231 | length = values == null ? 0 : values.length; | ||
| 2232 | |||
| 2233 | this.__data__ = new MapCache; | ||
| 2234 |       while (++index < length) { | ||
| 2235 | this.add(values[index]); | ||
| 2236 | } | ||
| 2237 | } | ||
| 2238 | |||
| 2239 | /** | ||
| 2240 | * Adds `value` to the array cache. | ||
| 2241 | * | ||
| 2242 | * @private | ||
| 2243 | * @name add | ||
| 2244 | * @memberOf SetCache | ||
| 2245 | * @alias push | ||
| 2246 |      * @param {*} value The value to cache. | ||
| 2247 |      * @returns {Object} Returns the cache instance. | ||
| 2248 | */ | ||
| 2249 |     function setCacheAdd(value) { | ||
| 2250 | this.__data__.set(value, HASH_UNDEFINED); | ||
| 2251 | return this; | ||
| 2252 | } | ||
| 2253 | |||
| 2254 | /** | ||
| 2255 | * Checks if `value` is in the array cache. | ||
| 2256 | * | ||
| 2257 | * @private | ||
| 2258 | * @name has | ||
| 2259 | * @memberOf SetCache | ||
| 2260 |      * @param {*} value The value to search for. | ||
| 2261 |      * @returns {number} Returns `true` if `value` is found, else `false`. | ||
| 2262 | */ | ||
| 2263 |     function setCacheHas(value) { | ||
| 2264 | return this.__data__.has(value); | ||
| 2265 | } | ||
| 2266 | |||
| 2267 | // Add methods to `SetCache`. | ||
| 2268 | SetCache.prototype.add = SetCache.prototype.push = setCacheAdd; | ||
| 2269 | SetCache.prototype.has = setCacheHas; | ||
| 2270 | |||
| 2271 | /*------------------------------------------------------------------------*/ | ||
| 2272 | |||
| 2273 | /** | ||
| 2274 | * Creates a stack cache object to store key-value pairs. | ||
| 2275 | * | ||
| 2276 | * @private | ||
| 2277 | * @constructor | ||
| 2278 |      * @param {Array} [entries] The key-value pairs to cache. | ||
| 2279 | */ | ||
| 2280 |     function Stack(entries) { | ||
| 2281 | var data = this.__data__ = new ListCache(entries); | ||
| 2282 | this.size = data.size; | ||
| 2283 | } | ||
| 2284 | |||
| 2285 | /** | ||
| 2286 | * Removes all key-value entries from the stack. | ||
| 2287 | * | ||
| 2288 | * @private | ||
| 2289 | * @name clear | ||
| 2290 | * @memberOf Stack | ||
| 2291 | */ | ||
| 2292 |     function stackClear() { | ||
| 2293 | this.__data__ = new ListCache; | ||
| 2294 | this.size = 0; | ||
| 2295 | } | ||
| 2296 | |||
| 2297 | /** | ||
| 2298 | * Removes `key` and its value from the stack. | ||
| 2299 | * | ||
| 2300 | * @private | ||
| 2301 | * @name delete | ||
| 2302 | * @memberOf Stack | ||
| 2303 |      * @param {string} key The key of the value to remove. | ||
| 2304 |      * @returns {boolean} Returns `true` if the entry was removed, else `false`. | ||
| 2305 | */ | ||
| 2306 |     function stackDelete(key) { | ||
| 2307 | var data = this.__data__, | ||
| 2308 | result = data['delete'](key); | ||
| 2309 | |||
| 2310 | this.size = data.size; | ||
| 2311 | return result; | ||
| 2312 | } | ||
| 2313 | |||
| 2314 | /** | ||
| 2315 | * Gets the stack value for `key`. | ||
| 2316 | * | ||
| 2317 | * @private | ||
| 2318 | * @name get | ||
| 2319 | * @memberOf Stack | ||
| 2320 |      * @param {string} key The key of the value to get. | ||
| 2321 |      * @returns {*} Returns the entry value. | ||
| 2322 | */ | ||
| 2323 |     function stackGet(key) { | ||
| 2324 | return this.__data__.get(key); | ||
| 2325 | } | ||
| 2326 | |||
| 2327 | /** | ||
| 2328 | * Checks if a stack value for `key` exists. | ||
| 2329 | * | ||
| 2330 | * @private | ||
| 2331 | * @name has | ||
| 2332 | * @memberOf Stack | ||
| 2333 |      * @param {string} key The key of the entry to check. | ||
| 2334 |      * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. | ||
| 2335 | */ | ||
| 2336 |     function stackHas(key) { | ||
| 2337 | return this.__data__.has(key); | ||
| 2338 | } | ||
| 2339 | |||
| 2340 | /** | ||
| 2341 | * Sets the stack `key` to `value`. | ||
| 2342 | * | ||
| 2343 | * @private | ||
| 2344 | * @name set | ||
| 2345 | * @memberOf Stack | ||
| 2346 |      * @param {string} key The key of the value to set. | ||
| 2347 |      * @param {*} value The value to set. | ||
| 2348 |      * @returns {Object} Returns the stack cache instance. | ||
| 2349 | */ | ||
| 2350 |     function stackSet(key, value) { | ||
| 2351 | var data = this.__data__; | ||
| 2352 |       if (data instanceof ListCache) { | ||
| 2353 | var pairs = data.__data__; | ||
| 2354 |         if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) { | ||
| 2355 | pairs.push([key, value]); | ||
| 2356 | this.size = ++data.size; | ||
| 2357 | return this; | ||
| 2358 | } | ||
| 2359 | data = this.__data__ = new MapCache(pairs); | ||
| 2360 | } | ||
| 2361 | data.set(key, value); | ||
| 2362 | this.size = data.size; | ||
| 2363 | return this; | ||
| 2364 | } | ||
| 2365 | |||
| 2366 | // Add methods to `Stack`. | ||
| 2367 | Stack.prototype.clear = stackClear; | ||
| 2368 | Stack.prototype['delete'] = stackDelete; | ||
| 2369 | Stack.prototype.get = stackGet; | ||
| 2370 | Stack.prototype.has = stackHas; | ||
| 2371 | Stack.prototype.set = stackSet; | ||
| 2372 | |||
| 2373 | /*------------------------------------------------------------------------*/ | ||
| 2374 | |||
| 2375 | /** | ||
| 2376 | * Creates an array of the enumerable property names of the array-like `value`. | ||
| 2377 | * | ||
| 2378 | * @private | ||
| 2379 |      * @param {*} value The value to query. | ||
| 2380 |      * @param {boolean} inherited Specify returning inherited property names. | ||
| 2381 |      * @returns {Array} Returns the array of property names. | ||
| 2382 | */ | ||
| 2383 |     function arrayLikeKeys(value, inherited) { | ||
| 2384 | var isArr = isArray(value), | ||
| 2385 | isArg = !isArr && isArguments(value), | ||
| 2386 | isBuff = !isArr && !isArg && isBuffer(value), | ||
| 2387 | isType = !isArr && !isArg && !isBuff && isTypedArray(value), | ||
| 2388 | skipIndexes = isArr || isArg || isBuff || isType, | ||
| 2389 | result = skipIndexes ? baseTimes(value.length, String) : [], | ||
| 2390 | length = result.length; | ||
| 2391 | |||
| 2392 |       for (var key in value) { | ||
| 2393 | if ((inherited || hasOwnProperty.call(value, key)) && | ||
| 2394 | !(skipIndexes && ( | ||
| 2395 | // Safari 9 has enumerable `arguments.length` in strict mode. | ||
| 2396 | key == 'length' || | ||
| 2397 | // Node.js 0.10 has enumerable non-index properties on buffers. | ||
| 2398 | (isBuff && (key == 'offset' || key == 'parent')) || | ||
| 2399 | // PhantomJS 2 has enumerable non-index properties on typed arrays. | ||
| 2400 | (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) || | ||
| 2401 | // Skip index properties. | ||
| 2402 | isIndex(key, length) | ||
| 2403 |             ))) { | ||
| 2404 | result.push(key); | ||
| 2405 | } | ||
| 2406 | } | ||
| 2407 | return result; | ||
| 2408 | } | ||
| 2409 | |||
| 2410 | /** | ||
| 2411 | * A specialized version of `_.sample` for arrays. | ||
| 2412 | * | ||
| 2413 | * @private | ||
| 2414 |      * @param {Array} array The array to sample. | ||
| 2415 |      * @returns {*} Returns the random element. | ||
| 2416 | */ | ||
| 2417 |     function arraySample(array) { | ||
| 2418 | var length = array.length; | ||
| 2419 | return length ? array[baseRandom(0, length - 1)] : undefined; | ||
| 2420 | } | ||
| 2421 | |||
| 2422 | /** | ||
| 2423 | * A specialized version of `_.sampleSize` for arrays. | ||
| 2424 | * | ||
| 2425 | * @private | ||
| 2426 |      * @param {Array} array The array to sample. | ||
| 2427 |      * @param {number} n The number of elements to sample. | ||
| 2428 |      * @returns {Array} Returns the random elements. | ||
| 2429 | */ | ||
| 2430 |     function arraySampleSize(array, n) { | ||
| 2431 | return shuffleSelf(copyArray(array), baseClamp(n, 0, array.length)); | ||
| 2432 | } | ||
| 2433 | |||
| 2434 | /** | ||
| 2435 | * A specialized version of `_.shuffle` for arrays. | ||
| 2436 | * | ||
| 2437 | * @private | ||
| 2438 |      * @param {Array} array The array to shuffle. | ||
| 2439 |      * @returns {Array} Returns the new shuffled array. | ||
| 2440 | */ | ||
| 2441 |     function arrayShuffle(array) { | ||
| 2442 | return shuffleSelf(copyArray(array)); | ||
| 2443 | } | ||
| 2444 | |||
| 2445 | /** | ||
| 2446 | * This function is like `assignValue` except that it doesn't assign | ||
| 2447 | * `undefined` values. | ||
| 2448 | * | ||
| 2449 | * @private | ||
| 2450 |      * @param {Object} object The object to modify. | ||
| 2451 |      * @param {string} key The key of the property to assign. | ||
| 2452 |      * @param {*} value The value to assign. | ||
| 2453 | */ | ||
| 2454 |     function assignMergeValue(object, key, value) { | ||
| 2455 | if ((value !== undefined && !eq(object[key], value)) || | ||
| 2456 |           (value === undefined && !(key in object))) { | ||
| 2457 | baseAssignValue(object, key, value); | ||
| 2458 | } | ||
| 2459 | } | ||
| 2460 | |||
| 2461 | /** | ||
| 2462 | * Assigns `value` to `key` of `object` if the existing value is not equivalent | ||
| 2463 | * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) | ||
| 2464 | * for equality comparisons. | ||
| 2465 | * | ||
| 2466 | * @private | ||
| 2467 |      * @param {Object} object The object to modify. | ||
| 2468 |      * @param {string} key The key of the property to assign. | ||
| 2469 |      * @param {*} value The value to assign. | ||
| 2470 | */ | ||
| 2471 |     function assignValue(object, key, value) { | ||
| 2472 | var objValue = object[key]; | ||
| 2473 | if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) || | ||
| 2474 |           (value === undefined && !(key in object))) { | ||
| 2475 | baseAssignValue(object, key, value); | ||
| 2476 | } | ||
| 2477 | } | ||
| 2478 | |||
| 2479 | /** | ||
| 2480 | * Gets the index at which the `key` is found in `array` of key-value pairs. | ||
| 2481 | * | ||
| 2482 | * @private | ||
| 2483 |      * @param {Array} array The array to inspect. | ||
| 2484 |      * @param {*} key The key to search for. | ||
| 2485 |      * @returns {number} Returns the index of the matched value, else `-1`. | ||
| 2486 | */ | ||
| 2487 |     function assocIndexOf(array, key) { | ||
| 2488 | var length = array.length; | ||
| 2489 |       while (length--) { | ||
| 2490 |         if (eq(array[length][0], key)) { | ||
| 2491 | return length; | ||
| 2492 | } | ||
| 2493 | } | ||
| 2494 | return -1; | ||
| 2495 | } | ||
| 2496 | |||
| 2497 | /** | ||
| 2498 | * Aggregates elements of `collection` on `accumulator` with keys transformed | ||
| 2499 | * by `iteratee` and values set by `setter`. | ||
| 2500 | * | ||
| 2501 | * @private | ||
| 2502 |      * @param {Array|Object} collection The collection to iterate over. | ||
| 2503 |      * @param {Function} setter The function to set `accumulator` values. | ||
| 2504 |      * @param {Function} iteratee The iteratee to transform keys. | ||
| 2505 |      * @param {Object} accumulator The initial aggregated object. | ||
| 2506 |      * @returns {Function} Returns `accumulator`. | ||
| 2507 | */ | ||
| 2508 |     function baseAggregator(collection, setter, iteratee, accumulator) { | ||
| 2509 |       baseEach(collection, function(value, key, collection) { | ||
| 2510 | setter(accumulator, value, iteratee(value), collection); | ||
| 2511 | }); | ||
| 2512 | return accumulator; | ||
| 2513 | } | ||
| 2514 | |||
| 2515 | /** | ||
| 2516 | * The base implementation of `_.assign` without support for multiple sources | ||
| 2517 | * or `customizer` functions. | ||
| 2518 | * | ||
| 2519 | * @private | ||
| 2520 |      * @param {Object} object The destination object. | ||
| 2521 |      * @param {Object} source The source object. | ||
| 2522 |      * @returns {Object} Returns `object`. | ||
| 2523 | */ | ||
| 2524 |     function baseAssign(object, source) { | ||
| 2525 | return object && copyObject(source, keys(source), object); | ||
| 2526 | } | ||
| 2527 | |||
| 2528 | /** | ||
| 2529 | * The base implementation of `_.assignIn` without support for multiple sources | ||
| 2530 | * or `customizer` functions. | ||
| 2531 | * | ||
| 2532 | * @private | ||
| 2533 |      * @param {Object} object The destination object. | ||
| 2534 |      * @param {Object} source The source object. | ||
| 2535 |      * @returns {Object} Returns `object`. | ||
| 2536 | */ | ||
| 2537 |     function baseAssignIn(object, source) { | ||
| 2538 | return object && copyObject(source, keysIn(source), object); | ||
| 2539 | } | ||
| 2540 | |||
| 2541 | /** | ||
| 2542 | * The base implementation of `assignValue` and `assignMergeValue` without | ||
| 2543 | * value checks. | ||
| 2544 | * | ||
| 2545 | * @private | ||
| 2546 |      * @param {Object} object The object to modify. | ||
| 2547 |      * @param {string} key The key of the property to assign. | ||
| 2548 |      * @param {*} value The value to assign. | ||
| 2549 | */ | ||
| 2550 |     function baseAssignValue(object, key, value) { | ||
| 2551 |       if (key == '__proto__' && defineProperty) { | ||
| 2552 |         defineProperty(object, key, { | ||
| 2553 | 'configurable': true, | ||
| 2554 | 'enumerable': true, | ||
| 2555 | 'value': value, | ||
| 2556 | 'writable': true | ||
| 2557 | }); | ||
| 2558 |       } else { | ||
| 2559 | object[key] = value; | ||
| 2560 | } | ||
| 2561 | } | ||
| 2562 | |||
| 2563 | /** | ||
| 2564 | * The base implementation of `_.at` without support for individual paths. | ||
| 2565 | * | ||
| 2566 | * @private | ||
| 2567 |      * @param {Object} object The object to iterate over. | ||
| 2568 |      * @param {string[]} paths The property paths to pick. | ||
| 2569 |      * @returns {Array} Returns the picked elements. | ||
| 2570 | */ | ||
| 2571 |     function baseAt(object, paths) { | ||
| 2572 | var index = -1, | ||
| 2573 | length = paths.length, | ||
| 2574 | result = Array(length), | ||
| 2575 | skip = object == null; | ||
| 2576 | |||
| 2577 |       while (++index < length) { | ||
| 2578 | result[index] = skip ? undefined : get(object, paths[index]); | ||
| 2579 | } | ||
| 2580 | return result; | ||
| 2581 | } | ||
| 2582 | |||
| 2583 | /** | ||
| 2584 | * The base implementation of `_.clamp` which doesn't coerce arguments. | ||
| 2585 | * | ||
| 2586 | * @private | ||
| 2587 |      * @param {number} number The number to clamp. | ||
| 2588 |      * @param {number} [lower] The lower bound. | ||
| 2589 |      * @param {number} upper The upper bound. | ||
| 2590 |      * @returns {number} Returns the clamped number. | ||
| 2591 | */ | ||
| 2592 |     function baseClamp(number, lower, upper) { | ||
| 2593 |       if (number === number) { | ||
| 2594 |         if (upper !== undefined) { | ||
| 2595 | number = number <= upper ? number : upper; | ||
| 2596 | } | ||
| 2597 |         if (lower !== undefined) { | ||
| 2598 | number = number >= lower ? number : lower; | ||
| 2599 | } | ||
| 2600 | } | ||
| 2601 | return number; | ||
| 2602 | } | ||
| 2603 | |||
| 2604 | /** | ||
| 2605 | * The base implementation of `_.clone` and `_.cloneDeep` which tracks | ||
| 2606 | * traversed objects. | ||
| 2607 | * | ||
| 2608 | * @private | ||
| 2609 |      * @param {*} value The value to clone. | ||
| 2610 |      * @param {boolean} bitmask The bitmask flags. | ||
| 2611 | * 1 - Deep clone | ||
| 2612 | * 2 - Flatten inherited properties | ||
| 2613 | * 4 - Clone symbols | ||
| 2614 |      * @param {Function} [customizer] The function to customize cloning. | ||
| 2615 |      * @param {string} [key] The key of `value`. | ||
| 2616 |      * @param {Object} [object] The parent object of `value`. | ||
| 2617 |      * @param {Object} [stack] Tracks traversed objects and their clone counterparts. | ||
| 2618 |      * @returns {*} Returns the cloned value. | ||
| 2619 | */ | ||
| 2620 |     function baseClone(value, bitmask, customizer, key, object, stack) { | ||
| 2621 | var result, | ||
| 2622 | isDeep = bitmask & CLONE_DEEP_FLAG, | ||
| 2623 | isFlat = bitmask & CLONE_FLAT_FLAG, | ||
| 2624 | isFull = bitmask & CLONE_SYMBOLS_FLAG; | ||
| 2625 | |||
| 2626 |       if (customizer) { | ||
| 2627 | result = object ? customizer(value, key, object, stack) : customizer(value); | ||
| 2628 | } | ||
| 2629 |       if (result !== undefined) { | ||
| 2630 | return result; | ||
| 2631 | } | ||
| 2632 |       if (!isObject(value)) { | ||
| 2633 | return value; | ||
| 2634 | } | ||
| 2635 | var isArr = isArray(value); | ||
| 2636 |       if (isArr) { | ||
| 2637 | result = initCloneArray(value); | ||
| 2638 |         if (!isDeep) { | ||
| 2639 | return copyArray(value, result); | ||
| 2640 | } | ||
| 2641 |       } else { | ||
| 2642 | var tag = getTag(value), | ||
| 2643 | isFunc = tag == funcTag || tag == genTag; | ||
| 2644 | |||
| 2645 |         if (isBuffer(value)) { | ||
| 2646 | return cloneBuffer(value, isDeep); | ||
| 2647 | } | ||
| 2648 |         if (tag == objectTag || tag == argsTag || (isFunc && !object)) { | ||
| 2649 |           result = (isFlat || isFunc) ? {} : initCloneObject(value); | ||
| 2650 |           if (!isDeep) { | ||
| 2651 | return isFlat | ||
| 2652 | ? copySymbolsIn(value, baseAssignIn(result, value)) | ||
| 2653 | : copySymbols(value, baseAssign(result, value)); | ||
| 2654 | } | ||
| 2655 |         } else { | ||
| 2656 |           if (!cloneableTags[tag]) { | ||
| 2657 |             return object ? value : {}; | ||
| 2658 | } | ||
| 2659 | result = initCloneByTag(value, tag, isDeep); | ||
| 2660 | } | ||
| 2661 | } | ||
| 2662 | // Check for circular references and return its corresponding clone. | ||
| 2663 | stack || (stack = new Stack); | ||
| 2664 | var stacked = stack.get(value); | ||
| 2665 |       if (stacked) { | ||
| 2666 | return stacked; | ||
| 2667 | } | ||
| 2668 | stack.set(value, result); | ||
| 2669 | |||
| 2670 |       if (isSet(value)) { | ||
| 2671 |         value.forEach(function(subValue) { | ||
| 2672 | result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack)); | ||
| 2673 | }); | ||
| 2674 |       } else if (isMap(value)) { | ||
| 2675 |         value.forEach(function(subValue, key) { | ||
| 2676 | result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack)); | ||
| 2677 | }); | ||
| 2678 | } | ||
| 2679 | |||
| 2680 | var keysFunc = isFull | ||
| 2681 | ? (isFlat ? getAllKeysIn : getAllKeys) | ||
| 2682 | : (isFlat ? keysIn : keys); | ||
| 2683 | |||
| 2684 | var props = isArr ? undefined : keysFunc(value); | ||
| 2685 |       arrayEach(props || value, function(subValue, key) { | ||
| 2686 |         if (props) { | ||
| 2687 | key = subValue; | ||
| 2688 | subValue = value[key]; | ||
| 2689 | } | ||
| 2690 | // Recursively populate clone (susceptible to call stack limits). | ||
| 2691 | assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack)); | ||
| 2692 | }); | ||
| 2693 | return result; | ||
| 2694 | } | ||
| 2695 | |||
| 2696 | /** | ||
| 2697 | * The base implementation of `_.conforms` which doesn't clone `source`. | ||
| 2698 | * | ||
| 2699 | * @private | ||
| 2700 |      * @param {Object} source The object of property predicates to conform to. | ||
| 2701 |      * @returns {Function} Returns the new spec function. | ||
| 2702 | */ | ||
| 2703 |     function baseConforms(source) { | ||
| 2704 | var props = keys(source); | ||
| 2705 |       return function(object) { | ||
| 2706 | return baseConformsTo(object, source, props); | ||
| 2707 | }; | ||
| 2708 | } | ||
| 2709 | |||
| 2710 | /** | ||
| 2711 | * The base implementation of `_.conformsTo` which accepts `props` to check. | ||
| 2712 | * | ||
| 2713 | * @private | ||
| 2714 |      * @param {Object} object The object to inspect. | ||
| 2715 |      * @param {Object} source The object of property predicates to conform to. | ||
| 2716 |      * @returns {boolean} Returns `true` if `object` conforms, else `false`. | ||
| 2717 | */ | ||
| 2718 |     function baseConformsTo(object, source, props) { | ||
| 2719 | var length = props.length; | ||
| 2720 |       if (object == null) { | ||
| 2721 | return !length; | ||
| 2722 | } | ||
| 2723 | object = Object(object); | ||
| 2724 |       while (length--) { | ||
| 2725 | var key = props[length], | ||
| 2726 | predicate = source[key], | ||
| 2727 | value = object[key]; | ||
| 2728 | |||
| 2729 |         if ((value === undefined && !(key in object)) || !predicate(value)) { | ||
| 2730 | return false; | ||
| 2731 | } | ||
| 2732 | } | ||
| 2733 | return true; | ||
| 2734 | } | ||
| 2735 | |||
| 2736 | /** | ||
| 2737 | * The base implementation of `_.delay` and `_.defer` which accepts `args` | ||
| 2738 | * to provide to `func`. | ||
| 2739 | * | ||
| 2740 | * @private | ||
| 2741 |      * @param {Function} func The function to delay. | ||
| 2742 |      * @param {number} wait The number of milliseconds to delay invocation. | ||
| 2743 |      * @param {Array} args The arguments to provide to `func`. | ||
| 2744 |      * @returns {number|Object} Returns the timer id or timeout object. | ||
| 2745 | */ | ||
| 2746 |     function baseDelay(func, wait, args) { | ||
| 2747 |       if (typeof func != 'function') { | ||
| 2748 | throw new TypeError(FUNC_ERROR_TEXT); | ||
| 2749 | } | ||
| 2750 |       return setTimeout(function() { func.apply(undefined, args); }, wait); | ||
| 2751 | } | ||
| 2752 | |||
| 2753 | /** | ||
| 2754 | * The base implementation of methods like `_.difference` without support | ||
| 2755 | * for excluding multiple arrays or iteratee shorthands. | ||
| 2756 | * | ||
| 2757 | * @private | ||
| 2758 |      * @param {Array} array The array to inspect. | ||
| 2759 |      * @param {Array} values The values to exclude. | ||
| 2760 |      * @param {Function} [iteratee] The iteratee invoked per element. | ||
| 2761 |      * @param {Function} [comparator] The comparator invoked per element. | ||
| 2762 |      * @returns {Array} Returns the new array of filtered values. | ||
| 2763 | */ | ||
| 2764 |     function baseDifference(array, values, iteratee, comparator) { | ||
| 2765 | var index = -1, | ||
| 2766 | includes = arrayIncludes, | ||
| 2767 | isCommon = true, | ||
| 2768 | length = array.length, | ||
| 2769 | result = [], | ||
| 2770 | valuesLength = values.length; | ||
| 2771 | |||
| 2772 |       if (!length) { | ||
| 2773 | return result; | ||
| 2774 | } | ||
| 2775 |       if (iteratee) { | ||
| 2776 | values = arrayMap(values, baseUnary(iteratee)); | ||
| 2777 | } | ||
| 2778 |       if (comparator) { | ||
| 2779 | includes = arrayIncludesWith; | ||
| 2780 | isCommon = false; | ||
| 2781 | } | ||
| 2782 |       else if (values.length >= LARGE_ARRAY_SIZE) { | ||
| 2783 | includes = cacheHas; | ||
| 2784 | isCommon = false; | ||
| 2785 | values = new SetCache(values); | ||
| 2786 | } | ||
| 2787 | outer: | ||
| 2788 |       while (++index < length) { | ||
| 2789 | var value = array[index], | ||
| 2790 | computed = iteratee == null ? value : iteratee(value); | ||
| 2791 | |||
| 2792 | value = (comparator || value !== 0) ? value : 0; | ||
| 2793 |         if (isCommon && computed === computed) { | ||
| 2794 | var valuesIndex = valuesLength; | ||
| 2795 |           while (valuesIndex--) { | ||
| 2796 |             if (values[valuesIndex] === computed) { | ||
| 2797 | continue outer; | ||
| 2798 | } | ||
| 2799 | } | ||
| 2800 | result.push(value); | ||
| 2801 | } | ||
| 2802 |         else if (!includes(values, computed, comparator)) { | ||
| 2803 | result.push(value); | ||
| 2804 | } | ||
| 2805 | } | ||
| 2806 | return result; | ||
| 2807 | } | ||
| 2808 | |||
| 2809 | /** | ||
| 2810 | * The base implementation of `_.forEach` without support for iteratee shorthands. | ||
| 2811 | * | ||
| 2812 | * @private | ||
| 2813 |      * @param {Array|Object} collection The collection to iterate over. | ||
| 2814 |      * @param {Function} iteratee The function invoked per iteration. | ||
| 2815 |      * @returns {Array|Object} Returns `collection`. | ||
| 2816 | */ | ||
| 2817 | var baseEach = createBaseEach(baseForOwn); | ||
| 2818 | |||
| 2819 | /** | ||
| 2820 | * The base implementation of `_.forEachRight` without support for iteratee shorthands. | ||
| 2821 | * | ||
| 2822 | * @private | ||
| 2823 |      * @param {Array|Object} collection The collection to iterate over. | ||
| 2824 |      * @param {Function} iteratee The function invoked per iteration. | ||
| 2825 |      * @returns {Array|Object} Returns `collection`. | ||
| 2826 | */ | ||
| 2827 | var baseEachRight = createBaseEach(baseForOwnRight, true); | ||
| 2828 | |||
| 2829 | /** | ||
| 2830 | * The base implementation of `_.every` without support for iteratee shorthands. | ||
| 2831 | * | ||
| 2832 | * @private | ||
| 2833 |      * @param {Array|Object} collection The collection to iterate over. | ||
| 2834 |      * @param {Function} predicate The function invoked per iteration. | ||
| 2835 |      * @returns {boolean} Returns `true` if all elements pass the predicate check, | ||
| 2836 | * else `false` | ||
| 2837 | */ | ||
| 2838 |     function baseEvery(collection, predicate) { | ||
| 2839 | var result = true; | ||
| 2840 |       baseEach(collection, function(value, index, collection) { | ||
| 2841 | result = !!predicate(value, index, collection); | ||
| 2842 | return result; | ||
| 2843 | }); | ||
| 2844 | return result; | ||
| 2845 | } | ||
| 2846 | |||
| 2847 | /** | ||
| 2848 | * The base implementation of methods like `_.max` and `_.min` which accepts a | ||
| 2849 | * `comparator` to determine the extremum value. | ||
| 2850 | * | ||
| 2851 | * @private | ||
| 2852 |      * @param {Array} array The array to iterate over. | ||
| 2853 |      * @param {Function} iteratee The iteratee invoked per iteration. | ||
| 2854 |      * @param {Function} comparator The comparator used to compare values. | ||
| 2855 |      * @returns {*} Returns the extremum value. | ||
| 2856 | */ | ||
| 2857 |     function baseExtremum(array, iteratee, comparator) { | ||
| 2858 | var index = -1, | ||
| 2859 | length = array.length; | ||
| 2860 | |||
| 2861 |       while (++index < length) { | ||
| 2862 | var value = array[index], | ||
| 2863 | current = iteratee(value); | ||
| 2864 | |||
| 2865 | if (current != null && (computed === undefined | ||
| 2866 | ? (current === current && !isSymbol(current)) | ||
| 2867 | : comparator(current, computed) | ||
| 2868 |             )) { | ||
| 2869 | var computed = current, | ||
| 2870 | result = value; | ||
| 2871 | } | ||
| 2872 | } | ||
| 2873 | return result; | ||
| 2874 | } | ||
| 2875 | |||
| 2876 | /** | ||
| 2877 | * The base implementation of `_.fill` without an iteratee call guard. | ||
| 2878 | * | ||
| 2879 | * @private | ||
| 2880 |      * @param {Array} array The array to fill. | ||
| 2881 |      * @param {*} value The value to fill `array` with. | ||
| 2882 |      * @param {number} [start=0] The start position. | ||
| 2883 |      * @param {number} [end=array.length] The end position. | ||
| 2884 |      * @returns {Array} Returns `array`. | ||
| 2885 | */ | ||
| 2886 |     function baseFill(array, value, start, end) { | ||
| 2887 | var length = array.length; | ||
| 2888 | |||
| 2889 | start = toInteger(start); | ||
| 2890 |       if (start < 0) { | ||
| 2891 | start = -start > length ? 0 : (length + start); | ||
| 2892 | } | ||
| 2893 | end = (end === undefined || end > length) ? length : toInteger(end); | ||
| 2894 |       if (end < 0) { | ||
| 2895 | end += length; | ||
| 2896 | } | ||
| 2897 | end = start > end ? 0 : toLength(end); | ||
| 2898 |       while (start < end) { | ||
| 2899 | array[start++] = value; | ||
| 2900 | } | ||
| 2901 | return array; | ||
| 2902 | } | ||
| 2903 | |||
| 2904 | /** | ||
| 2905 | * The base implementation of `_.filter` without support for iteratee shorthands. | ||
| 2906 | * | ||
| 2907 | * @private | ||
| 2908 |      * @param {Array|Object} collection The collection to iterate over. | ||
| 2909 |      * @param {Function} predicate The function invoked per iteration. | ||
| 2910 |      * @returns {Array} Returns the new filtered array. | ||
| 2911 | */ | ||
| 2912 |     function baseFilter(collection, predicate) { | ||
| 2913 | var result = []; | ||
| 2914 |       baseEach(collection, function(value, index, collection) { | ||
| 2915 |         if (predicate(value, index, collection)) { | ||
| 2916 | result.push(value); | ||
| 2917 | } | ||
| 2918 | }); | ||
| 2919 | return result; | ||
| 2920 | } | ||
| 2921 | |||
| 2922 | /** | ||
| 2923 | * The base implementation of `_.flatten` with support for restricting flattening. | ||
| 2924 | * | ||
| 2925 | * @private | ||
| 2926 |      * @param {Array} array The array to flatten. | ||
| 2927 |      * @param {number} depth The maximum recursion depth. | ||
| 2928 |      * @param {boolean} [predicate=isFlattenable] The function invoked per iteration. | ||
| 2929 |      * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks. | ||
| 2930 |      * @param {Array} [result=[]] The initial result value. | ||
| 2931 |      * @returns {Array} Returns the new flattened array. | ||
| 2932 | */ | ||
| 2933 |     function baseFlatten(array, depth, predicate, isStrict, result) { | ||
| 2934 | var index = -1, | ||
| 2935 | length = array.length; | ||
| 2936 | |||
| 2937 | predicate || (predicate = isFlattenable); | ||
| 2938 | result || (result = []); | ||
| 2939 | |||
| 2940 |       while (++index < length) { | ||
| 2941 | var value = array[index]; | ||
| 2942 |         if (depth > 0 && predicate(value)) { | ||
| 2943 |           if (depth > 1) { | ||
| 2944 | // Recursively flatten arrays (susceptible to call stack limits). | ||
| 2945 | baseFlatten(value, depth - 1, predicate, isStrict, result); | ||
| 2946 |           } else { | ||
| 2947 | arrayPush(result, value); | ||
| 2948 | } | ||
| 2949 |         } else if (!isStrict) { | ||
| 2950 | result[result.length] = value; | ||
| 2951 | } | ||
| 2952 | } | ||
| 2953 | return result; | ||
| 2954 | } | ||
| 2955 | |||
| 2956 | /** | ||
| 2957 | * The base implementation of `baseForOwn` which iterates over `object` | ||
| 2958 | * properties returned by `keysFunc` and invokes `iteratee` for each property. | ||
| 2959 | * Iteratee functions may exit iteration early by explicitly returning `false`. | ||
| 2960 | * | ||
| 2961 | * @private | ||
| 2962 |      * @param {Object} object The object to iterate over. | ||
| 2963 |      * @param {Function} iteratee The function invoked per iteration. | ||
| 2964 |      * @param {Function} keysFunc The function to get the keys of `object`. | ||
| 2965 |      * @returns {Object} Returns `object`. | ||
| 2966 | */ | ||
| 2967 | var baseFor = createBaseFor(); | ||
| 2968 | |||
| 2969 | /** | ||
| 2970 | * This function is like `baseFor` except that it iterates over properties | ||
| 2971 | * in the opposite order. | ||
| 2972 | * | ||
| 2973 | * @private | ||
| 2974 |      * @param {Object} object The object to iterate over. | ||
| 2975 |      * @param {Function} iteratee The function invoked per iteration. | ||
| 2976 |      * @param {Function} keysFunc The function to get the keys of `object`. | ||
| 2977 |      * @returns {Object} Returns `object`. | ||
| 2978 | */ | ||
| 2979 | var baseForRight = createBaseFor(true); | ||
| 2980 | |||
| 2981 | /** | ||
| 2982 | * The base implementation of `_.forOwn` without support for iteratee shorthands. | ||
| 2983 | * | ||
| 2984 | * @private | ||
| 2985 |      * @param {Object} object The object to iterate over. | ||
| 2986 |      * @param {Function} iteratee The function invoked per iteration. | ||
| 2987 |      * @returns {Object} Returns `object`. | ||
| 2988 | */ | ||
| 2989 |     function baseForOwn(object, iteratee) { | ||
| 2990 | return object && baseFor(object, iteratee, keys); | ||
| 2991 | } | ||
| 2992 | |||
| 2993 | /** | ||
| 2994 | * The base implementation of `_.forOwnRight` without support for iteratee shorthands. | ||
| 2995 | * | ||
| 2996 | * @private | ||
| 2997 |      * @param {Object} object The object to iterate over. | ||
| 2998 |      * @param {Function} iteratee The function invoked per iteration. | ||
| 2999 |      * @returns {Object} Returns `object`. | ||
| 3000 | */ | ||
| 3001 |     function baseForOwnRight(object, iteratee) { | ||
| 3002 | return object && baseForRight(object, iteratee, keys); | ||
| 3003 | } | ||
| 3004 | |||
| 3005 | /** | ||
| 3006 | * The base implementation of `_.functions` which creates an array of | ||
| 3007 | * `object` function property names filtered from `props`. | ||
| 3008 | * | ||
| 3009 | * @private | ||
| 3010 |      * @param {Object} object The object to inspect. | ||
| 3011 |      * @param {Array} props The property names to filter. | ||
| 3012 |      * @returns {Array} Returns the function names. | ||
| 3013 | */ | ||
| 3014 |     function baseFunctions(object, props) { | ||
| 3015 |       return arrayFilter(props, function(key) { | ||
| 3016 | return isFunction(object[key]); | ||
| 3017 | }); | ||
| 3018 | } | ||
| 3019 | |||
| 3020 | /** | ||
| 3021 | * The base implementation of `_.get` without support for default values. | ||
| 3022 | * | ||
| 3023 | * @private | ||
| 3024 |      * @param {Object} object The object to query. | ||
| 3025 |      * @param {Array|string} path The path of the property to get. | ||
| 3026 |      * @returns {*} Returns the resolved value. | ||
| 3027 | */ | ||
| 3028 |     function baseGet(object, path) { | ||
| 3029 | path = castPath(path, object); | ||
| 3030 | |||
| 3031 | var index = 0, | ||
| 3032 | length = path.length; | ||
| 3033 | |||
| 3034 |       while (object != null && index < length) { | ||
| 3035 | object = object[toKey(path[index++])]; | ||
| 3036 | } | ||
| 3037 | return (index && index == length) ? object : undefined; | ||
| 3038 | } | ||
| 3039 | |||
| 3040 | /** | ||
| 3041 | * The base implementation of `getAllKeys` and `getAllKeysIn` which uses | ||
| 3042 | * `keysFunc` and `symbolsFunc` to get the enumerable property names and | ||
| 3043 | * symbols of `object`. | ||
| 3044 | * | ||
| 3045 | * @private | ||
| 3046 |      * @param {Object} object The object to query. | ||
| 3047 |      * @param {Function} keysFunc The function to get the keys of `object`. | ||
| 3048 |      * @param {Function} symbolsFunc The function to get the symbols of `object`. | ||
| 3049 |      * @returns {Array} Returns the array of property names and symbols. | ||
| 3050 | */ | ||
| 3051 |     function baseGetAllKeys(object, keysFunc, symbolsFunc) { | ||
| 3052 | var result = keysFunc(object); | ||
| 3053 | return isArray(object) ? result : arrayPush(result, symbolsFunc(object)); | ||
| 3054 | } | ||
| 3055 | |||
| 3056 | /** | ||
| 3057 | * The base implementation of `getTag` without fallbacks for buggy environments. | ||
| 3058 | * | ||
| 3059 | * @private | ||
| 3060 |      * @param {*} value The value to query. | ||
| 3061 |      * @returns {string} Returns the `toStringTag`. | ||
| 3062 | */ | ||
| 3063 |     function baseGetTag(value) { | ||
| 3064 |       if (value == null) { | ||
| 3065 | return value === undefined ? undefinedTag : nullTag; | ||
| 3066 | } | ||
| 3067 | return (symToStringTag && symToStringTag in Object(value)) | ||
| 3068 | ? getRawTag(value) | ||
| 3069 | : objectToString(value); | ||
| 3070 | } | ||
| 3071 | |||
| 3072 | /** | ||
| 3073 | * The base implementation of `_.gt` which doesn't coerce arguments. | ||
| 3074 | * | ||
| 3075 | * @private | ||
| 3076 |      * @param {*} value The value to compare. | ||
| 3077 |      * @param {*} other The other value to compare. | ||
| 3078 |      * @returns {boolean} Returns `true` if `value` is greater than `other`, | ||
| 3079 | * else `false`. | ||
| 3080 | */ | ||
| 3081 |     function baseGt(value, other) { | ||
| 3082 | return value > other; | ||
| 3083 | } | ||
| 3084 | |||
| 3085 | /** | ||
| 3086 | * The base implementation of `_.has` without support for deep paths. | ||
| 3087 | * | ||
| 3088 | * @private | ||
| 3089 |      * @param {Object} [object] The object to query. | ||
| 3090 |      * @param {Array|string} key The key to check. | ||
| 3091 |      * @returns {boolean} Returns `true` if `key` exists, else `false`. | ||
| 3092 | */ | ||
| 3093 |     function baseHas(object, key) { | ||
| 3094 | return object != null && hasOwnProperty.call(object, key); | ||
| 3095 | } | ||
| 3096 | |||
| 3097 | /** | ||
| 3098 | * The base implementation of `_.hasIn` without support for deep paths. | ||
| 3099 | * | ||
| 3100 | * @private | ||
| 3101 |      * @param {Object} [object] The object to query. | ||
| 3102 |      * @param {Array|string} key The key to check. | ||
| 3103 |      * @returns {boolean} Returns `true` if `key` exists, else `false`. | ||
| 3104 | */ | ||
| 3105 |     function baseHasIn(object, key) { | ||
| 3106 | return object != null && key in Object(object); | ||
| 3107 | } | ||
| 3108 | |||
| 3109 | /** | ||
| 3110 | * The base implementation of `_.inRange` which doesn't coerce arguments. | ||
| 3111 | * | ||
| 3112 | * @private | ||
| 3113 |      * @param {number} number The number to check. | ||
| 3114 |      * @param {number} start The start of the range. | ||
| 3115 |      * @param {number} end The end of the range. | ||
| 3116 |      * @returns {boolean} Returns `true` if `number` is in the range, else `false`. | ||
| 3117 | */ | ||
| 3118 |     function baseInRange(number, start, end) { | ||
| 3119 | return number >= nativeMin(start, end) && number < nativeMax(start, end); | ||
| 3120 | } | ||
| 3121 | |||
| 3122 | /** | ||
| 3123 | * The base implementation of methods like `_.intersection`, without support | ||
| 3124 | * for iteratee shorthands, that accepts an array of arrays to inspect. | ||
| 3125 | * | ||
| 3126 | * @private | ||
| 3127 |      * @param {Array} arrays The arrays to inspect. | ||
| 3128 |      * @param {Function} [iteratee] The iteratee invoked per element. | ||
| 3129 |      * @param {Function} [comparator] The comparator invoked per element. | ||
| 3130 |      * @returns {Array} Returns the new array of shared values. | ||
| 3131 | */ | ||
| 3132 |     function baseIntersection(arrays, iteratee, comparator) { | ||
| 3133 | var includes = comparator ? arrayIncludesWith : arrayIncludes, | ||
| 3134 | length = arrays[0].length, | ||
| 3135 | othLength = arrays.length, | ||
| 3136 | othIndex = othLength, | ||
| 3137 | caches = Array(othLength), | ||
| 3138 | maxLength = Infinity, | ||
| 3139 | result = []; | ||
| 3140 | |||
| 3141 |       while (othIndex--) { | ||
| 3142 | var array = arrays[othIndex]; | ||
| 3143 |         if (othIndex && iteratee) { | ||
| 3144 | array = arrayMap(array, baseUnary(iteratee)); | ||
| 3145 | } | ||
| 3146 | maxLength = nativeMin(array.length, maxLength); | ||
| 3147 | caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120)) | ||
| 3148 | ? new SetCache(othIndex && array) | ||
| 3149 | : undefined; | ||
| 3150 | } | ||
| 3151 | array = arrays[0]; | ||
| 3152 | |||
| 3153 | var index = -1, | ||
| 3154 | seen = caches[0]; | ||
| 3155 | |||
| 3156 | outer: | ||
| 3157 |       while (++index < length && result.length < maxLength) { | ||
| 3158 | var value = array[index], | ||
| 3159 | computed = iteratee ? iteratee(value) : value; | ||
| 3160 | |||
| 3161 | value = (comparator || value !== 0) ? value : 0; | ||
| 3162 | if (!(seen | ||
| 3163 | ? cacheHas(seen, computed) | ||
| 3164 | : includes(result, computed, comparator) | ||
| 3165 |             )) { | ||
| 3166 | othIndex = othLength; | ||
| 3167 |           while (--othIndex) { | ||
| 3168 | var cache = caches[othIndex]; | ||
| 3169 | if (!(cache | ||
| 3170 | ? cacheHas(cache, computed) | ||
| 3171 | : includes(arrays[othIndex], computed, comparator)) | ||
| 3172 |                 ) { | ||
| 3173 | continue outer; | ||
| 3174 | } | ||
| 3175 | } | ||
| 3176 |           if (seen) { | ||
| 3177 | seen.push(computed); | ||
| 3178 | } | ||
| 3179 | result.push(value); | ||
| 3180 | } | ||
| 3181 | } | ||
| 3182 | return result; | ||
| 3183 | } | ||
| 3184 | |||
| 3185 | /** | ||
| 3186 | * The base implementation of `_.invert` and `_.invertBy` which inverts | ||
| 3187 | * `object` with values transformed by `iteratee` and set by `setter`. | ||
| 3188 | * | ||
| 3189 | * @private | ||
| 3190 |      * @param {Object} object The object to iterate over. | ||
| 3191 |      * @param {Function} setter The function to set `accumulator` values. | ||
| 3192 |      * @param {Function} iteratee The iteratee to transform values. | ||
| 3193 |      * @param {Object} accumulator The initial inverted object. | ||
| 3194 |      * @returns {Function} Returns `accumulator`. | ||
| 3195 | */ | ||
| 3196 |     function baseInverter(object, setter, iteratee, accumulator) { | ||
| 3197 |       baseForOwn(object, function(value, key, object) { | ||
| 3198 | setter(accumulator, iteratee(value), key, object); | ||
| 3199 | }); | ||
| 3200 | return accumulator; | ||
| 3201 | } | ||
| 3202 | |||
| 3203 | /** | ||
| 3204 | * The base implementation of `_.invoke` without support for individual | ||
| 3205 | * method arguments. | ||
| 3206 | * | ||
| 3207 | * @private | ||
| 3208 |      * @param {Object} object The object to query. | ||
| 3209 |      * @param {Array|string} path The path of the method to invoke. | ||
| 3210 |      * @param {Array} args The arguments to invoke the method with. | ||
| 3211 |      * @returns {*} Returns the result of the invoked method. | ||
| 3212 | */ | ||
| 3213 |     function baseInvoke(object, path, args) { | ||
| 3214 | path = castPath(path, object); | ||
| 3215 | object = parent(object, path); | ||
| 3216 | var func = object == null ? object : object[toKey(last(path))]; | ||
| 3217 | return func == null ? undefined : apply(func, object, args); | ||
| 3218 | } | ||
| 3219 | |||
| 3220 | /** | ||
| 3221 | * The base implementation of `_.isArguments`. | ||
| 3222 | * | ||
| 3223 | * @private | ||
| 3224 |      * @param {*} value The value to check. | ||
| 3225 |      * @returns {boolean} Returns `true` if `value` is an `arguments` object, | ||
| 3226 | */ | ||
| 3227 |     function baseIsArguments(value) { | ||
| 3228 | return isObjectLike(value) && baseGetTag(value) == argsTag; | ||
| 3229 | } | ||
| 3230 | |||
| 3231 | /** | ||
| 3232 | * The base implementation of `_.isArrayBuffer` without Node.js optimizations. | ||
| 3233 | * | ||
| 3234 | * @private | ||
| 3235 |      * @param {*} value The value to check. | ||
| 3236 |      * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`. | ||
| 3237 | */ | ||
| 3238 |     function baseIsArrayBuffer(value) { | ||
| 3239 | return isObjectLike(value) && baseGetTag(value) == arrayBufferTag; | ||
| 3240 | } | ||
| 3241 | |||
| 3242 | /** | ||
| 3243 | * The base implementation of `_.isDate` without Node.js optimizations. | ||
| 3244 | * | ||
| 3245 | * @private | ||
| 3246 |      * @param {*} value The value to check. | ||
| 3247 |      * @returns {boolean} Returns `true` if `value` is a date object, else `false`. | ||
| 3248 | */ | ||
| 3249 |     function baseIsDate(value) { | ||
| 3250 | return isObjectLike(value) && baseGetTag(value) == dateTag; | ||
| 3251 | } | ||
| 3252 | |||
| 3253 | /** | ||
| 3254 | * The base implementation of `_.isEqual` which supports partial comparisons | ||
| 3255 | * and tracks traversed objects. | ||
| 3256 | * | ||
| 3257 | * @private | ||
| 3258 |      * @param {*} value The value to compare. | ||
| 3259 |      * @param {*} other The other value to compare. | ||
| 3260 |      * @param {boolean} bitmask The bitmask flags. | ||
| 3261 | * 1 - Unordered comparison | ||
| 3262 | * 2 - Partial comparison | ||
| 3263 |      * @param {Function} [customizer] The function to customize comparisons. | ||
| 3264 |      * @param {Object} [stack] Tracks traversed `value` and `other` objects. | ||
| 3265 |      * @returns {boolean} Returns `true` if the values are equivalent, else `false`. | ||
| 3266 | */ | ||
| 3267 |     function baseIsEqual(value, other, bitmask, customizer, stack) { | ||
| 3268 |       if (value === other) { | ||
| 3269 | return true; | ||
| 3270 | } | ||
| 3271 |       if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) { | ||
| 3272 | return value !== value && other !== other; | ||
| 3273 | } | ||
| 3274 | return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack); | ||
| 3275 | } | ||
| 3276 | |||
| 3277 | /** | ||
| 3278 | * A specialized version of `baseIsEqual` for arrays and objects which performs | ||
| 3279 | * deep comparisons and tracks traversed objects enabling objects with circular | ||
| 3280 | * references to be compared. | ||
| 3281 | * | ||
| 3282 | * @private | ||
| 3283 |      * @param {Object} object The object to compare. | ||
| 3284 |      * @param {Object} other The other object to compare. | ||
| 3285 |      * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. | ||
| 3286 |      * @param {Function} customizer The function to customize comparisons. | ||
| 3287 |      * @param {Function} equalFunc The function to determine equivalents of values. | ||
| 3288 |      * @param {Object} [stack] Tracks traversed `object` and `other` objects. | ||
| 3289 |      * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. | ||
| 3290 | */ | ||
| 3291 |     function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) { | ||
| 3292 | var objIsArr = isArray(object), | ||
| 3293 | othIsArr = isArray(other), | ||
| 3294 | objTag = objIsArr ? arrayTag : getTag(object), | ||
| 3295 | othTag = othIsArr ? arrayTag : getTag(other); | ||
| 3296 | |||
| 3297 | objTag = objTag == argsTag ? objectTag : objTag; | ||
| 3298 | othTag = othTag == argsTag ? objectTag : othTag; | ||
| 3299 | |||
| 3300 | var objIsObj = objTag == objectTag, | ||
| 3301 | othIsObj = othTag == objectTag, | ||
| 3302 | isSameTag = objTag == othTag; | ||
| 3303 | |||
| 3304 |       if (isSameTag && isBuffer(object)) { | ||
| 3305 |         if (!isBuffer(other)) { | ||
| 3306 | return false; | ||
| 3307 | } | ||
| 3308 | objIsArr = true; | ||
| 3309 | objIsObj = false; | ||
| 3310 | } | ||
| 3311 |       if (isSameTag && !objIsObj) { | ||
| 3312 | stack || (stack = new Stack); | ||
| 3313 | return (objIsArr || isTypedArray(object)) | ||
| 3314 | ? equalArrays(object, other, bitmask, customizer, equalFunc, stack) | ||
| 3315 | : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack); | ||
| 3316 | } | ||
| 3317 |       if (!(bitmask & COMPARE_PARTIAL_FLAG)) { | ||
| 3318 | var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'), | ||
| 3319 | othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__'); | ||
| 3320 | |||
| 3321 |         if (objIsWrapped || othIsWrapped) { | ||
| 3322 | var objUnwrapped = objIsWrapped ? object.value() : object, | ||
| 3323 | othUnwrapped = othIsWrapped ? other.value() : other; | ||
| 3324 | |||
| 3325 | stack || (stack = new Stack); | ||
| 3326 | return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack); | ||
| 3327 | } | ||
| 3328 | } | ||
| 3329 |       if (!isSameTag) { | ||
| 3330 | return false; | ||
| 3331 | } | ||
| 3332 | stack || (stack = new Stack); | ||
| 3333 | return equalObjects(object, other, bitmask, customizer, equalFunc, stack); | ||
| 3334 | } | ||
| 3335 | |||
| 3336 | /** | ||
| 3337 | * The base implementation of `_.isMap` without Node.js optimizations. | ||
| 3338 | * | ||
| 3339 | * @private | ||
| 3340 |      * @param {*} value The value to check. | ||
| 3341 |      * @returns {boolean} Returns `true` if `value` is a map, else `false`. | ||
| 3342 | */ | ||
| 3343 |     function baseIsMap(value) { | ||
| 3344 | return isObjectLike(value) && getTag(value) == mapTag; | ||
| 3345 | } | ||
| 3346 | |||
| 3347 | /** | ||
| 3348 | * The base implementation of `_.isMatch` without support for iteratee shorthands. | ||
| 3349 | * | ||
| 3350 | * @private | ||
| 3351 |      * @param {Object} object The object to inspect. | ||
| 3352 |      * @param {Object} source The object of property values to match. | ||
| 3353 |      * @param {Array} matchData The property names, values, and compare flags to match. | ||
| 3354 |      * @param {Function} [customizer] The function to customize comparisons. | ||
| 3355 |      * @returns {boolean} Returns `true` if `object` is a match, else `false`. | ||
| 3356 | */ | ||
| 3357 |     function baseIsMatch(object, source, matchData, customizer) { | ||
| 3358 | var index = matchData.length, | ||
| 3359 | length = index, | ||
| 3360 | noCustomizer = !customizer; | ||
| 3361 | |||
| 3362 |       if (object == null) { | ||
| 3363 | return !length; | ||
| 3364 | } | ||
| 3365 | object = Object(object); | ||
| 3366 |       while (index--) { | ||
| 3367 | var data = matchData[index]; | ||
| 3368 | if ((noCustomizer && data[2]) | ||
| 3369 | ? data[1] !== object[data[0]] | ||
| 3370 | : !(data[0] in object) | ||
| 3371 |             ) { | ||
| 3372 | return false; | ||
| 3373 | } | ||
| 3374 | } | ||
| 3375 |       while (++index < length) { | ||
| 3376 | data = matchData[index]; | ||
| 3377 | var key = data[0], | ||
| 3378 | objValue = object[key], | ||
| 3379 | srcValue = data[1]; | ||
| 3380 | |||
| 3381 |         if (noCustomizer && data[2]) { | ||
| 3382 |           if (objValue === undefined && !(key in object)) { | ||
| 3383 | return false; | ||
| 3384 | } | ||
| 3385 |         } else { | ||
| 3386 | var stack = new Stack; | ||
| 3387 |           if (customizer) { | ||
| 3388 | var result = customizer(objValue, srcValue, key, object, source, stack); | ||
| 3389 | } | ||
| 3390 | if (!(result === undefined | ||
| 3391 | ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack) | ||
| 3392 | : result | ||
| 3393 |               )) { | ||
| 3394 | return false; | ||
| 3395 | } | ||
| 3396 | } | ||
| 3397 | } | ||
| 3398 | return true; | ||
| 3399 | } | ||
| 3400 | |||
| 3401 | /** | ||
| 3402 | * The base implementation of `_.isNative` without bad shim checks. | ||
| 3403 | * | ||
| 3404 | * @private | ||
| 3405 |      * @param {*} value The value to check. | ||
| 3406 |      * @returns {boolean} Returns `true` if `value` is a native function, | ||
| 3407 | * else `false`. | ||
| 3408 | */ | ||
| 3409 |     function baseIsNative(value) { | ||
| 3410 |       if (!isObject(value) || isMasked(value)) { | ||
| 3411 | return false; | ||
| 3412 | } | ||
| 3413 | var pattern = isFunction(value) ? reIsNative : reIsHostCtor; | ||
| 3414 | return pattern.test(toSource(value)); | ||
| 3415 | } | ||
| 3416 | |||
| 3417 | /** | ||
| 3418 | * The base implementation of `_.isRegExp` without Node.js optimizations. | ||
| 3419 | * | ||
| 3420 | * @private | ||
| 3421 |      * @param {*} value The value to check. | ||
| 3422 |      * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. | ||
| 3423 | */ | ||
| 3424 |     function baseIsRegExp(value) { | ||
| 3425 | return isObjectLike(value) && baseGetTag(value) == regexpTag; | ||
| 3426 | } | ||
| 3427 | |||
| 3428 | /** | ||
| 3429 | * The base implementation of `_.isSet` without Node.js optimizations. | ||
| 3430 | * | ||
| 3431 | * @private | ||
| 3432 |      * @param {*} value The value to check. | ||
| 3433 |      * @returns {boolean} Returns `true` if `value` is a set, else `false`. | ||
| 3434 | */ | ||
| 3435 |     function baseIsSet(value) { | ||
| 3436 | return isObjectLike(value) && getTag(value) == setTag; | ||
| 3437 | } | ||
| 3438 | |||
| 3439 | /** | ||
| 3440 | * The base implementation of `_.isTypedArray` without Node.js optimizations. | ||
| 3441 | * | ||
| 3442 | * @private | ||
| 3443 |      * @param {*} value The value to check. | ||
| 3444 |      * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. | ||
| 3445 | */ | ||
| 3446 |     function baseIsTypedArray(value) { | ||
| 3447 | return isObjectLike(value) && | ||
| 3448 | isLength(value.length) && !!typedArrayTags[baseGetTag(value)]; | ||
| 3449 | } | ||
| 3450 | |||
| 3451 | /** | ||
| 3452 | * The base implementation of `_.iteratee`. | ||
| 3453 | * | ||
| 3454 | * @private | ||
| 3455 |      * @param {*} [value=_.identity] The value to convert to an iteratee. | ||
| 3456 |      * @returns {Function} Returns the iteratee. | ||
| 3457 | */ | ||
| 3458 |     function baseIteratee(value) { | ||
| 3459 | // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9. | ||
| 3460 | // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details. | ||
| 3461 |       if (typeof value == 'function') { | ||
| 3462 | return value; | ||
| 3463 | } | ||
| 3464 |       if (value == null) { | ||
| 3465 | return identity; | ||
| 3466 | } | ||
| 3467 |       if (typeof value == 'object') { | ||
| 3468 | return isArray(value) | ||
| 3469 | ? baseMatchesProperty(value[0], value[1]) | ||
| 3470 | : baseMatches(value); | ||
| 3471 | } | ||
| 3472 | return property(value); | ||
| 3473 | } | ||
| 3474 | |||
| 3475 | /** | ||
| 3476 | * The base implementation of `_.keys` which doesn't treat sparse arrays as dense. | ||
| 3477 | * | ||
| 3478 | * @private | ||
| 3479 |      * @param {Object} object The object to query. | ||
| 3480 |      * @returns {Array} Returns the array of property names. | ||
| 3481 | */ | ||
| 3482 |     function baseKeys(object) { | ||
| 3483 |       if (!isPrototype(object)) { | ||
| 3484 | return nativeKeys(object); | ||
| 3485 | } | ||
| 3486 | var result = []; | ||
| 3487 |       for (var key in Object(object)) { | ||
| 3488 |         if (hasOwnProperty.call(object, key) && key != 'constructor') { | ||
| 3489 | result.push(key); | ||
| 3490 | } | ||
| 3491 | } | ||
| 3492 | return result; | ||
| 3493 | } | ||
| 3494 | |||
| 3495 | /** | ||
| 3496 | * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense. | ||
| 3497 | * | ||
| 3498 | * @private | ||
| 3499 |      * @param {Object} object The object to query. | ||
| 3500 |      * @returns {Array} Returns the array of property names. | ||
| 3501 | */ | ||
| 3502 |     function baseKeysIn(object) { | ||
| 3503 |       if (!isObject(object)) { | ||
| 3504 | return nativeKeysIn(object); | ||
| 3505 | } | ||
| 3506 | var isProto = isPrototype(object), | ||
| 3507 | result = []; | ||
| 3508 | |||
| 3509 |       for (var key in object) { | ||
| 3510 |         if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) { | ||
| 3511 | result.push(key); | ||
| 3512 | } | ||
| 3513 | } | ||
| 3514 | return result; | ||
| 3515 | } | ||
| 3516 | |||
| 3517 | /** | ||
| 3518 | * The base implementation of `_.lt` which doesn't coerce arguments. | ||
| 3519 | * | ||
| 3520 | * @private | ||
| 3521 |      * @param {*} value The value to compare. | ||
| 3522 |      * @param {*} other The other value to compare. | ||
| 3523 |      * @returns {boolean} Returns `true` if `value` is less than `other`, | ||
| 3524 | * else `false`. | ||
| 3525 | */ | ||
| 3526 |     function baseLt(value, other) { | ||
| 3527 | return value < other; | ||
| 3528 | } | ||
| 3529 | |||
| 3530 | /** | ||
| 3531 | * The base implementation of `_.map` without support for iteratee shorthands. | ||
| 3532 | * | ||
| 3533 | * @private | ||
| 3534 |      * @param {Array|Object} collection The collection to iterate over. | ||
| 3535 |      * @param {Function} iteratee The function invoked per iteration. | ||
| 3536 |      * @returns {Array} Returns the new mapped array. | ||
| 3537 | */ | ||
| 3538 |     function baseMap(collection, iteratee) { | ||
| 3539 | var index = -1, | ||
| 3540 | result = isArrayLike(collection) ? Array(collection.length) : []; | ||
| 3541 | |||
| 3542 |       baseEach(collection, function(value, key, collection) { | ||
| 3543 | result[++index] = iteratee(value, key, collection); | ||
| 3544 | }); | ||
| 3545 | return result; | ||
| 3546 | } | ||
| 3547 | |||
| 3548 | /** | ||
| 3549 | * The base implementation of `_.matches` which doesn't clone `source`. | ||
| 3550 | * | ||
| 3551 | * @private | ||
| 3552 |      * @param {Object} source The object of property values to match. | ||
| 3553 |      * @returns {Function} Returns the new spec function. | ||
| 3554 | */ | ||
| 3555 |     function baseMatches(source) { | ||
| 3556 | var matchData = getMatchData(source); | ||
| 3557 |       if (matchData.length == 1 && matchData[0][2]) { | ||
| 3558 | return matchesStrictComparable(matchData[0][0], matchData[0][1]); | ||
| 3559 | } | ||
| 3560 |       return function(object) { | ||
| 3561 | return object === source || baseIsMatch(object, source, matchData); | ||
| 3562 | }; | ||
| 3563 | } | ||
| 3564 | |||
| 3565 | /** | ||
| 3566 | * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`. | ||
| 3567 | * | ||
| 3568 | * @private | ||
| 3569 |      * @param {string} path The path of the property to get. | ||
| 3570 |      * @param {*} srcValue The value to match. | ||
| 3571 |      * @returns {Function} Returns the new spec function. | ||
| 3572 | */ | ||
| 3573 |     function baseMatchesProperty(path, srcValue) { | ||
| 3574 |       if (isKey(path) && isStrictComparable(srcValue)) { | ||
| 3575 | return matchesStrictComparable(toKey(path), srcValue); | ||
| 3576 | } | ||
| 3577 |       return function(object) { | ||
| 3578 | var objValue = get(object, path); | ||
| 3579 | return (objValue === undefined && objValue === srcValue) | ||
| 3580 | ? hasIn(object, path) | ||
| 3581 | : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG); | ||
| 3582 | }; | ||
| 3583 | } | ||
| 3584 | |||
| 3585 | /** | ||
| 3586 | * The base implementation of `_.merge` without support for multiple sources. | ||
| 3587 | * | ||
| 3588 | * @private | ||
| 3589 |      * @param {Object} object The destination object. | ||
| 3590 |      * @param {Object} source The source object. | ||
| 3591 |      * @param {number} srcIndex The index of `source`. | ||
| 3592 |      * @param {Function} [customizer] The function to customize merged values. | ||
| 3593 |      * @param {Object} [stack] Tracks traversed source values and their merged | ||
| 3594 | * counterparts. | ||
| 3595 | */ | ||
| 3596 |     function baseMerge(object, source, srcIndex, customizer, stack) { | ||
| 3597 |       if (object === source) { | ||
| 3598 | return; | ||
| 3599 | } | ||
| 3600 |       baseFor(source, function(srcValue, key) { | ||
| 3601 | stack || (stack = new Stack); | ||
| 3602 |         if (isObject(srcValue)) { | ||
| 3603 | baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack); | ||
| 3604 | } | ||
| 3605 |         else { | ||
| 3606 | var newValue = customizer | ||
| 3607 | ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack) | ||
| 3608 | : undefined; | ||
| 3609 | |||
| 3610 |           if (newValue === undefined) { | ||
| 3611 | newValue = srcValue; | ||
| 3612 | } | ||
| 3613 | assignMergeValue(object, key, newValue); | ||
| 3614 | } | ||
| 3615 | }, keysIn); | ||
| 3616 | } | ||
| 3617 | |||
| 3618 | /** | ||
| 3619 | * A specialized version of `baseMerge` for arrays and objects which performs | ||
| 3620 | * deep merges and tracks traversed objects enabling objects with circular | ||
| 3621 | * references to be merged. | ||
| 3622 | * | ||
| 3623 | * @private | ||
| 3624 |      * @param {Object} object The destination object. | ||
| 3625 |      * @param {Object} source The source object. | ||
| 3626 |      * @param {string} key The key of the value to merge. | ||
| 3627 |      * @param {number} srcIndex The index of `source`. | ||
| 3628 |      * @param {Function} mergeFunc The function to merge values. | ||
| 3629 |      * @param {Function} [customizer] The function to customize assigned values. | ||
| 3630 |      * @param {Object} [stack] Tracks traversed source values and their merged | ||
| 3631 | * counterparts. | ||
| 3632 | */ | ||
| 3633 |     function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) { | ||
| 3634 | var objValue = safeGet(object, key), | ||
| 3635 | srcValue = safeGet(source, key), | ||
| 3636 | stacked = stack.get(srcValue); | ||
| 3637 | |||
| 3638 |       if (stacked) { | ||
| 3639 | assignMergeValue(object, key, stacked); | ||
| 3640 | return; | ||
| 3641 | } | ||
| 3642 | var newValue = customizer | ||
| 3643 | ? customizer(objValue, srcValue, (key + ''), object, source, stack) | ||
| 3644 | : undefined; | ||
| 3645 | |||
| 3646 | var isCommon = newValue === undefined; | ||
| 3647 | |||
| 3648 |       if (isCommon) { | ||
| 3649 | var isArr = isArray(srcValue), | ||
| 3650 | isBuff = !isArr && isBuffer(srcValue), | ||
| 3651 | isTyped = !isArr && !isBuff && isTypedArray(srcValue); | ||
| 3652 | |||
| 3653 | newValue = srcValue; | ||
| 3654 |         if (isArr || isBuff || isTyped) { | ||
| 3655 |           if (isArray(objValue)) { | ||
| 3656 | newValue = objValue; | ||
| 3657 | } | ||
| 3658 |           else if (isArrayLikeObject(objValue)) { | ||
| 3659 | newValue = copyArray(objValue); | ||
| 3660 | } | ||
| 3661 |           else if (isBuff) { | ||
| 3662 | isCommon = false; | ||
| 3663 | newValue = cloneBuffer(srcValue, true); | ||
| 3664 | } | ||
| 3665 |           else if (isTyped) { | ||
| 3666 | isCommon = false; | ||
| 3667 | newValue = cloneTypedArray(srcValue, true); | ||
| 3668 | } | ||
| 3669 |           else { | ||
| 3670 | newValue = []; | ||
| 3671 | } | ||
| 3672 | } | ||
| 3673 |         else if (isPlainObject(srcValue) || isArguments(srcValue)) { | ||
| 3674 | newValue = objValue; | ||
| 3675 |           if (isArguments(objValue)) { | ||
| 3676 | newValue = toPlainObject(objValue); | ||
| 3677 | } | ||
| 3678 |           else if (!isObject(objValue) || isFunction(objValue)) { | ||
| 3679 | newValue = initCloneObject(srcValue); | ||
| 3680 | } | ||
| 3681 | } | ||
| 3682 |         else { | ||
| 3683 | isCommon = false; | ||
| 3684 | } | ||
| 3685 | } | ||
| 3686 |       if (isCommon) { | ||
| 3687 | // Recursively merge objects and arrays (susceptible to call stack limits). | ||
| 3688 | stack.set(srcValue, newValue); | ||
| 3689 | mergeFunc(newValue, srcValue, srcIndex, customizer, stack); | ||
| 3690 | stack['delete'](srcValue); | ||
| 3691 | } | ||
| 3692 | assignMergeValue(object, key, newValue); | ||
| 3693 | } | ||
| 3694 | |||
| 3695 | /** | ||
| 3696 | * The base implementation of `_.nth` which doesn't coerce arguments. | ||
| 3697 | * | ||
| 3698 | * @private | ||
| 3699 |      * @param {Array} array The array to query. | ||
| 3700 |      * @param {number} n The index of the element to return. | ||
| 3701 |      * @returns {*} Returns the nth element of `array`. | ||
| 3702 | */ | ||
| 3703 |     function baseNth(array, n) { | ||
| 3704 | var length = array.length; | ||
| 3705 |       if (!length) { | ||
| 3706 | return; | ||
| 3707 | } | ||
| 3708 | n += n < 0 ? length : 0; | ||
| 3709 | return isIndex(n, length) ? array[n] : undefined; | ||
| 3710 | } | ||
| 3711 | |||
| 3712 | /** | ||
| 3713 | * The base implementation of `_.orderBy` without param guards. | ||
| 3714 | * | ||
| 3715 | * @private | ||
| 3716 |      * @param {Array|Object} collection The collection to iterate over. | ||
| 3717 |      * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by. | ||
| 3718 |      * @param {string[]} orders The sort orders of `iteratees`. | ||
| 3719 |      * @returns {Array} Returns the new sorted array. | ||
| 3720 | */ | ||
| 3721 |     function baseOrderBy(collection, iteratees, orders) { | ||
| 3722 | var index = -1; | ||
| 3723 | iteratees = arrayMap(iteratees.length ? iteratees : [identity], baseUnary(getIteratee())); | ||
| 3724 | |||
| 3725 |       var result = baseMap(collection, function(value, key, collection) { | ||
| 3726 |         var criteria = arrayMap(iteratees, function(iteratee) { | ||
| 3727 | return iteratee(value); | ||
| 3728 | }); | ||
| 3729 |         return { 'criteria': criteria, 'index': ++index, 'value': value }; | ||
| 3730 | }); | ||
| 3731 | |||
| 3732 |       return baseSortBy(result, function(object, other) { | ||
| 3733 | return compareMultiple(object, other, orders); | ||
| 3734 | }); | ||
| 3735 | } | ||
| 3736 | |||
| 3737 | /** | ||
| 3738 | * The base implementation of `_.pick` without support for individual | ||
| 3739 | * property identifiers. | ||
| 3740 | * | ||
| 3741 | * @private | ||
| 3742 |      * @param {Object} object The source object. | ||
| 3743 |      * @param {string[]} paths The property paths to pick. | ||
| 3744 |      * @returns {Object} Returns the new object. | ||
| 3745 | */ | ||
| 3746 |     function basePick(object, paths) { | ||
| 3747 |       return basePickBy(object, paths, function(value, path) { | ||
| 3748 | return hasIn(object, path); | ||
| 3749 | }); | ||
| 3750 | } | ||
| 3751 | |||
| 3752 | /** | ||
| 3753 | * The base implementation of `_.pickBy` without support for iteratee shorthands. | ||
| 3754 | * | ||
| 3755 | * @private | ||
| 3756 |      * @param {Object} object The source object. | ||
| 3757 |      * @param {string[]} paths The property paths to pick. | ||
| 3758 |      * @param {Function} predicate The function invoked per property. | ||
| 3759 |      * @returns {Object} Returns the new object. | ||
| 3760 | */ | ||
| 3761 |     function basePickBy(object, paths, predicate) { | ||
| 3762 | var index = -1, | ||
| 3763 | length = paths.length, | ||
| 3764 |           result = {}; | ||
| 3765 | |||
| 3766 |       while (++index < length) { | ||
| 3767 | var path = paths[index], | ||
| 3768 | value = baseGet(object, path); | ||
| 3769 | |||
| 3770 |         if (predicate(value, path)) { | ||
| 3771 | baseSet(result, castPath(path, object), value); | ||
| 3772 | } | ||
| 3773 | } | ||
| 3774 | return result; | ||
| 3775 | } | ||
| 3776 | |||
| 3777 | /** | ||
| 3778 | * A specialized version of `baseProperty` which supports deep paths. | ||
| 3779 | * | ||
| 3780 | * @private | ||
| 3781 |      * @param {Array|string} path The path of the property to get. | ||
| 3782 |      * @returns {Function} Returns the new accessor function. | ||
| 3783 | */ | ||
| 3784 |     function basePropertyDeep(path) { | ||
| 3785 |       return function(object) { | ||
| 3786 | return baseGet(object, path); | ||
| 3787 | }; | ||
| 3788 | } | ||
| 3789 | |||
| 3790 | /** | ||
| 3791 | * The base implementation of `_.pullAllBy` without support for iteratee | ||
| 3792 | * shorthands. | ||
| 3793 | * | ||
| 3794 | * @private | ||
| 3795 |      * @param {Array} array The array to modify. | ||
| 3796 |      * @param {Array} values The values to remove. | ||
| 3797 |      * @param {Function} [iteratee] The iteratee invoked per element. | ||
| 3798 |      * @param {Function} [comparator] The comparator invoked per element. | ||
| 3799 |      * @returns {Array} Returns `array`. | ||
| 3800 | */ | ||
| 3801 |     function basePullAll(array, values, iteratee, comparator) { | ||
| 3802 | var indexOf = comparator ? baseIndexOfWith : baseIndexOf, | ||
| 3803 | index = -1, | ||
| 3804 | length = values.length, | ||
| 3805 | seen = array; | ||
| 3806 | |||
| 3807 |       if (array === values) { | ||
| 3808 | values = copyArray(values); | ||
| 3809 | } | ||
| 3810 |       if (iteratee) { | ||
| 3811 | seen = arrayMap(array, baseUnary(iteratee)); | ||
| 3812 | } | ||
| 3813 |       while (++index < length) { | ||
| 3814 | var fromIndex = 0, | ||
| 3815 | value = values[index], | ||
| 3816 | computed = iteratee ? iteratee(value) : value; | ||
| 3817 | |||
| 3818 |         while ((fromIndex = indexOf(seen, computed, fromIndex, comparator)) > -1) { | ||
| 3819 |           if (seen !== array) { | ||
| 3820 | splice.call(seen, fromIndex, 1); | ||
| 3821 | } | ||
| 3822 | splice.call(array, fromIndex, 1); | ||
| 3823 | } | ||
| 3824 | } | ||
| 3825 | return array; | ||
| 3826 | } | ||
| 3827 | |||
| 3828 | /** | ||
| 3829 | * The base implementation of `_.pullAt` without support for individual | ||
| 3830 | * indexes or capturing the removed elements. | ||
| 3831 | * | ||
| 3832 | * @private | ||
| 3833 |      * @param {Array} array The array to modify. | ||
| 3834 |      * @param {number[]} indexes The indexes of elements to remove. | ||
| 3835 |      * @returns {Array} Returns `array`. | ||
| 3836 | */ | ||
| 3837 |     function basePullAt(array, indexes) { | ||
| 3838 | var length = array ? indexes.length : 0, | ||
| 3839 | lastIndex = length - 1; | ||
| 3840 | |||
| 3841 |       while (length--) { | ||
| 3842 | var index = indexes[length]; | ||
| 3843 |         if (length == lastIndex || index !== previous) { | ||
| 3844 | var previous = index; | ||
| 3845 |           if (isIndex(index)) { | ||
| 3846 | splice.call(array, index, 1); | ||
| 3847 |           } else { | ||
| 3848 | baseUnset(array, index); | ||
| 3849 | } | ||
| 3850 | } | ||
| 3851 | } | ||
| 3852 | return array; | ||
| 3853 | } | ||
| 3854 | |||
| 3855 | /** | ||
| 3856 | * The base implementation of `_.random` without support for returning | ||
| 3857 | * floating-point numbers. | ||
| 3858 | * | ||
| 3859 | * @private | ||
| 3860 |      * @param {number} lower The lower bound. | ||
| 3861 |      * @param {number} upper The upper bound. | ||
| 3862 |      * @returns {number} Returns the random number. | ||
| 3863 | */ | ||
| 3864 |     function baseRandom(lower, upper) { | ||
| 3865 | return lower + nativeFloor(nativeRandom() * (upper - lower + 1)); | ||
| 3866 | } | ||
| 3867 | |||
| 3868 | /** | ||
| 3869 | * The base implementation of `_.range` and `_.rangeRight` which doesn't | ||
| 3870 | * coerce arguments. | ||
| 3871 | * | ||
| 3872 | * @private | ||
| 3873 |      * @param {number} start The start of the range. | ||
| 3874 |      * @param {number} end The end of the range. | ||
| 3875 |      * @param {number} step The value to increment or decrement by. | ||
| 3876 |      * @param {boolean} [fromRight] Specify iterating from right to left. | ||
| 3877 |      * @returns {Array} Returns the range of numbers. | ||
| 3878 | */ | ||
| 3879 |     function baseRange(start, end, step, fromRight) { | ||
| 3880 | var index = -1, | ||
| 3881 | length = nativeMax(nativeCeil((end - start) / (step || 1)), 0), | ||
| 3882 | result = Array(length); | ||
| 3883 | |||
| 3884 |       while (length--) { | ||
| 3885 | result[fromRight ? length : ++index] = start; | ||
| 3886 | start += step; | ||
| 3887 | } | ||
| 3888 | return result; | ||
| 3889 | } | ||
| 3890 | |||
| 3891 | /** | ||
| 3892 | * The base implementation of `_.repeat` which doesn't coerce arguments. | ||
| 3893 | * | ||
| 3894 | * @private | ||
| 3895 |      * @param {string} string The string to repeat. | ||
| 3896 |      * @param {number} n The number of times to repeat the string. | ||
| 3897 |      * @returns {string} Returns the repeated string. | ||
| 3898 | */ | ||
| 3899 |     function baseRepeat(string, n) { | ||
| 3900 | var result = ''; | ||
| 3901 |       if (!string || n < 1 || n > MAX_SAFE_INTEGER) { | ||
| 3902 | return result; | ||
| 3903 | } | ||
| 3904 | // Leverage the exponentiation by squaring algorithm for a faster repeat. | ||
| 3905 | // See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details. | ||
| 3906 |       do { | ||
| 3907 |         if (n % 2) { | ||
| 3908 | result += string; | ||
| 3909 | } | ||
| 3910 | n = nativeFloor(n / 2); | ||
| 3911 |         if (n) { | ||
| 3912 | string += string; | ||
| 3913 | } | ||
| 3914 | } while (n); | ||
| 3915 | |||
| 3916 | return result; | ||
| 3917 | } | ||
| 3918 | |||
| 3919 | /** | ||
| 3920 | * The base implementation of `_.rest` which doesn't validate or coerce arguments. | ||
| 3921 | * | ||
| 3922 | * @private | ||
| 3923 |      * @param {Function} func The function to apply a rest parameter to. | ||
| 3924 |      * @param {number} [start=func.length-1] The start position of the rest parameter. | ||
| 3925 |      * @returns {Function} Returns the new function. | ||
| 3926 | */ | ||
| 3927 |     function baseRest(func, start) { | ||
| 3928 | return setToString(overRest(func, start, identity), func + ''); | ||
| 3929 | } | ||
| 3930 | |||
| 3931 | /** | ||
| 3932 | * The base implementation of `_.sample`. | ||
| 3933 | * | ||
| 3934 | * @private | ||
| 3935 |      * @param {Array|Object} collection The collection to sample. | ||
| 3936 |      * @returns {*} Returns the random element. | ||
| 3937 | */ | ||
| 3938 |     function baseSample(collection) { | ||
| 3939 | return arraySample(values(collection)); | ||
| 3940 | } | ||
| 3941 | |||
| 3942 | /** | ||
| 3943 | * The base implementation of `_.sampleSize` without param guards. | ||
| 3944 | * | ||
| 3945 | * @private | ||
| 3946 |      * @param {Array|Object} collection The collection to sample. | ||
| 3947 |      * @param {number} n The number of elements to sample. | ||
| 3948 |      * @returns {Array} Returns the random elements. | ||
| 3949 | */ | ||
| 3950 |     function baseSampleSize(collection, n) { | ||
| 3951 | var array = values(collection); | ||
| 3952 | return shuffleSelf(array, baseClamp(n, 0, array.length)); | ||
| 3953 | } | ||
| 3954 | |||
| 3955 | /** | ||
| 3956 | * The base implementation of `_.set`. | ||
| 3957 | * | ||
| 3958 | * @private | ||
| 3959 |      * @param {Object} object The object to modify. | ||
| 3960 |      * @param {Array|string} path The path of the property to set. | ||
| 3961 |      * @param {*} value The value to set. | ||
| 3962 |      * @param {Function} [customizer] The function to customize path creation. | ||
| 3963 |      * @returns {Object} Returns `object`. | ||
| 3964 | */ | ||
| 3965 |     function baseSet(object, path, value, customizer) { | ||
| 3966 |       if (!isObject(object)) { | ||
| 3967 | return object; | ||
| 3968 | } | ||
| 3969 | path = castPath(path, object); | ||
| 3970 | |||
| 3971 | var index = -1, | ||
| 3972 | length = path.length, | ||
| 3973 | lastIndex = length - 1, | ||
| 3974 | nested = object; | ||
| 3975 | |||
| 3976 |       while (nested != null && ++index < length) { | ||
| 3977 | var key = toKey(path[index]), | ||
| 3978 | newValue = value; | ||
| 3979 | |||
| 3980 |         if (index != lastIndex) { | ||
| 3981 | var objValue = nested[key]; | ||
| 3982 | newValue = customizer ? customizer(objValue, key, nested) : undefined; | ||
| 3983 |           if (newValue === undefined) { | ||
| 3984 | newValue = isObject(objValue) | ||
| 3985 | ? objValue | ||
| 3986 |               : (isIndex(path[index + 1]) ? [] : {}); | ||
| 3987 | } | ||
| 3988 | } | ||
| 3989 | assignValue(nested, key, newValue); | ||
| 3990 | nested = nested[key]; | ||
| 3991 | } | ||
| 3992 | return object; | ||
| 3993 | } | ||
| 3994 | |||
| 3995 | /** | ||
| 3996 | * The base implementation of `setData` without support for hot loop shorting. | ||
| 3997 | * | ||
| 3998 | * @private | ||
| 3999 |      * @param {Function} func The function to associate metadata with. | ||
| 4000 |      * @param {*} data The metadata. | ||
| 4001 |      * @returns {Function} Returns `func`. | ||
| 4002 | */ | ||
| 4003 |     var baseSetData = !metaMap ? identity : function(func, data) { | ||
| 4004 | metaMap.set(func, data); | ||
| 4005 | return func; | ||
| 4006 | }; | ||
| 4007 | |||
| 4008 | /** | ||
| 4009 | * The base implementation of `setToString` without support for hot loop shorting. | ||
| 4010 | * | ||
| 4011 | * @private | ||
| 4012 |      * @param {Function} func The function to modify. | ||
| 4013 |      * @param {Function} string The `toString` result. | ||
| 4014 |      * @returns {Function} Returns `func`. | ||
| 4015 | */ | ||
| 4016 |     var baseSetToString = !defineProperty ? identity : function(func, string) { | ||
| 4017 |       return defineProperty(func, 'toString', { | ||
| 4018 | 'configurable': true, | ||
| 4019 | 'enumerable': false, | ||
| 4020 | 'value': constant(string), | ||
| 4021 | 'writable': true | ||
| 4022 | }); | ||
| 4023 | }; | ||
| 4024 | |||
| 4025 | /** | ||
| 4026 | * The base implementation of `_.shuffle`. | ||
| 4027 | * | ||
| 4028 | * @private | ||
| 4029 |      * @param {Array|Object} collection The collection to shuffle. | ||
| 4030 |      * @returns {Array} Returns the new shuffled array. | ||
| 4031 | */ | ||
| 4032 |     function baseShuffle(collection) { | ||
| 4033 | return shuffleSelf(values(collection)); | ||
| 4034 | } | ||
| 4035 | |||
| 4036 | /** | ||
| 4037 | * The base implementation of `_.slice` without an iteratee call guard. | ||
| 4038 | * | ||
| 4039 | * @private | ||
| 4040 |      * @param {Array} array The array to slice. | ||
| 4041 |      * @param {number} [start=0] The start position. | ||
| 4042 |      * @param {number} [end=array.length] The end position. | ||
| 4043 |      * @returns {Array} Returns the slice of `array`. | ||
| 4044 | */ | ||
| 4045 |     function baseSlice(array, start, end) { | ||
| 4046 | var index = -1, | ||
| 4047 | length = array.length; | ||
| 4048 | |||
| 4049 |       if (start < 0) { | ||
| 4050 | start = -start > length ? 0 : (length + start); | ||
| 4051 | } | ||
| 4052 | end = end > length ? length : end; | ||
| 4053 |       if (end < 0) { | ||
| 4054 | end += length; | ||
| 4055 | } | ||
| 4056 | length = start > end ? 0 : ((end - start) >>> 0); | ||
| 4057 | start >>>= 0; | ||
| 4058 | |||
| 4059 | var result = Array(length); | ||
| 4060 |       while (++index < length) { | ||
| 4061 | result[index] = array[index + start]; | ||
| 4062 | } | ||
| 4063 | return result; | ||
| 4064 | } | ||
| 4065 | |||
| 4066 | /** | ||
| 4067 | * The base implementation of `_.some` without support for iteratee shorthands. | ||
| 4068 | * | ||
| 4069 | * @private | ||
| 4070 |      * @param {Array|Object} collection The collection to iterate over. | ||
| 4071 |      * @param {Function} predicate The function invoked per iteration. | ||
| 4072 |      * @returns {boolean} Returns `true` if any element passes the predicate check, | ||
| 4073 | * else `false`. | ||
| 4074 | */ | ||
| 4075 |     function baseSome(collection, predicate) { | ||
| 4076 | var result; | ||
| 4077 | |||
| 4078 |       baseEach(collection, function(value, index, collection) { | ||
| 4079 | result = predicate(value, index, collection); | ||
| 4080 | return !result; | ||
| 4081 | }); | ||
| 4082 | return !!result; | ||
| 4083 | } | ||
| 4084 | |||
| 4085 | /** | ||
| 4086 | * The base implementation of `_.sortedIndex` and `_.sortedLastIndex` which | ||
| 4087 | * performs a binary search of `array` to determine the index at which `value` | ||
| 4088 | * should be inserted into `array` in order to maintain its sort order. | ||
| 4089 | * | ||
| 4090 | * @private | ||
| 4091 |      * @param {Array} array The sorted array to inspect. | ||
| 4092 |      * @param {*} value The value to evaluate. | ||
| 4093 |      * @param {boolean} [retHighest] Specify returning the highest qualified index. | ||
| 4094 |      * @returns {number} Returns the index at which `value` should be inserted | ||
| 4095 | * into `array`. | ||
| 4096 | */ | ||
| 4097 |     function baseSortedIndex(array, value, retHighest) { | ||
| 4098 | var low = 0, | ||
| 4099 | high = array == null ? low : array.length; | ||
| 4100 | |||
| 4101 |       if (typeof value == 'number' && value === value && high <= HALF_MAX_ARRAY_LENGTH) { | ||
| 4102 |         while (low < high) { | ||
| 4103 | var mid = (low + high) >>> 1, | ||
| 4104 | computed = array[mid]; | ||
| 4105 | |||
| 4106 | if (computed !== null && !isSymbol(computed) && | ||
| 4107 |               (retHighest ? (computed <= value) : (computed < value))) { | ||
| 4108 | low = mid + 1; | ||
| 4109 |           } else { | ||
| 4110 | high = mid; | ||
| 4111 | } | ||
| 4112 | } | ||
| 4113 | return high; | ||
| 4114 | } | ||
| 4115 | return baseSortedIndexBy(array, value, identity, retHighest); | ||
| 4116 | } | ||
| 4117 | |||
| 4118 | /** | ||
| 4119 | * The base implementation of `_.sortedIndexBy` and `_.sortedLastIndexBy` | ||
| 4120 | * which invokes `iteratee` for `value` and each element of `array` to compute | ||
| 4121 | * their sort ranking. The iteratee is invoked with one argument; (value). | ||
| 4122 | * | ||
| 4123 | * @private | ||
| 4124 |      * @param {Array} array The sorted array to inspect. | ||
| 4125 |      * @param {*} value The value to evaluate. | ||
| 4126 |      * @param {Function} iteratee The iteratee invoked per element. | ||
| 4127 |      * @param {boolean} [retHighest] Specify returning the highest qualified index. | ||
| 4128 |      * @returns {number} Returns the index at which `value` should be inserted | ||
| 4129 | * into `array`. | ||
| 4130 | */ | ||
| 4131 |     function baseSortedIndexBy(array, value, iteratee, retHighest) { | ||
| 4132 | value = iteratee(value); | ||
| 4133 | |||
| 4134 | var low = 0, | ||
| 4135 | high = array == null ? 0 : array.length, | ||
| 4136 | valIsNaN = value !== value, | ||
| 4137 | valIsNull = value === null, | ||
| 4138 | valIsSymbol = isSymbol(value), | ||
| 4139 | valIsUndefined = value === undefined; | ||
| 4140 | |||
| 4141 |       while (low < high) { | ||
| 4142 | var mid = nativeFloor((low + high) / 2), | ||
| 4143 | computed = iteratee(array[mid]), | ||
| 4144 | othIsDefined = computed !== undefined, | ||
| 4145 | othIsNull = computed === null, | ||
| 4146 | othIsReflexive = computed === computed, | ||
| 4147 | othIsSymbol = isSymbol(computed); | ||
| 4148 | |||
| 4149 |         if (valIsNaN) { | ||
| 4150 | var setLow = retHighest || othIsReflexive; | ||
| 4151 |         } else if (valIsUndefined) { | ||
| 4152 | setLow = othIsReflexive && (retHighest || othIsDefined); | ||
| 4153 |         } else if (valIsNull) { | ||
| 4154 | setLow = othIsReflexive && othIsDefined && (retHighest || !othIsNull); | ||
| 4155 |         } else if (valIsSymbol) { | ||
| 4156 | setLow = othIsReflexive && othIsDefined && !othIsNull && (retHighest || !othIsSymbol); | ||
| 4157 |         } else if (othIsNull || othIsSymbol) { | ||
| 4158 | setLow = false; | ||
| 4159 |         } else { | ||
| 4160 | setLow = retHighest ? (computed <= value) : (computed < value); | ||
| 4161 | } | ||
| 4162 |         if (setLow) { | ||
| 4163 | low = mid + 1; | ||
| 4164 |         } else { | ||
| 4165 | high = mid; | ||
| 4166 | } | ||
| 4167 | } | ||
| 4168 | return nativeMin(high, MAX_ARRAY_INDEX); | ||
| 4169 | } | ||
| 4170 | |||
| 4171 | /** | ||
| 4172 | * The base implementation of `_.sortedUniq` and `_.sortedUniqBy` without | ||
| 4173 | * support for iteratee shorthands. | ||
| 4174 | * | ||
| 4175 | * @private | ||
| 4176 |      * @param {Array} array The array to inspect. | ||
| 4177 |      * @param {Function} [iteratee] The iteratee invoked per element. | ||
| 4178 |      * @returns {Array} Returns the new duplicate free array. | ||
| 4179 | */ | ||
| 4180 |     function baseSortedUniq(array, iteratee) { | ||
| 4181 | var index = -1, | ||
| 4182 | length = array.length, | ||
| 4183 | resIndex = 0, | ||
| 4184 | result = []; | ||
| 4185 | |||
| 4186 |       while (++index < length) { | ||
| 4187 | var value = array[index], | ||
| 4188 | computed = iteratee ? iteratee(value) : value; | ||
| 4189 | |||
| 4190 |         if (!index || !eq(computed, seen)) { | ||
| 4191 | var seen = computed; | ||
| 4192 | result[resIndex++] = value === 0 ? 0 : value; | ||
| 4193 | } | ||
| 4194 | } | ||
| 4195 | return result; | ||
| 4196 | } | ||
| 4197 | |||
| 4198 | /** | ||
| 4199 | * The base implementation of `_.toNumber` which doesn't ensure correct | ||
| 4200 | * conversions of binary, hexadecimal, or octal string values. | ||
| 4201 | * | ||
| 4202 | * @private | ||
| 4203 |      * @param {*} value The value to process. | ||
| 4204 |      * @returns {number} Returns the number. | ||
| 4205 | */ | ||
| 4206 |     function baseToNumber(value) { | ||
| 4207 |       if (typeof value == 'number') { | ||
| 4208 | return value; | ||
| 4209 | } | ||
| 4210 |       if (isSymbol(value)) { | ||
| 4211 | return NAN; | ||
| 4212 | } | ||
| 4213 | return +value; | ||
| 4214 | } | ||
| 4215 | |||
| 4216 | /** | ||
| 4217 | * The base implementation of `_.toString` which doesn't convert nullish | ||
| 4218 | * values to empty strings. | ||
| 4219 | * | ||
| 4220 | * @private | ||
| 4221 |      * @param {*} value The value to process. | ||
| 4222 |      * @returns {string} Returns the string. | ||
| 4223 | */ | ||
| 4224 |     function baseToString(value) { | ||
| 4225 | // Exit early for strings to avoid a performance hit in some environments. | ||
| 4226 |       if (typeof value == 'string') { | ||
| 4227 | return value; | ||
| 4228 | } | ||
| 4229 |       if (isArray(value)) { | ||
| 4230 | // Recursively convert values (susceptible to call stack limits). | ||
| 4231 | return arrayMap(value, baseToString) + ''; | ||
| 4232 | } | ||
| 4233 |       if (isSymbol(value)) { | ||
| 4234 | return symbolToString ? symbolToString.call(value) : ''; | ||
| 4235 | } | ||
| 4236 | var result = (value + ''); | ||
| 4237 | return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; | ||
| 4238 | } | ||
| 4239 | |||
| 4240 | /** | ||
| 4241 | * The base implementation of `_.uniqBy` without support for iteratee shorthands. | ||
| 4242 | * | ||
| 4243 | * @private | ||
| 4244 |      * @param {Array} array The array to inspect. | ||
| 4245 |      * @param {Function} [iteratee] The iteratee invoked per element. | ||
| 4246 |      * @param {Function} [comparator] The comparator invoked per element. | ||
| 4247 |      * @returns {Array} Returns the new duplicate free array. | ||
| 4248 | */ | ||
| 4249 |     function baseUniq(array, iteratee, comparator) { | ||
| 4250 | var index = -1, | ||
| 4251 | includes = arrayIncludes, | ||
| 4252 | length = array.length, | ||
| 4253 | isCommon = true, | ||
| 4254 | result = [], | ||
| 4255 | seen = result; | ||
| 4256 | |||
| 4257 |       if (comparator) { | ||
| 4258 | isCommon = false; | ||
| 4259 | includes = arrayIncludesWith; | ||
| 4260 | } | ||
| 4261 |       else if (length >= LARGE_ARRAY_SIZE) { | ||
| 4262 | var set = iteratee ? null : createSet(array); | ||
| 4263 |         if (set) { | ||
| 4264 | return setToArray(set); | ||
| 4265 | } | ||
| 4266 | isCommon = false; | ||
| 4267 | includes = cacheHas; | ||
| 4268 | seen = new SetCache; | ||
| 4269 | } | ||
| 4270 |       else { | ||
| 4271 | seen = iteratee ? [] : result; | ||
| 4272 | } | ||
| 4273 | outer: | ||
| 4274 |       while (++index < length) { | ||
| 4275 | var value = array[index], | ||
| 4276 | computed = iteratee ? iteratee(value) : value; | ||
| 4277 | |||
| 4278 | value = (comparator || value !== 0) ? value : 0; | ||
| 4279 |         if (isCommon && computed === computed) { | ||
| 4280 | var seenIndex = seen.length; | ||
| 4281 |           while (seenIndex--) { | ||
| 4282 |             if (seen[seenIndex] === computed) { | ||
| 4283 | continue outer; | ||
| 4284 | } | ||
| 4285 | } | ||
| 4286 |           if (iteratee) { | ||
| 4287 | seen.push(computed); | ||
| 4288 | } | ||
| 4289 | result.push(value); | ||
| 4290 | } | ||
| 4291 |         else if (!includes(seen, computed, comparator)) { | ||
| 4292 |           if (seen !== result) { | ||
| 4293 | seen.push(computed); | ||
| 4294 | } | ||
| 4295 | result.push(value); | ||
| 4296 | } | ||
| 4297 | } | ||
| 4298 | return result; | ||
| 4299 | } | ||
| 4300 | |||
| 4301 | /** | ||
| 4302 | * The base implementation of `_.unset`. | ||
| 4303 | * | ||
| 4304 | * @private | ||
| 4305 |      * @param {Object} object The object to modify. | ||
| 4306 |      * @param {Array|string} path The property path to unset. | ||
| 4307 |      * @returns {boolean} Returns `true` if the property is deleted, else `false`. | ||
| 4308 | */ | ||
| 4309 |     function baseUnset(object, path) { | ||
| 4310 | path = castPath(path, object); | ||
| 4311 | object = parent(object, path); | ||
| 4312 | return object == null || delete object[toKey(last(path))]; | ||
| 4313 | } | ||
| 4314 | |||
| 4315 | /** | ||
| 4316 | * The base implementation of `_.update`. | ||
| 4317 | * | ||
| 4318 | * @private | ||
| 4319 |      * @param {Object} object The object to modify. | ||
| 4320 |      * @param {Array|string} path The path of the property to update. | ||
| 4321 |      * @param {Function} updater The function to produce the updated value. | ||
| 4322 |      * @param {Function} [customizer] The function to customize path creation. | ||
| 4323 |      * @returns {Object} Returns `object`. | ||
| 4324 | */ | ||
| 4325 |     function baseUpdate(object, path, updater, customizer) { | ||
| 4326 | return baseSet(object, path, updater(baseGet(object, path)), customizer); | ||
| 4327 | } | ||
| 4328 | |||
| 4329 | /** | ||
| 4330 | * The base implementation of methods like `_.dropWhile` and `_.takeWhile` | ||
| 4331 | * without support for iteratee shorthands. | ||
| 4332 | * | ||
| 4333 | * @private | ||
| 4334 |      * @param {Array} array The array to query. | ||
| 4335 |      * @param {Function} predicate The function invoked per iteration. | ||
| 4336 |      * @param {boolean} [isDrop] Specify dropping elements instead of taking them. | ||
| 4337 |      * @param {boolean} [fromRight] Specify iterating from right to left. | ||
| 4338 |      * @returns {Array} Returns the slice of `array`. | ||
| 4339 | */ | ||
| 4340 |     function baseWhile(array, predicate, isDrop, fromRight) { | ||
| 4341 | var length = array.length, | ||
| 4342 | index = fromRight ? length : -1; | ||
| 4343 | |||
| 4344 | while ((fromRight ? index-- : ++index < length) && | ||
| 4345 |         predicate(array[index], index, array)) {} | ||
| 4346 | |||
| 4347 | return isDrop | ||
| 4348 | ? baseSlice(array, (fromRight ? 0 : index), (fromRight ? index + 1 : length)) | ||
| 4349 | : baseSlice(array, (fromRight ? index + 1 : 0), (fromRight ? length : index)); | ||
| 4350 | } | ||
| 4351 | |||
| 4352 | /** | ||
| 4353 | * The base implementation of `wrapperValue` which returns the result of | ||
| 4354 | * performing a sequence of actions on the unwrapped `value`, where each | ||
| 4355 | * successive action is supplied the return value of the previous. | ||
| 4356 | * | ||
| 4357 | * @private | ||
| 4358 |      * @param {*} value The unwrapped value. | ||
| 4359 |      * @param {Array} actions Actions to perform to resolve the unwrapped value. | ||
| 4360 |      * @returns {*} Returns the resolved value. | ||
| 4361 | */ | ||
| 4362 |     function baseWrapperValue(value, actions) { | ||
| 4363 | var result = value; | ||
| 4364 |       if (result instanceof LazyWrapper) { | ||
| 4365 | result = result.value(); | ||
| 4366 | } | ||
| 4367 |       return arrayReduce(actions, function(result, action) { | ||
| 4368 | return action.func.apply(action.thisArg, arrayPush([result], action.args)); | ||
| 4369 | }, result); | ||
| 4370 | } | ||
| 4371 | |||
| 4372 | /** | ||
| 4373 | * The base implementation of methods like `_.xor`, without support for | ||
| 4374 | * iteratee shorthands, that accepts an array of arrays to inspect. | ||
| 4375 | * | ||
| 4376 | * @private | ||
| 4377 |      * @param {Array} arrays The arrays to inspect. | ||
| 4378 |      * @param {Function} [iteratee] The iteratee invoked per element. | ||
| 4379 |      * @param {Function} [comparator] The comparator invoked per element. | ||
| 4380 |      * @returns {Array} Returns the new array of values. | ||
| 4381 | */ | ||
| 4382 |     function baseXor(arrays, iteratee, comparator) { | ||
| 4383 | var length = arrays.length; | ||
| 4384 |       if (length < 2) { | ||
| 4385 | return length ? baseUniq(arrays[0]) : []; | ||
| 4386 | } | ||
| 4387 | var index = -1, | ||
| 4388 | result = Array(length); | ||
| 4389 | |||
| 4390 |       while (++index < length) { | ||
| 4391 | var array = arrays[index], | ||
| 4392 | othIndex = -1; | ||
| 4393 | |||
| 4394 |         while (++othIndex < length) { | ||
| 4395 |           if (othIndex != index) { | ||
| 4396 | result[index] = baseDifference(result[index] || array, arrays[othIndex], iteratee, comparator); | ||
| 4397 | } | ||
| 4398 | } | ||
| 4399 | } | ||
| 4400 | return baseUniq(baseFlatten(result, 1), iteratee, comparator); | ||
| 4401 | } | ||
| 4402 | |||
| 4403 | /** | ||
| 4404 | * This base implementation of `_.zipObject` which assigns values using `assignFunc`. | ||
| 4405 | * | ||
| 4406 | * @private | ||
| 4407 |      * @param {Array} props The property identifiers. | ||
| 4408 |      * @param {Array} values The property values. | ||
| 4409 |      * @param {Function} assignFunc The function to assign values. | ||
| 4410 |      * @returns {Object} Returns the new object. | ||
| 4411 | */ | ||
| 4412 |     function baseZipObject(props, values, assignFunc) { | ||
| 4413 | var index = -1, | ||
| 4414 | length = props.length, | ||
| 4415 | valsLength = values.length, | ||
| 4416 |           result = {}; | ||
| 4417 | |||
| 4418 |       while (++index < length) { | ||
| 4419 | var value = index < valsLength ? values[index] : undefined; | ||
| 4420 | assignFunc(result, props[index], value); | ||
| 4421 | } | ||
| 4422 | return result; | ||
| 4423 | } | ||
| 4424 | |||
| 4425 | /** | ||
| 4426 | * Casts `value` to an empty array if it's not an array like object. | ||
| 4427 | * | ||
| 4428 | * @private | ||
| 4429 |      * @param {*} value The value to inspect. | ||
| 4430 |      * @returns {Array|Object} Returns the cast array-like object. | ||
| 4431 | */ | ||
| 4432 |     function castArrayLikeObject(value) { | ||
| 4433 | return isArrayLikeObject(value) ? value : []; | ||
| 4434 | } | ||
| 4435 | |||
| 4436 | /** | ||
| 4437 | * Casts `value` to `identity` if it's not a function. | ||
| 4438 | * | ||
| 4439 | * @private | ||
| 4440 |      * @param {*} value The value to inspect. | ||
| 4441 |      * @returns {Function} Returns cast function. | ||
| 4442 | */ | ||
| 4443 |     function castFunction(value) { | ||
| 4444 | return typeof value == 'function' ? value : identity; | ||
| 4445 | } | ||
| 4446 | |||
| 4447 | /** | ||
| 4448 | * Casts `value` to a path array if it's not one. | ||
| 4449 | * | ||
| 4450 | * @private | ||
| 4451 |      * @param {*} value The value to inspect. | ||
| 4452 |      * @param {Object} [object] The object to query keys on. | ||
| 4453 |      * @returns {Array} Returns the cast property path array. | ||
| 4454 | */ | ||
| 4455 |     function castPath(value, object) { | ||
| 4456 |       if (isArray(value)) { | ||
| 4457 | return value; | ||
| 4458 | } | ||
| 4459 | return isKey(value, object) ? [value] : stringToPath(toString(value)); | ||
| 4460 | } | ||
| 4461 | |||
| 4462 | /** | ||
| 4463 | * A `baseRest` alias which can be replaced with `identity` by module | ||
| 4464 | * replacement plugins. | ||
| 4465 | * | ||
| 4466 | * @private | ||
| 4467 |      * @type {Function} | ||
| 4468 |      * @param {Function} func The function to apply a rest parameter to. | ||
| 4469 |      * @returns {Function} Returns the new function. | ||
| 4470 | */ | ||
| 4471 | var castRest = baseRest; | ||
| 4472 | |||
| 4473 | /** | ||
| 4474 | * Casts `array` to a slice if it's needed. | ||
| 4475 | * | ||
| 4476 | * @private | ||
| 4477 |      * @param {Array} array The array to inspect. | ||
| 4478 |      * @param {number} start The start position. | ||
| 4479 |      * @param {number} [end=array.length] The end position. | ||
| 4480 |      * @returns {Array} Returns the cast slice. | ||
| 4481 | */ | ||
| 4482 |     function castSlice(array, start, end) { | ||
| 4483 | var length = array.length; | ||
| 4484 | end = end === undefined ? length : end; | ||
| 4485 | return (!start && end >= length) ? array : baseSlice(array, start, end); | ||
| 4486 | } | ||
| 4487 | |||
| 4488 | /** | ||
| 4489 | * A simple wrapper around the global [`clearTimeout`](https://mdn.io/clearTimeout). | ||
| 4490 | * | ||
| 4491 | * @private | ||
| 4492 |      * @param {number|Object} id The timer id or timeout object of the timer to clear. | ||
| 4493 | */ | ||
| 4494 |     var clearTimeout = ctxClearTimeout || function(id) { | ||
| 4495 | return root.clearTimeout(id); | ||
| 4496 | }; | ||
| 4497 | |||
| 4498 | /** | ||
| 4499 | * Creates a clone of `buffer`. | ||
| 4500 | * | ||
| 4501 | * @private | ||
| 4502 |      * @param {Buffer} buffer The buffer to clone. | ||
| 4503 |      * @param {boolean} [isDeep] Specify a deep clone. | ||
| 4504 |      * @returns {Buffer} Returns the cloned buffer. | ||
| 4505 | */ | ||
| 4506 |     function cloneBuffer(buffer, isDeep) { | ||
| 4507 |       if (isDeep) { | ||
| 4508 | return buffer.slice(); | ||
| 4509 | } | ||
| 4510 | var length = buffer.length, | ||
| 4511 | result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length); | ||
| 4512 | |||
| 4513 | buffer.copy(result); | ||
| 4514 | return result; | ||
| 4515 | } | ||
| 4516 | |||
| 4517 | /** | ||
| 4518 | * Creates a clone of `arrayBuffer`. | ||
| 4519 | * | ||
| 4520 | * @private | ||
| 4521 |      * @param {ArrayBuffer} arrayBuffer The array buffer to clone. | ||
| 4522 |      * @returns {ArrayBuffer} Returns the cloned array buffer. | ||
| 4523 | */ | ||
| 4524 |     function cloneArrayBuffer(arrayBuffer) { | ||
| 4525 | var result = new arrayBuffer.constructor(arrayBuffer.byteLength); | ||
| 4526 | new Uint8Array(result).set(new Uint8Array(arrayBuffer)); | ||
| 4527 | return result; | ||
| 4528 | } | ||
| 4529 | |||
| 4530 | /** | ||
| 4531 | * Creates a clone of `dataView`. | ||
| 4532 | * | ||
| 4533 | * @private | ||
| 4534 |      * @param {Object} dataView The data view to clone. | ||
| 4535 |      * @param {boolean} [isDeep] Specify a deep clone. | ||
| 4536 |      * @returns {Object} Returns the cloned data view. | ||
| 4537 | */ | ||
| 4538 |     function cloneDataView(dataView, isDeep) { | ||
| 4539 | var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer; | ||
| 4540 | return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength); | ||
| 4541 | } | ||
| 4542 | |||
| 4543 | /** | ||
| 4544 | * Creates a clone of `regexp`. | ||
| 4545 | * | ||
| 4546 | * @private | ||
| 4547 |      * @param {Object} regexp The regexp to clone. | ||
| 4548 |      * @returns {Object} Returns the cloned regexp. | ||
| 4549 | */ | ||
| 4550 |     function cloneRegExp(regexp) { | ||
| 4551 | var result = new regexp.constructor(regexp.source, reFlags.exec(regexp)); | ||
| 4552 | result.lastIndex = regexp.lastIndex; | ||
| 4553 | return result; | ||
| 4554 | } | ||
| 4555 | |||
| 4556 | /** | ||
| 4557 | * Creates a clone of the `symbol` object. | ||
| 4558 | * | ||
| 4559 | * @private | ||
| 4560 |      * @param {Object} symbol The symbol object to clone. | ||
| 4561 |      * @returns {Object} Returns the cloned symbol object. | ||
| 4562 | */ | ||
| 4563 |     function cloneSymbol(symbol) { | ||
| 4564 |       return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {}; | ||
| 4565 | } | ||
| 4566 | |||
| 4567 | /** | ||
| 4568 | * Creates a clone of `typedArray`. | ||
| 4569 | * | ||
| 4570 | * @private | ||
| 4571 |      * @param {Object} typedArray The typed array to clone. | ||
| 4572 |      * @param {boolean} [isDeep] Specify a deep clone. | ||
| 4573 |      * @returns {Object} Returns the cloned typed array. | ||
| 4574 | */ | ||
| 4575 |     function cloneTypedArray(typedArray, isDeep) { | ||
| 4576 | var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer; | ||
| 4577 | return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length); | ||
| 4578 | } | ||
| 4579 | |||
| 4580 | /** | ||
| 4581 | * Compares values to sort them in ascending order. | ||
| 4582 | * | ||
| 4583 | * @private | ||
| 4584 |      * @param {*} value The value to compare. | ||
| 4585 |      * @param {*} other The other value to compare. | ||
| 4586 |      * @returns {number} Returns the sort order indicator for `value`. | ||
| 4587 | */ | ||
| 4588 |     function compareAscending(value, other) { | ||
| 4589 |       if (value !== other) { | ||
| 4590 | var valIsDefined = value !== undefined, | ||
| 4591 | valIsNull = value === null, | ||
| 4592 | valIsReflexive = value === value, | ||
| 4593 | valIsSymbol = isSymbol(value); | ||
| 4594 | |||
| 4595 | var othIsDefined = other !== undefined, | ||
| 4596 | othIsNull = other === null, | ||
| 4597 | othIsReflexive = other === other, | ||
| 4598 | othIsSymbol = isSymbol(other); | ||
| 4599 | |||
| 4600 | if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) || | ||
| 4601 | (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) || | ||
| 4602 | (valIsNull && othIsDefined && othIsReflexive) || | ||
| 4603 | (!valIsDefined && othIsReflexive) || | ||
| 4604 |             !valIsReflexive) { | ||
| 4605 | return 1; | ||
| 4606 | } | ||
| 4607 | if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) || | ||
| 4608 | (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) || | ||
| 4609 | (othIsNull && valIsDefined && valIsReflexive) || | ||
| 4610 | (!othIsDefined && valIsReflexive) || | ||
| 4611 |             !othIsReflexive) { | ||
| 4612 | return -1; | ||
| 4613 | } | ||
| 4614 | } | ||
| 4615 | return 0; | ||
| 4616 | } | ||
| 4617 | |||
| 4618 | /** | ||
| 4619 | * Used by `_.orderBy` to compare multiple properties of a value to another | ||
| 4620 | * and stable sort them. | ||
| 4621 | * | ||
| 4622 | * If `orders` is unspecified, all values are sorted in ascending order. Otherwise, | ||
| 4623 | * specify an order of "desc" for descending or "asc" for ascending sort order | ||
| 4624 | * of corresponding values. | ||
| 4625 | * | ||
| 4626 | * @private | ||
| 4627 |      * @param {Object} object The object to compare. | ||
| 4628 |      * @param {Object} other The other object to compare. | ||
| 4629 |      * @param {boolean[]|string[]} orders The order to sort by for each property. | ||
| 4630 |      * @returns {number} Returns the sort order indicator for `object`. | ||
| 4631 | */ | ||
| 4632 |     function compareMultiple(object, other, orders) { | ||
| 4633 | var index = -1, | ||
| 4634 | objCriteria = object.criteria, | ||
| 4635 | othCriteria = other.criteria, | ||
| 4636 | length = objCriteria.length, | ||
| 4637 | ordersLength = orders.length; | ||
| 4638 | |||
| 4639 |       while (++index < length) { | ||
| 4640 | var result = compareAscending(objCriteria[index], othCriteria[index]); | ||
| 4641 |         if (result) { | ||
| 4642 |           if (index >= ordersLength) { | ||
| 4643 | return result; | ||
| 4644 | } | ||
| 4645 | var order = orders[index]; | ||
| 4646 | return result * (order == 'desc' ? -1 : 1); | ||
| 4647 | } | ||
| 4648 | } | ||
| 4649 | // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications | ||
| 4650 | // that causes it, under certain circumstances, to provide the same value for | ||
| 4651 | // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247 | ||
| 4652 | // for more details. | ||
| 4653 | // | ||
| 4654 | // This also ensures a stable sort in V8 and other engines. | ||
| 4655 | // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details. | ||
| 4656 | return object.index - other.index; | ||
| 4657 | } | ||
| 4658 | |||
| 4659 | /** | ||
| 4660 | * Creates an array that is the composition of partially applied arguments, | ||
| 4661 | * placeholders, and provided arguments into a single array of arguments. | ||
| 4662 | * | ||
| 4663 | * @private | ||
| 4664 |      * @param {Array} args The provided arguments. | ||
| 4665 |      * @param {Array} partials The arguments to prepend to those provided. | ||
| 4666 |      * @param {Array} holders The `partials` placeholder indexes. | ||
| 4667 |      * @params {boolean} [isCurried] Specify composing for a curried function. | ||
| 4668 |      * @returns {Array} Returns the new array of composed arguments. | ||
| 4669 | */ | ||
| 4670 |     function composeArgs(args, partials, holders, isCurried) { | ||
| 4671 | var argsIndex = -1, | ||
| 4672 | argsLength = args.length, | ||
| 4673 | holdersLength = holders.length, | ||
| 4674 | leftIndex = -1, | ||
| 4675 | leftLength = partials.length, | ||
| 4676 | rangeLength = nativeMax(argsLength - holdersLength, 0), | ||
| 4677 | result = Array(leftLength + rangeLength), | ||
| 4678 | isUncurried = !isCurried; | ||
| 4679 | |||
| 4680 |       while (++leftIndex < leftLength) { | ||
| 4681 | result[leftIndex] = partials[leftIndex]; | ||
| 4682 | } | ||
| 4683 |       while (++argsIndex < holdersLength) { | ||
| 4684 |         if (isUncurried || argsIndex < argsLength) { | ||
| 4685 | result[holders[argsIndex]] = args[argsIndex]; | ||
| 4686 | } | ||
| 4687 | } | ||
| 4688 |       while (rangeLength--) { | ||
| 4689 | result[leftIndex++] = args[argsIndex++]; | ||
| 4690 | } | ||
| 4691 | return result; | ||
| 4692 | } | ||
| 4693 | |||
| 4694 | /** | ||
| 4695 | * This function is like `composeArgs` except that the arguments composition | ||
| 4696 | * is tailored for `_.partialRight`. | ||
| 4697 | * | ||
| 4698 | * @private | ||
| 4699 |      * @param {Array} args The provided arguments. | ||
| 4700 |      * @param {Array} partials The arguments to append to those provided. | ||
| 4701 |      * @param {Array} holders The `partials` placeholder indexes. | ||
| 4702 |      * @params {boolean} [isCurried] Specify composing for a curried function. | ||
| 4703 |      * @returns {Array} Returns the new array of composed arguments. | ||
| 4704 | */ | ||
| 4705 |     function composeArgsRight(args, partials, holders, isCurried) { | ||
| 4706 | var argsIndex = -1, | ||
| 4707 | argsLength = args.length, | ||
| 4708 | holdersIndex = -1, | ||
| 4709 | holdersLength = holders.length, | ||
| 4710 | rightIndex = -1, | ||
| 4711 | rightLength = partials.length, | ||
| 4712 | rangeLength = nativeMax(argsLength - holdersLength, 0), | ||
| 4713 | result = Array(rangeLength + rightLength), | ||
| 4714 | isUncurried = !isCurried; | ||
| 4715 | |||
| 4716 |       while (++argsIndex < rangeLength) { | ||
| 4717 | result[argsIndex] = args[argsIndex]; | ||
| 4718 | } | ||
| 4719 | var offset = argsIndex; | ||
| 4720 |       while (++rightIndex < rightLength) { | ||
| 4721 | result[offset + rightIndex] = partials[rightIndex]; | ||
| 4722 | } | ||
| 4723 |       while (++holdersIndex < holdersLength) { | ||
| 4724 |         if (isUncurried || argsIndex < argsLength) { | ||
| 4725 | result[offset + holders[holdersIndex]] = args[argsIndex++]; | ||
| 4726 | } | ||
| 4727 | } | ||
| 4728 | return result; | ||
| 4729 | } | ||
| 4730 | |||
| 4731 | /** | ||
| 4732 | * Copies the values of `source` to `array`. | ||
| 4733 | * | ||
| 4734 | * @private | ||
| 4735 |      * @param {Array} source The array to copy values from. | ||
| 4736 |      * @param {Array} [array=[]] The array to copy values to. | ||
| 4737 |      * @returns {Array} Returns `array`. | ||
| 4738 | */ | ||
| 4739 |     function copyArray(source, array) { | ||
| 4740 | var index = -1, | ||
| 4741 | length = source.length; | ||
| 4742 | |||
| 4743 | array || (array = Array(length)); | ||
| 4744 |       while (++index < length) { | ||
| 4745 | array[index] = source[index]; | ||
| 4746 | } | ||
| 4747 | return array; | ||
| 4748 | } | ||
| 4749 | |||
| 4750 | /** | ||
| 4751 | * Copies properties of `source` to `object`. | ||
| 4752 | * | ||
| 4753 | * @private | ||
| 4754 |      * @param {Object} source The object to copy properties from. | ||
| 4755 |      * @param {Array} props The property identifiers to copy. | ||
| 4756 |      * @param {Object} [object={}] The object to copy properties to. | ||
| 4757 |      * @param {Function} [customizer] The function to customize copied values. | ||
| 4758 |      * @returns {Object} Returns `object`. | ||
| 4759 | */ | ||
| 4760 |     function copyObject(source, props, object, customizer) { | ||
| 4761 | var isNew = !object; | ||
| 4762 |       object || (object = {}); | ||
| 4763 | |||
| 4764 | var index = -1, | ||
| 4765 | length = props.length; | ||
| 4766 | |||
| 4767 |       while (++index < length) { | ||
| 4768 | var key = props[index]; | ||
| 4769 | |||
| 4770 | var newValue = customizer | ||
| 4771 | ? customizer(object[key], source[key], key, object, source) | ||
| 4772 | : undefined; | ||
| 4773 | |||
| 4774 |         if (newValue === undefined) { | ||
| 4775 | newValue = source[key]; | ||
| 4776 | } | ||
| 4777 |         if (isNew) { | ||
| 4778 | baseAssignValue(object, key, newValue); | ||
| 4779 |         } else { | ||
| 4780 | assignValue(object, key, newValue); | ||
| 4781 | } | ||
| 4782 | } | ||
| 4783 | return object; | ||
| 4784 | } | ||
| 4785 | |||
| 4786 | /** | ||
| 4787 | * Copies own symbols of `source` to `object`. | ||
| 4788 | * | ||
| 4789 | * @private | ||
| 4790 |      * @param {Object} source The object to copy symbols from. | ||
| 4791 |      * @param {Object} [object={}] The object to copy symbols to. | ||
| 4792 |      * @returns {Object} Returns `object`. | ||
| 4793 | */ | ||
| 4794 |     function copySymbols(source, object) { | ||
| 4795 | return copyObject(source, getSymbols(source), object); | ||
| 4796 | } | ||
| 4797 | |||
| 4798 | /** | ||
| 4799 | * Copies own and inherited symbols of `source` to `object`. | ||
| 4800 | * | ||
| 4801 | * @private | ||
| 4802 |      * @param {Object} source The object to copy symbols from. | ||
| 4803 |      * @param {Object} [object={}] The object to copy symbols to. | ||
| 4804 |      * @returns {Object} Returns `object`. | ||
| 4805 | */ | ||
| 4806 |     function copySymbolsIn(source, object) { | ||
| 4807 | return copyObject(source, getSymbolsIn(source), object); | ||
| 4808 | } | ||
| 4809 | |||
| 4810 | /** | ||
| 4811 | * Creates a function like `_.groupBy`. | ||
| 4812 | * | ||
| 4813 | * @private | ||
| 4814 |      * @param {Function} setter The function to set accumulator values. | ||
| 4815 |      * @param {Function} [initializer] The accumulator object initializer. | ||
| 4816 |      * @returns {Function} Returns the new aggregator function. | ||
| 4817 | */ | ||
| 4818 |     function createAggregator(setter, initializer) { | ||
| 4819 |       return function(collection, iteratee) { | ||
| 4820 | var func = isArray(collection) ? arrayAggregator : baseAggregator, | ||
| 4821 |             accumulator = initializer ? initializer() : {}; | ||
| 4822 | |||
| 4823 | return func(collection, setter, getIteratee(iteratee, 2), accumulator); | ||
| 4824 | }; | ||
| 4825 | } | ||
| 4826 | |||
| 4827 | /** | ||
| 4828 | * Creates a function like `_.assign`. | ||
| 4829 | * | ||
| 4830 | * @private | ||
| 4831 |      * @param {Function} assigner The function to assign values. | ||
| 4832 |      * @returns {Function} Returns the new assigner function. | ||
| 4833 | */ | ||
| 4834 |     function createAssigner(assigner) { | ||
| 4835 |       return baseRest(function(object, sources) { | ||
| 4836 | var index = -1, | ||
| 4837 | length = sources.length, | ||
| 4838 | customizer = length > 1 ? sources[length - 1] : undefined, | ||
| 4839 | guard = length > 2 ? sources[2] : undefined; | ||
| 4840 | |||
| 4841 | customizer = (assigner.length > 3 && typeof customizer == 'function') | ||
| 4842 | ? (length--, customizer) | ||
| 4843 | : undefined; | ||
| 4844 | |||
| 4845 |         if (guard && isIterateeCall(sources[0], sources[1], guard)) { | ||
| 4846 | customizer = length < 3 ? undefined : customizer; | ||
| 4847 | length = 1; | ||
| 4848 | } | ||
| 4849 | object = Object(object); | ||
| 4850 |         while (++index < length) { | ||
| 4851 | var source = sources[index]; | ||
| 4852 |           if (source) { | ||
| 4853 | assigner(object, source, index, customizer); | ||
| 4854 | } | ||
| 4855 | } | ||
| 4856 | return object; | ||
| 4857 | }); | ||
| 4858 | } | ||
| 4859 | |||
| 4860 | /** | ||
| 4861 | * Creates a `baseEach` or `baseEachRight` function. | ||
| 4862 | * | ||
| 4863 | * @private | ||
| 4864 |      * @param {Function} eachFunc The function to iterate over a collection. | ||
| 4865 |      * @param {boolean} [fromRight] Specify iterating from right to left. | ||
| 4866 |      * @returns {Function} Returns the new base function. | ||
| 4867 | */ | ||
| 4868 |     function createBaseEach(eachFunc, fromRight) { | ||
| 4869 |       return function(collection, iteratee) { | ||
| 4870 |         if (collection == null) { | ||
| 4871 | return collection; | ||
| 4872 | } | ||
| 4873 |         if (!isArrayLike(collection)) { | ||
| 4874 | return eachFunc(collection, iteratee); | ||
| 4875 | } | ||
| 4876 | var length = collection.length, | ||
| 4877 | index = fromRight ? length : -1, | ||
| 4878 | iterable = Object(collection); | ||
| 4879 | |||
| 4880 |         while ((fromRight ? index-- : ++index < length)) { | ||
| 4881 |           if (iteratee(iterable[index], index, iterable) === false) { | ||
| 4882 | break; | ||
| 4883 | } | ||
| 4884 | } | ||
| 4885 | return collection; | ||
| 4886 | }; | ||
| 4887 | } | ||
| 4888 | |||
| 4889 | /** | ||
| 4890 | * Creates a base function for methods like `_.forIn` and `_.forOwn`. | ||
| 4891 | * | ||
| 4892 | * @private | ||
| 4893 |      * @param {boolean} [fromRight] Specify iterating from right to left. | ||
| 4894 |      * @returns {Function} Returns the new base function. | ||
| 4895 | */ | ||
| 4896 |     function createBaseFor(fromRight) { | ||
| 4897 |       return function(object, iteratee, keysFunc) { | ||
| 4898 | var index = -1, | ||
| 4899 | iterable = Object(object), | ||
| 4900 | props = keysFunc(object), | ||
| 4901 | length = props.length; | ||
| 4902 | |||
| 4903 |         while (length--) { | ||
| 4904 | var key = props[fromRight ? length : ++index]; | ||
| 4905 |           if (iteratee(iterable[key], key, iterable) === false) { | ||
| 4906 | break; | ||
| 4907 | } | ||
| 4908 | } | ||
| 4909 | return object; | ||
| 4910 | }; | ||
| 4911 | } | ||
| 4912 | |||
| 4913 | /** | ||
| 4914 | * Creates a function that wraps `func` to invoke it with the optional `this` | ||
| 4915 | * binding of `thisArg`. | ||
| 4916 | * | ||
| 4917 | * @private | ||
| 4918 |      * @param {Function} func The function to wrap. | ||
| 4919 |      * @param {number} bitmask The bitmask flags. See `createWrap` for more details. | ||
| 4920 |      * @param {*} [thisArg] The `this` binding of `func`. | ||
| 4921 |      * @returns {Function} Returns the new wrapped function. | ||
| 4922 | */ | ||
| 4923 |     function createBind(func, bitmask, thisArg) { | ||
| 4924 | var isBind = bitmask & WRAP_BIND_FLAG, | ||
| 4925 | Ctor = createCtor(func); | ||
| 4926 | |||
| 4927 |       function wrapper() { | ||
| 4928 | var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; | ||
| 4929 | return fn.apply(isBind ? thisArg : this, arguments); | ||
| 4930 | } | ||
| 4931 | return wrapper; | ||
| 4932 | } | ||
| 4933 | |||
| 4934 | /** | ||
| 4935 | * Creates a function like `_.lowerFirst`. | ||
| 4936 | * | ||
| 4937 | * @private | ||
| 4938 |      * @param {string} methodName The name of the `String` case method to use. | ||
| 4939 |      * @returns {Function} Returns the new case function. | ||
| 4940 | */ | ||
| 4941 |     function createCaseFirst(methodName) { | ||
| 4942 |       return function(string) { | ||
| 4943 | string = toString(string); | ||
| 4944 | |||
| 4945 | var strSymbols = hasUnicode(string) | ||
| 4946 | ? stringToArray(string) | ||
| 4947 | : undefined; | ||
| 4948 | |||
| 4949 | var chr = strSymbols | ||
| 4950 | ? strSymbols[0] | ||
| 4951 | : string.charAt(0); | ||
| 4952 | |||
| 4953 | var trailing = strSymbols | ||
| 4954 |           ? castSlice(strSymbols, 1).join('') | ||
| 4955 | : string.slice(1); | ||
| 4956 | |||
| 4957 | return chr[methodName]() + trailing; | ||
| 4958 | }; | ||
| 4959 | } | ||
| 4960 | |||
| 4961 | /** | ||
| 4962 | * Creates a function like `_.camelCase`. | ||
| 4963 | * | ||
| 4964 | * @private | ||
| 4965 |      * @param {Function} callback The function to combine each word. | ||
| 4966 |      * @returns {Function} Returns the new compounder function. | ||
| 4967 | */ | ||
| 4968 |     function createCompounder(callback) { | ||
| 4969 |       return function(string) { | ||
| 4970 | return arrayReduce(words(deburr(string).replace(reApos, '')), callback, ''); | ||
| 4971 | }; | ||
| 4972 | } | ||
| 4973 | |||
| 4974 | /** | ||
| 4975 | * Creates a function that produces an instance of `Ctor` regardless of | ||
| 4976 | * whether it was invoked as part of a `new` expression or by `call` or `apply`. | ||
| 4977 | * | ||
| 4978 | * @private | ||
| 4979 |      * @param {Function} Ctor The constructor to wrap. | ||
| 4980 |      * @returns {Function} Returns the new wrapped function. | ||
| 4981 | */ | ||
| 4982 |     function createCtor(Ctor) { | ||
| 4983 |       return function() { | ||
| 4984 | // Use a `switch` statement to work with class constructors. See | ||
| 4985 | // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist | ||
| 4986 | // for more details. | ||
| 4987 | var args = arguments; | ||
| 4988 |         switch (args.length) { | ||
| 4989 | case 0: return new Ctor; | ||
| 4990 | case 1: return new Ctor(args[0]); | ||
| 4991 | case 2: return new Ctor(args[0], args[1]); | ||
| 4992 | case 3: return new Ctor(args[0], args[1], args[2]); | ||
| 4993 | case 4: return new Ctor(args[0], args[1], args[2], args[3]); | ||
| 4994 | case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]); | ||
| 4995 | case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]); | ||
| 4996 | case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]); | ||
| 4997 | } | ||
| 4998 | var thisBinding = baseCreate(Ctor.prototype), | ||
| 4999 | result = Ctor.apply(thisBinding, args); | ||
| 5000 | |||
| 5001 | // Mimic the constructor's `return` behavior. | ||
| 5002 | // See https://es5.github.io/#x13.2.2 for more details. | ||
| 5003 | return isObject(result) ? result : thisBinding; | ||
| 5004 | }; | ||
| 5005 | } | ||
| 5006 | |||
| 5007 | /** | ||
| 5008 | * Creates a function that wraps `func` to enable currying. | ||
| 5009 | * | ||
| 5010 | * @private | ||
| 5011 |      * @param {Function} func The function to wrap. | ||
| 5012 |      * @param {number} bitmask The bitmask flags. See `createWrap` for more details. | ||
| 5013 |      * @param {number} arity The arity of `func`. | ||
| 5014 |      * @returns {Function} Returns the new wrapped function. | ||
| 5015 | */ | ||
| 5016 |     function createCurry(func, bitmask, arity) { | ||
| 5017 | var Ctor = createCtor(func); | ||
| 5018 | |||
| 5019 |       function wrapper() { | ||
| 5020 | var length = arguments.length, | ||
| 5021 | args = Array(length), | ||
| 5022 | index = length, | ||
| 5023 | placeholder = getHolder(wrapper); | ||
| 5024 | |||
| 5025 |         while (index--) { | ||
| 5026 | args[index] = arguments[index]; | ||
| 5027 | } | ||
| 5028 | var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder) | ||
| 5029 | ? [] | ||
| 5030 | : replaceHolders(args, placeholder); | ||
| 5031 | |||
| 5032 | length -= holders.length; | ||
| 5033 |         if (length < arity) { | ||
| 5034 | return createRecurry( | ||
| 5035 | func, bitmask, createHybrid, wrapper.placeholder, undefined, | ||
| 5036 | args, holders, undefined, undefined, arity - length); | ||
| 5037 | } | ||
| 5038 | var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; | ||
| 5039 | return apply(fn, this, args); | ||
| 5040 | } | ||
| 5041 | return wrapper; | ||
| 5042 | } | ||
| 5043 | |||
| 5044 | /** | ||
| 5045 | * Creates a `_.find` or `_.findLast` function. | ||
| 5046 | * | ||
| 5047 | * @private | ||
| 5048 |      * @param {Function} findIndexFunc The function to find the collection index. | ||
| 5049 |      * @returns {Function} Returns the new find function. | ||
| 5050 | */ | ||
| 5051 |     function createFind(findIndexFunc) { | ||
| 5052 |       return function(collection, predicate, fromIndex) { | ||
| 5053 | var iterable = Object(collection); | ||
| 5054 |         if (!isArrayLike(collection)) { | ||
| 5055 | var iteratee = getIteratee(predicate, 3); | ||
| 5056 | collection = keys(collection); | ||
| 5057 |           predicate = function(key) { return iteratee(iterable[key], key, iterable); }; | ||
| 5058 | } | ||
| 5059 | var index = findIndexFunc(collection, predicate, fromIndex); | ||
| 5060 | return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined; | ||
| 5061 | }; | ||
| 5062 | } | ||
| 5063 | |||
| 5064 | /** | ||
| 5065 | * Creates a `_.flow` or `_.flowRight` function. | ||
| 5066 | * | ||
| 5067 | * @private | ||
| 5068 |      * @param {boolean} [fromRight] Specify iterating from right to left. | ||
| 5069 |      * @returns {Function} Returns the new flow function. | ||
| 5070 | */ | ||
| 5071 |     function createFlow(fromRight) { | ||
| 5072 |       return flatRest(function(funcs) { | ||
| 5073 | var length = funcs.length, | ||
| 5074 | index = length, | ||
| 5075 | prereq = LodashWrapper.prototype.thru; | ||
| 5076 | |||
| 5077 |         if (fromRight) { | ||
| 5078 | funcs.reverse(); | ||
| 5079 | } | ||
| 5080 |         while (index--) { | ||
| 5081 | var func = funcs[index]; | ||
| 5082 |           if (typeof func != 'function') { | ||
| 5083 | throw new TypeError(FUNC_ERROR_TEXT); | ||
| 5084 | } | ||
| 5085 |           if (prereq && !wrapper && getFuncName(func) == 'wrapper') { | ||
| 5086 | var wrapper = new LodashWrapper([], true); | ||
| 5087 | } | ||
| 5088 | } | ||
| 5089 | index = wrapper ? index : length; | ||
| 5090 |         while (++index < length) { | ||
| 5091 | func = funcs[index]; | ||
| 5092 | |||
| 5093 | var funcName = getFuncName(func), | ||
| 5094 | data = funcName == 'wrapper' ? getData(func) : undefined; | ||
| 5095 | |||
| 5096 | if (data && isLaziable(data[0]) && | ||
| 5097 | data[1] == (WRAP_ARY_FLAG | WRAP_CURRY_FLAG | WRAP_PARTIAL_FLAG | WRAP_REARG_FLAG) && | ||
| 5098 | !data[4].length && data[9] == 1 | ||
| 5099 |               ) { | ||
| 5100 | wrapper = wrapper[getFuncName(data[0])].apply(wrapper, data[3]); | ||
| 5101 |           } else { | ||
| 5102 | wrapper = (func.length == 1 && isLaziable(func)) | ||
| 5103 | ? wrapper[funcName]() | ||
| 5104 | : wrapper.thru(func); | ||
| 5105 | } | ||
| 5106 | } | ||
| 5107 |         return function() { | ||
| 5108 | var args = arguments, | ||
| 5109 | value = args[0]; | ||
| 5110 | |||
| 5111 |           if (wrapper && args.length == 1 && isArray(value)) { | ||
| 5112 | return wrapper.plant(value).value(); | ||
| 5113 | } | ||
| 5114 | var index = 0, | ||
| 5115 | result = length ? funcs[index].apply(this, args) : value; | ||
| 5116 | |||
| 5117 |           while (++index < length) { | ||
| 5118 | result = funcs[index].call(this, result); | ||
| 5119 | } | ||
| 5120 | return result; | ||
| 5121 | }; | ||
| 5122 | }); | ||
| 5123 | } | ||
| 5124 | |||
| 5125 | /** | ||
| 5126 | * Creates a function that wraps `func` to invoke it with optional `this` | ||
| 5127 | * binding of `thisArg`, partial application, and currying. | ||
| 5128 | * | ||
| 5129 | * @private | ||
| 5130 |      * @param {Function|string} func The function or method name to wrap. | ||
| 5131 |      * @param {number} bitmask The bitmask flags. See `createWrap` for more details. | ||
| 5132 |      * @param {*} [thisArg] The `this` binding of `func`. | ||
| 5133 |      * @param {Array} [partials] The arguments to prepend to those provided to | ||
| 5134 | * the new function. | ||
| 5135 |      * @param {Array} [holders] The `partials` placeholder indexes. | ||
| 5136 |      * @param {Array} [partialsRight] The arguments to append to those provided | ||
| 5137 | * to the new function. | ||
| 5138 |      * @param {Array} [holdersRight] The `partialsRight` placeholder indexes. | ||
| 5139 |      * @param {Array} [argPos] The argument positions of the new function. | ||
| 5140 |      * @param {number} [ary] The arity cap of `func`. | ||
| 5141 |      * @param {number} [arity] The arity of `func`. | ||
| 5142 |      * @returns {Function} Returns the new wrapped function. | ||
| 5143 | */ | ||
| 5144 |     function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) { | ||
| 5145 | var isAry = bitmask & WRAP_ARY_FLAG, | ||
| 5146 | isBind = bitmask & WRAP_BIND_FLAG, | ||
| 5147 | isBindKey = bitmask & WRAP_BIND_KEY_FLAG, | ||
| 5148 | isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG), | ||
| 5149 | isFlip = bitmask & WRAP_FLIP_FLAG, | ||
| 5150 | Ctor = isBindKey ? undefined : createCtor(func); | ||
| 5151 | |||
| 5152 |       function wrapper() { | ||
| 5153 | var length = arguments.length, | ||
| 5154 | args = Array(length), | ||
| 5155 | index = length; | ||
| 5156 | |||
| 5157 |         while (index--) { | ||
| 5158 | args[index] = arguments[index]; | ||
| 5159 | } | ||
| 5160 |         if (isCurried) { | ||
| 5161 | var placeholder = getHolder(wrapper), | ||
| 5162 | holdersCount = countHolders(args, placeholder); | ||
| 5163 | } | ||
| 5164 |         if (partials) { | ||
| 5165 | args = composeArgs(args, partials, holders, isCurried); | ||
| 5166 | } | ||
| 5167 |         if (partialsRight) { | ||
| 5168 | args = composeArgsRight(args, partialsRight, holdersRight, isCurried); | ||
| 5169 | } | ||
| 5170 | length -= holdersCount; | ||
| 5171 |         if (isCurried && length < arity) { | ||
| 5172 | var newHolders = replaceHolders(args, placeholder); | ||
| 5173 | return createRecurry( | ||
| 5174 | func, bitmask, createHybrid, wrapper.placeholder, thisArg, | ||
| 5175 | args, newHolders, argPos, ary, arity - length | ||
| 5176 | ); | ||
| 5177 | } | ||
| 5178 | var thisBinding = isBind ? thisArg : this, | ||
| 5179 | fn = isBindKey ? thisBinding[func] : func; | ||
| 5180 | |||
| 5181 | length = args.length; | ||
| 5182 |         if (argPos) { | ||
| 5183 | args = reorder(args, argPos); | ||
| 5184 |         } else if (isFlip && length > 1) { | ||
| 5185 | args.reverse(); | ||
| 5186 | } | ||
| 5187 |         if (isAry && ary < length) { | ||
| 5188 | args.length = ary; | ||
| 5189 | } | ||
| 5190 |         if (this && this !== root && this instanceof wrapper) { | ||
| 5191 | fn = Ctor || createCtor(fn); | ||
| 5192 | } | ||
| 5193 | return fn.apply(thisBinding, args); | ||
| 5194 | } | ||
| 5195 | return wrapper; | ||
| 5196 | } | ||
| 5197 | |||
| 5198 | /** | ||
| 5199 | * Creates a function like `_.invertBy`. | ||
| 5200 | * | ||
| 5201 | * @private | ||
| 5202 |      * @param {Function} setter The function to set accumulator values. | ||
| 5203 |      * @param {Function} toIteratee The function to resolve iteratees. | ||
| 5204 |      * @returns {Function} Returns the new inverter function. | ||
| 5205 | */ | ||
| 5206 |     function createInverter(setter, toIteratee) { | ||
| 5207 |       return function(object, iteratee) { | ||
| 5208 |         return baseInverter(object, setter, toIteratee(iteratee), {}); | ||
| 5209 | }; | ||
| 5210 | } | ||
| 5211 | |||
| 5212 | /** | ||
| 5213 | * Creates a function that performs a mathematical operation on two values. | ||
| 5214 | * | ||
| 5215 | * @private | ||
| 5216 |      * @param {Function} operator The function to perform the operation. | ||
| 5217 |      * @param {number} [defaultValue] The value used for `undefined` arguments. | ||
| 5218 |      * @returns {Function} Returns the new mathematical operation function. | ||
| 5219 | */ | ||
| 5220 |     function createMathOperation(operator, defaultValue) { | ||
| 5221 |       return function(value, other) { | ||
| 5222 | var result; | ||
| 5223 |         if (value === undefined && other === undefined) { | ||
| 5224 | return defaultValue; | ||
| 5225 | } | ||
| 5226 |         if (value !== undefined) { | ||
| 5227 | result = value; | ||
| 5228 | } | ||
| 5229 |         if (other !== undefined) { | ||
| 5230 |           if (result === undefined) { | ||
| 5231 | return other; | ||
| 5232 | } | ||
| 5233 |           if (typeof value == 'string' || typeof other == 'string') { | ||
| 5234 | value = baseToString(value); | ||
| 5235 | other = baseToString(other); | ||
| 5236 |           } else { | ||
| 5237 | value = baseToNumber(value); | ||
| 5238 | other = baseToNumber(other); | ||
| 5239 | } | ||
| 5240 | result = operator(value, other); | ||
| 5241 | } | ||
| 5242 | return result; | ||
| 5243 | }; | ||
| 5244 | } | ||
| 5245 | |||
| 5246 | /** | ||
| 5247 | * Creates a function like `_.over`. | ||
| 5248 | * | ||
| 5249 | * @private | ||
| 5250 |      * @param {Function} arrayFunc The function to iterate over iteratees. | ||
| 5251 |      * @returns {Function} Returns the new over function. | ||
| 5252 | */ | ||
| 5253 |     function createOver(arrayFunc) { | ||
| 5254 |       return flatRest(function(iteratees) { | ||
| 5255 | iteratees = arrayMap(iteratees, baseUnary(getIteratee())); | ||
| 5256 |         return baseRest(function(args) { | ||
| 5257 | var thisArg = this; | ||
| 5258 |           return arrayFunc(iteratees, function(iteratee) { | ||
| 5259 | return apply(iteratee, thisArg, args); | ||
| 5260 | }); | ||
| 5261 | }); | ||
| 5262 | }); | ||
| 5263 | } | ||
| 5264 | |||
| 5265 | /** | ||
| 5266 | * Creates the padding for `string` based on `length`. The `chars` string | ||
| 5267 | * is truncated if the number of characters exceeds `length`. | ||
| 5268 | * | ||
| 5269 | * @private | ||
| 5270 |      * @param {number} length The padding length. | ||
| 5271 |      * @param {string} [chars=' '] The string used as padding. | ||
| 5272 |      * @returns {string} Returns the padding for `string`. | ||
| 5273 | */ | ||
| 5274 |     function createPadding(length, chars) { | ||
| 5275 | chars = chars === undefined ? ' ' : baseToString(chars); | ||
| 5276 | |||
| 5277 | var charsLength = chars.length; | ||
| 5278 |       if (charsLength < 2) { | ||
| 5279 | return charsLength ? baseRepeat(chars, length) : chars; | ||
| 5280 | } | ||
| 5281 | var result = baseRepeat(chars, nativeCeil(length / stringSize(chars))); | ||
| 5282 | return hasUnicode(chars) | ||
| 5283 |         ? castSlice(stringToArray(result), 0, length).join('') | ||
| 5284 | : result.slice(0, length); | ||
| 5285 | } | ||
| 5286 | |||
| 5287 | /** | ||
| 5288 | * Creates a function that wraps `func` to invoke it with the `this` binding | ||
| 5289 | * of `thisArg` and `partials` prepended to the arguments it receives. | ||
| 5290 | * | ||
| 5291 | * @private | ||
| 5292 |      * @param {Function} func The function to wrap. | ||
| 5293 |      * @param {number} bitmask The bitmask flags. See `createWrap` for more details. | ||
| 5294 |      * @param {*} thisArg The `this` binding of `func`. | ||
| 5295 |      * @param {Array} partials The arguments to prepend to those provided to | ||
| 5296 | * the new function. | ||
| 5297 |      * @returns {Function} Returns the new wrapped function. | ||
| 5298 | */ | ||
| 5299 |     function createPartial(func, bitmask, thisArg, partials) { | ||
| 5300 | var isBind = bitmask & WRAP_BIND_FLAG, | ||
| 5301 | Ctor = createCtor(func); | ||
| 5302 | |||
| 5303 |       function wrapper() { | ||
| 5304 | var argsIndex = -1, | ||
| 5305 | argsLength = arguments.length, | ||
| 5306 | leftIndex = -1, | ||
| 5307 | leftLength = partials.length, | ||
| 5308 | args = Array(leftLength + argsLength), | ||
| 5309 | fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; | ||
| 5310 | |||
| 5311 |         while (++leftIndex < leftLength) { | ||
| 5312 | args[leftIndex] = partials[leftIndex]; | ||
| 5313 | } | ||
| 5314 |         while (argsLength--) { | ||
| 5315 | args[leftIndex++] = arguments[++argsIndex]; | ||
| 5316 | } | ||
| 5317 | return apply(fn, isBind ? thisArg : this, args); | ||
| 5318 | } | ||
| 5319 | return wrapper; | ||
| 5320 | } | ||
| 5321 | |||
| 5322 | /** | ||
| 5323 | * Creates a `_.range` or `_.rangeRight` function. | ||
| 5324 | * | ||
| 5325 | * @private | ||
| 5326 |      * @param {boolean} [fromRight] Specify iterating from right to left. | ||
| 5327 |      * @returns {Function} Returns the new range function. | ||
| 5328 | */ | ||
| 5329 |     function createRange(fromRight) { | ||
| 5330 |       return function(start, end, step) { | ||
| 5331 |         if (step && typeof step != 'number' && isIterateeCall(start, end, step)) { | ||
| 5332 | end = step = undefined; | ||
| 5333 | } | ||
| 5334 | // Ensure the sign of `-0` is preserved. | ||
| 5335 | start = toFinite(start); | ||
| 5336 |         if (end === undefined) { | ||
| 5337 | end = start; | ||
| 5338 | start = 0; | ||
| 5339 |         } else { | ||
| 5340 | end = toFinite(end); | ||
| 5341 | } | ||
| 5342 | step = step === undefined ? (start < end ? 1 : -1) : toFinite(step); | ||
| 5343 | return baseRange(start, end, step, fromRight); | ||
| 5344 | }; | ||
| 5345 | } | ||
| 5346 | |||
| 5347 | /** | ||
| 5348 | * Creates a function that performs a relational operation on two values. | ||
| 5349 | * | ||
| 5350 | * @private | ||
| 5351 |      * @param {Function} operator The function to perform the operation. | ||
| 5352 |      * @returns {Function} Returns the new relational operation function. | ||
| 5353 | */ | ||
| 5354 |     function createRelationalOperation(operator) { | ||
| 5355 |       return function(value, other) { | ||
| 5356 |         if (!(typeof value == 'string' && typeof other == 'string')) { | ||
| 5357 | value = toNumber(value); | ||
| 5358 | other = toNumber(other); | ||
| 5359 | } | ||
| 5360 | return operator(value, other); | ||
| 5361 | }; | ||
| 5362 | } | ||
| 5363 | |||
| 5364 | /** | ||
| 5365 | * Creates a function that wraps `func` to continue currying. | ||
| 5366 | * | ||
| 5367 | * @private | ||
| 5368 |      * @param {Function} func The function to wrap. | ||
| 5369 |      * @param {number} bitmask The bitmask flags. See `createWrap` for more details. | ||
| 5370 |      * @param {Function} wrapFunc The function to create the `func` wrapper. | ||
| 5371 |      * @param {*} placeholder The placeholder value. | ||
| 5372 |      * @param {*} [thisArg] The `this` binding of `func`. | ||
| 5373 |      * @param {Array} [partials] The arguments to prepend to those provided to | ||
| 5374 | * the new function. | ||
| 5375 |      * @param {Array} [holders] The `partials` placeholder indexes. | ||
| 5376 |      * @param {Array} [argPos] The argument positions of the new function. | ||
| 5377 |      * @param {number} [ary] The arity cap of `func`. | ||
| 5378 |      * @param {number} [arity] The arity of `func`. | ||
| 5379 |      * @returns {Function} Returns the new wrapped function. | ||
| 5380 | */ | ||
| 5381 |     function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) { | ||
| 5382 | var isCurry = bitmask & WRAP_CURRY_FLAG, | ||
| 5383 | newHolders = isCurry ? holders : undefined, | ||
| 5384 | newHoldersRight = isCurry ? undefined : holders, | ||
| 5385 | newPartials = isCurry ? partials : undefined, | ||
| 5386 | newPartialsRight = isCurry ? undefined : partials; | ||
| 5387 | |||
| 5388 | bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG); | ||
| 5389 | bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG); | ||
| 5390 | |||
| 5391 |       if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) { | ||
| 5392 | bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG); | ||
| 5393 | } | ||
| 5394 | var newData = [ | ||
| 5395 | func, bitmask, thisArg, newPartials, newHolders, newPartialsRight, | ||
| 5396 | newHoldersRight, argPos, ary, arity | ||
| 5397 | ]; | ||
| 5398 | |||
| 5399 | var result = wrapFunc.apply(undefined, newData); | ||
| 5400 |       if (isLaziable(func)) { | ||
| 5401 | setData(result, newData); | ||
| 5402 | } | ||
| 5403 | result.placeholder = placeholder; | ||
| 5404 | return setWrapToString(result, func, bitmask); | ||
| 5405 | } | ||
| 5406 | |||
| 5407 | /** | ||
| 5408 | * Creates a function like `_.round`. | ||
| 5409 | * | ||
| 5410 | * @private | ||
| 5411 |      * @param {string} methodName The name of the `Math` method to use when rounding. | ||
| 5412 |      * @returns {Function} Returns the new round function. | ||
| 5413 | */ | ||
| 5414 |     function createRound(methodName) { | ||
| 5415 | var func = Math[methodName]; | ||
| 5416 |       return function(number, precision) { | ||
| 5417 | number = toNumber(number); | ||
| 5418 | precision = precision == null ? 0 : nativeMin(toInteger(precision), 292); | ||
| 5419 |         if (precision && nativeIsFinite(number)) { | ||
| 5420 | // Shift with exponential notation to avoid floating-point issues. | ||
| 5421 | // See [MDN](https://mdn.io/round#Examples) for more details. | ||
| 5422 |           var pair = (toString(number) + 'e').split('e'), | ||
| 5423 | value = func(pair[0] + 'e' + (+pair[1] + precision)); | ||
| 5424 | |||
| 5425 |           pair = (toString(value) + 'e').split('e'); | ||
| 5426 | return +(pair[0] + 'e' + (+pair[1] - precision)); | ||
| 5427 | } | ||
| 5428 | return func(number); | ||
| 5429 | }; | ||
| 5430 | } | ||
| 5431 | |||
| 5432 | /** | ||
| 5433 | * Creates a set object of `values`. | ||
| 5434 | * | ||
| 5435 | * @private | ||
| 5436 |      * @param {Array} values The values to add to the set. | ||
| 5437 |      * @returns {Object} Returns the new set. | ||
| 5438 | */ | ||
| 5439 |     var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) { | ||
| 5440 | return new Set(values); | ||
| 5441 | }; | ||
| 5442 | |||
| 5443 | /** | ||
| 5444 | * Creates a `_.toPairs` or `_.toPairsIn` function. | ||
| 5445 | * | ||
| 5446 | * @private | ||
| 5447 |      * @param {Function} keysFunc The function to get the keys of a given object. | ||
| 5448 |      * @returns {Function} Returns the new pairs function. | ||
| 5449 | */ | ||
| 5450 |     function createToPairs(keysFunc) { | ||
| 5451 |       return function(object) { | ||
| 5452 | var tag = getTag(object); | ||
| 5453 |         if (tag == mapTag) { | ||
| 5454 | return mapToArray(object); | ||
| 5455 | } | ||
| 5456 |         if (tag == setTag) { | ||
| 5457 | return setToPairs(object); | ||
| 5458 | } | ||
| 5459 | return baseToPairs(object, keysFunc(object)); | ||
| 5460 | }; | ||
| 5461 | } | ||
| 5462 | |||
| 5463 | /** | ||
| 5464 | * Creates a function that either curries or invokes `func` with optional | ||
| 5465 | * `this` binding and partially applied arguments. | ||
| 5466 | * | ||
| 5467 | * @private | ||
| 5468 |      * @param {Function|string} func The function or method name to wrap. | ||
| 5469 |      * @param {number} bitmask The bitmask flags. | ||
| 5470 | * 1 - `_.bind` | ||
| 5471 | * 2 - `_.bindKey` | ||
| 5472 | * 4 - `_.curry` or `_.curryRight` of a bound function | ||
| 5473 | * 8 - `_.curry` | ||
| 5474 | * 16 - `_.curryRight` | ||
| 5475 | * 32 - `_.partial` | ||
| 5476 | * 64 - `_.partialRight` | ||
| 5477 | * 128 - `_.rearg` | ||
| 5478 | * 256 - `_.ary` | ||
| 5479 | * 512 - `_.flip` | ||
| 5480 |      * @param {*} [thisArg] The `this` binding of `func`. | ||
| 5481 |      * @param {Array} [partials] The arguments to be partially applied. | ||
| 5482 |      * @param {Array} [holders] The `partials` placeholder indexes. | ||
| 5483 |      * @param {Array} [argPos] The argument positions of the new function. | ||
| 5484 |      * @param {number} [ary] The arity cap of `func`. | ||
| 5485 |      * @param {number} [arity] The arity of `func`. | ||
| 5486 |      * @returns {Function} Returns the new wrapped function. | ||
| 5487 | */ | ||
| 5488 |     function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) { | ||
| 5489 | var isBindKey = bitmask & WRAP_BIND_KEY_FLAG; | ||
| 5490 |       if (!isBindKey && typeof func != 'function') { | ||
| 5491 | throw new TypeError(FUNC_ERROR_TEXT); | ||
| 5492 | } | ||
| 5493 | var length = partials ? partials.length : 0; | ||
| 5494 |       if (!length) { | ||
| 5495 | bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG); | ||
| 5496 | partials = holders = undefined; | ||
| 5497 | } | ||
| 5498 | ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0); | ||
| 5499 | arity = arity === undefined ? arity : toInteger(arity); | ||
| 5500 | length -= holders ? holders.length : 0; | ||
| 5501 | |||
| 5502 |       if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) { | ||
| 5503 | var partialsRight = partials, | ||
| 5504 | holdersRight = holders; | ||
| 5505 | |||
| 5506 | partials = holders = undefined; | ||
| 5507 | } | ||
| 5508 | var data = isBindKey ? undefined : getData(func); | ||
| 5509 | |||
| 5510 | var newData = [ | ||
| 5511 | func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, | ||
| 5512 | argPos, ary, arity | ||
| 5513 | ]; | ||
| 5514 | |||
| 5515 |       if (data) { | ||
| 5516 | mergeData(newData, data); | ||
| 5517 | } | ||
| 5518 | func = newData[0]; | ||
| 5519 | bitmask = newData[1]; | ||
| 5520 | thisArg = newData[2]; | ||
| 5521 | partials = newData[3]; | ||
| 5522 | holders = newData[4]; | ||
| 5523 | arity = newData[9] = newData[9] === undefined | ||
| 5524 | ? (isBindKey ? 0 : func.length) | ||
| 5525 | : nativeMax(newData[9] - length, 0); | ||
| 5526 | |||
| 5527 |       if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) { | ||
| 5528 | bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG); | ||
| 5529 | } | ||
| 5530 |       if (!bitmask || bitmask == WRAP_BIND_FLAG) { | ||
| 5531 | var result = createBind(func, bitmask, thisArg); | ||
| 5532 |       } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) { | ||
| 5533 | result = createCurry(func, bitmask, arity); | ||
| 5534 |       } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) { | ||
| 5535 | result = createPartial(func, bitmask, thisArg, partials); | ||
| 5536 |       } else { | ||
| 5537 | result = createHybrid.apply(undefined, newData); | ||
| 5538 | } | ||
| 5539 | var setter = data ? baseSetData : setData; | ||
| 5540 | return setWrapToString(setter(result, newData), func, bitmask); | ||
| 5541 | } | ||
| 5542 | |||
| 5543 | /** | ||
| 5544 | * Used by `_.defaults` to customize its `_.assignIn` use to assign properties | ||
| 5545 | * of source objects to the destination object for all destination properties | ||
| 5546 | * that resolve to `undefined`. | ||
| 5547 | * | ||
| 5548 | * @private | ||
| 5549 |      * @param {*} objValue The destination value. | ||
| 5550 |      * @param {*} srcValue The source value. | ||
| 5551 |      * @param {string} key The key of the property to assign. | ||
| 5552 |      * @param {Object} object The parent object of `objValue`. | ||
| 5553 |      * @returns {*} Returns the value to assign. | ||
| 5554 | */ | ||
| 5555 |     function customDefaultsAssignIn(objValue, srcValue, key, object) { | ||
| 5556 | if (objValue === undefined || | ||
| 5557 |           (eq(objValue, objectProto[key]) && !hasOwnProperty.call(object, key))) { | ||
| 5558 | return srcValue; | ||
| 5559 | } | ||
| 5560 | return objValue; | ||
| 5561 | } | ||
| 5562 | |||
| 5563 | /** | ||
| 5564 | * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source | ||
| 5565 | * objects into destination objects that are passed thru. | ||
| 5566 | * | ||
| 5567 | * @private | ||
| 5568 |      * @param {*} objValue The destination value. | ||
| 5569 |      * @param {*} srcValue The source value. | ||
| 5570 |      * @param {string} key The key of the property to merge. | ||
| 5571 |      * @param {Object} object The parent object of `objValue`. | ||
| 5572 |      * @param {Object} source The parent object of `srcValue`. | ||
| 5573 |      * @param {Object} [stack] Tracks traversed source values and their merged | ||
| 5574 | * counterparts. | ||
| 5575 |      * @returns {*} Returns the value to assign. | ||
| 5576 | */ | ||
| 5577 |     function customDefaultsMerge(objValue, srcValue, key, object, source, stack) { | ||
| 5578 |       if (isObject(objValue) && isObject(srcValue)) { | ||
| 5579 | // Recursively merge objects and arrays (susceptible to call stack limits). | ||
| 5580 | stack.set(srcValue, objValue); | ||
| 5581 | baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack); | ||
| 5582 | stack['delete'](srcValue); | ||
| 5583 | } | ||
| 5584 | return objValue; | ||
| 5585 | } | ||
| 5586 | |||
| 5587 | /** | ||
| 5588 | * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain | ||
| 5589 | * objects. | ||
| 5590 | * | ||
| 5591 | * @private | ||
| 5592 |      * @param {*} value The value to inspect. | ||
| 5593 |      * @param {string} key The key of the property to inspect. | ||
| 5594 |      * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`. | ||
| 5595 | */ | ||
| 5596 |     function customOmitClone(value) { | ||
| 5597 | return isPlainObject(value) ? undefined : value; | ||
| 5598 | } | ||
| 5599 | |||
| 5600 | /** | ||
| 5601 | * A specialized version of `baseIsEqualDeep` for arrays with support for | ||
| 5602 | * partial deep comparisons. | ||
| 5603 | * | ||
| 5604 | * @private | ||
| 5605 |      * @param {Array} array The array to compare. | ||
| 5606 |      * @param {Array} other The other array to compare. | ||
| 5607 |      * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. | ||
| 5608 |      * @param {Function} customizer The function to customize comparisons. | ||
| 5609 |      * @param {Function} equalFunc The function to determine equivalents of values. | ||
| 5610 |      * @param {Object} stack Tracks traversed `array` and `other` objects. | ||
| 5611 |      * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`. | ||
| 5612 | */ | ||
| 5613 |     function equalArrays(array, other, bitmask, customizer, equalFunc, stack) { | ||
| 5614 | var isPartial = bitmask & COMPARE_PARTIAL_FLAG, | ||
| 5615 | arrLength = array.length, | ||
| 5616 | othLength = other.length; | ||
| 5617 | |||
| 5618 |       if (arrLength != othLength && !(isPartial && othLength > arrLength)) { | ||
| 5619 | return false; | ||
| 5620 | } | ||
| 5621 | // Assume cyclic values are equal. | ||
| 5622 | var stacked = stack.get(array); | ||
| 5623 |       if (stacked && stack.get(other)) { | ||
| 5624 | return stacked == other; | ||
| 5625 | } | ||
| 5626 | var index = -1, | ||
| 5627 | result = true, | ||
| 5628 | seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined; | ||
| 5629 | |||
| 5630 | stack.set(array, other); | ||
| 5631 | stack.set(other, array); | ||
| 5632 | |||
| 5633 | // Ignore non-index properties. | ||
| 5634 |       while (++index < arrLength) { | ||
| 5635 | var arrValue = array[index], | ||
| 5636 | othValue = other[index]; | ||
| 5637 | |||
| 5638 |         if (customizer) { | ||
| 5639 | var compared = isPartial | ||
| 5640 | ? customizer(othValue, arrValue, index, other, array, stack) | ||
| 5641 | : customizer(arrValue, othValue, index, array, other, stack); | ||
| 5642 | } | ||
| 5643 |         if (compared !== undefined) { | ||
| 5644 |           if (compared) { | ||
| 5645 | continue; | ||
| 5646 | } | ||
| 5647 | result = false; | ||
| 5648 | break; | ||
| 5649 | } | ||
| 5650 | // Recursively compare arrays (susceptible to call stack limits). | ||
| 5651 |         if (seen) { | ||
| 5652 |           if (!arraySome(other, function(othValue, othIndex) { | ||
| 5653 | if (!cacheHas(seen, othIndex) && | ||
| 5654 |                     (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) { | ||
| 5655 | return seen.push(othIndex); | ||
| 5656 | } | ||
| 5657 |               })) { | ||
| 5658 | result = false; | ||
| 5659 | break; | ||
| 5660 | } | ||
| 5661 | } else if (!( | ||
| 5662 | arrValue === othValue || | ||
| 5663 | equalFunc(arrValue, othValue, bitmask, customizer, stack) | ||
| 5664 |             )) { | ||
| 5665 | result = false; | ||
| 5666 | break; | ||
| 5667 | } | ||
| 5668 | } | ||
| 5669 | stack['delete'](array); | ||
| 5670 | stack['delete'](other); | ||
| 5671 | return result; | ||
| 5672 | } | ||
| 5673 | |||
| 5674 | /** | ||
| 5675 | * A specialized version of `baseIsEqualDeep` for comparing objects of | ||
| 5676 | * the same `toStringTag`. | ||
| 5677 | * | ||
| 5678 | * **Note:** This function only supports comparing values with tags of | ||
| 5679 | * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`. | ||
| 5680 | * | ||
| 5681 | * @private | ||
| 5682 |      * @param {Object} object The object to compare. | ||
| 5683 |      * @param {Object} other The other object to compare. | ||
| 5684 |      * @param {string} tag The `toStringTag` of the objects to compare. | ||
| 5685 |      * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. | ||
| 5686 |      * @param {Function} customizer The function to customize comparisons. | ||
| 5687 |      * @param {Function} equalFunc The function to determine equivalents of values. | ||
| 5688 |      * @param {Object} stack Tracks traversed `object` and `other` objects. | ||
| 5689 |      * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. | ||
| 5690 | */ | ||
| 5691 |     function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) { | ||
| 5692 |       switch (tag) { | ||
| 5693 | case dataViewTag: | ||
| 5694 | if ((object.byteLength != other.byteLength) || | ||
| 5695 |               (object.byteOffset != other.byteOffset)) { | ||
| 5696 | return false; | ||
| 5697 | } | ||
| 5698 | object = object.buffer; | ||
| 5699 | other = other.buffer; | ||
| 5700 | |||
| 5701 | case arrayBufferTag: | ||
| 5702 | if ((object.byteLength != other.byteLength) || | ||
| 5703 |               !equalFunc(new Uint8Array(object), new Uint8Array(other))) { | ||
| 5704 | return false; | ||
| 5705 | } | ||
| 5706 | return true; | ||
| 5707 | |||
| 5708 | case boolTag: | ||
| 5709 | case dateTag: | ||
| 5710 | case numberTag: | ||
| 5711 | // Coerce booleans to `1` or `0` and dates to milliseconds. | ||
| 5712 | // Invalid dates are coerced to `NaN`. | ||
| 5713 | return eq(+object, +other); | ||
| 5714 | |||
| 5715 | case errorTag: | ||
| 5716 | return object.name == other.name && object.message == other.message; | ||
| 5717 | |||
| 5718 | case regexpTag: | ||
| 5719 | case stringTag: | ||
| 5720 | // Coerce regexes to strings and treat strings, primitives and objects, | ||
| 5721 | // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring | ||
| 5722 | // for more details. | ||
| 5723 | return object == (other + ''); | ||
| 5724 | |||
| 5725 | case mapTag: | ||
| 5726 | var convert = mapToArray; | ||
| 5727 | |||
| 5728 | case setTag: | ||
| 5729 | var isPartial = bitmask & COMPARE_PARTIAL_FLAG; | ||
| 5730 | convert || (convert = setToArray); | ||
| 5731 | |||
| 5732 |           if (object.size != other.size && !isPartial) { | ||
| 5733 | return false; | ||
| 5734 | } | ||
| 5735 | // Assume cyclic values are equal. | ||
| 5736 | var stacked = stack.get(object); | ||
| 5737 |           if (stacked) { | ||
| 5738 | return stacked == other; | ||
| 5739 | } | ||
| 5740 | bitmask |= COMPARE_UNORDERED_FLAG; | ||
| 5741 | |||
| 5742 | // Recursively compare objects (susceptible to call stack limits). | ||
| 5743 | stack.set(object, other); | ||
| 5744 | var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack); | ||
| 5745 | stack['delete'](object); | ||
| 5746 | return result; | ||
| 5747 | |||
| 5748 | case symbolTag: | ||
| 5749 |           if (symbolValueOf) { | ||
| 5750 | return symbolValueOf.call(object) == symbolValueOf.call(other); | ||
| 5751 | } | ||
| 5752 | } | ||
| 5753 | return false; | ||
| 5754 | } | ||
| 5755 | |||
| 5756 | /** | ||
| 5757 | * A specialized version of `baseIsEqualDeep` for objects with support for | ||
| 5758 | * partial deep comparisons. | ||
| 5759 | * | ||
| 5760 | * @private | ||
| 5761 |      * @param {Object} object The object to compare. | ||
| 5762 |      * @param {Object} other The other object to compare. | ||
| 5763 |      * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. | ||
| 5764 |      * @param {Function} customizer The function to customize comparisons. | ||
| 5765 |      * @param {Function} equalFunc The function to determine equivalents of values. | ||
| 5766 |      * @param {Object} stack Tracks traversed `object` and `other` objects. | ||
| 5767 |      * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. | ||
| 5768 | */ | ||
| 5769 |     function equalObjects(object, other, bitmask, customizer, equalFunc, stack) { | ||
| 5770 | var isPartial = bitmask & COMPARE_PARTIAL_FLAG, | ||
| 5771 | objProps = getAllKeys(object), | ||
| 5772 | objLength = objProps.length, | ||
| 5773 | othProps = getAllKeys(other), | ||
| 5774 | othLength = othProps.length; | ||
| 5775 | |||
| 5776 |       if (objLength != othLength && !isPartial) { | ||
| 5777 | return false; | ||
| 5778 | } | ||
| 5779 | var index = objLength; | ||
| 5780 |       while (index--) { | ||
| 5781 | var key = objProps[index]; | ||
| 5782 |         if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) { | ||
| 5783 | return false; | ||
| 5784 | } | ||
| 5785 | } | ||
| 5786 | // Assume cyclic values are equal. | ||
| 5787 | var stacked = stack.get(object); | ||
| 5788 |       if (stacked && stack.get(other)) { | ||
| 5789 | return stacked == other; | ||
| 5790 | } | ||
| 5791 | var result = true; | ||
| 5792 | stack.set(object, other); | ||
| 5793 | stack.set(other, object); | ||
| 5794 | |||
| 5795 | var skipCtor = isPartial; | ||
| 5796 |       while (++index < objLength) { | ||
| 5797 | key = objProps[index]; | ||
| 5798 | var objValue = object[key], | ||
| 5799 | othValue = other[key]; | ||
| 5800 | |||
| 5801 |         if (customizer) { | ||
| 5802 | var compared = isPartial | ||
| 5803 | ? customizer(othValue, objValue, key, other, object, stack) | ||
| 5804 | : customizer(objValue, othValue, key, object, other, stack); | ||
| 5805 | } | ||
| 5806 | // Recursively compare objects (susceptible to call stack limits). | ||
| 5807 | if (!(compared === undefined | ||
| 5808 | ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack)) | ||
| 5809 | : compared | ||
| 5810 |             )) { | ||
| 5811 | result = false; | ||
| 5812 | break; | ||
| 5813 | } | ||
| 5814 | skipCtor || (skipCtor = key == 'constructor'); | ||
| 5815 | } | ||
| 5816 |       if (result && !skipCtor) { | ||
| 5817 | var objCtor = object.constructor, | ||
| 5818 | othCtor = other.constructor; | ||
| 5819 | |||
| 5820 | // Non `Object` object instances with different constructors are not equal. | ||
| 5821 | if (objCtor != othCtor && | ||
| 5822 |             ('constructor' in object && 'constructor' in other) && | ||
| 5823 | !(typeof objCtor == 'function' && objCtor instanceof objCtor && | ||
| 5824 |               typeof othCtor == 'function' && othCtor instanceof othCtor)) { | ||
| 5825 | result = false; | ||
| 5826 | } | ||
| 5827 | } | ||
| 5828 | stack['delete'](object); | ||
| 5829 | stack['delete'](other); | ||
| 5830 | return result; | ||
| 5831 | } | ||
| 5832 | |||
| 5833 | /** | ||
| 5834 | * A specialized version of `baseRest` which flattens the rest array. | ||
| 5835 | * | ||
| 5836 | * @private | ||
| 5837 |      * @param {Function} func The function to apply a rest parameter to. | ||
| 5838 |      * @returns {Function} Returns the new function. | ||
| 5839 | */ | ||
| 5840 |     function flatRest(func) { | ||
| 5841 | return setToString(overRest(func, undefined, flatten), func + ''); | ||
| 5842 | } | ||
| 5843 | |||
| 5844 | /** | ||
| 5845 | * Creates an array of own enumerable property names and symbols of `object`. | ||
| 5846 | * | ||
| 5847 | * @private | ||
| 5848 |      * @param {Object} object The object to query. | ||
| 5849 |      * @returns {Array} Returns the array of property names and symbols. | ||
| 5850 | */ | ||
| 5851 |     function getAllKeys(object) { | ||
| 5852 | return baseGetAllKeys(object, keys, getSymbols); | ||
| 5853 | } | ||
| 5854 | |||
| 5855 | /** | ||
| 5856 | * Creates an array of own and inherited enumerable property names and | ||
| 5857 | * symbols of `object`. | ||
| 5858 | * | ||
| 5859 | * @private | ||
| 5860 |      * @param {Object} object The object to query. | ||
| 5861 |      * @returns {Array} Returns the array of property names and symbols. | ||
| 5862 | */ | ||
| 5863 |     function getAllKeysIn(object) { | ||
| 5864 | return baseGetAllKeys(object, keysIn, getSymbolsIn); | ||
| 5865 | } | ||
| 5866 | |||
| 5867 | /** | ||
| 5868 | * Gets metadata for `func`. | ||
| 5869 | * | ||
| 5870 | * @private | ||
| 5871 |      * @param {Function} func The function to query. | ||
| 5872 |      * @returns {*} Returns the metadata for `func`. | ||
| 5873 | */ | ||
| 5874 |     var getData = !metaMap ? noop : function(func) { | ||
| 5875 | return metaMap.get(func); | ||
| 5876 | }; | ||
| 5877 | |||
| 5878 | /** | ||
| 5879 | * Gets the name of `func`. | ||
| 5880 | * | ||
| 5881 | * @private | ||
| 5882 |      * @param {Function} func The function to query. | ||
| 5883 |      * @returns {string} Returns the function name. | ||
| 5884 | */ | ||
| 5885 |     function getFuncName(func) { | ||
| 5886 | var result = (func.name + ''), | ||
| 5887 | array = realNames[result], | ||
| 5888 | length = hasOwnProperty.call(realNames, result) ? array.length : 0; | ||
| 5889 | |||
| 5890 |       while (length--) { | ||
| 5891 | var data = array[length], | ||
| 5892 | otherFunc = data.func; | ||
| 5893 |         if (otherFunc == null || otherFunc == func) { | ||
| 5894 | return data.name; | ||
| 5895 | } | ||
| 5896 | } | ||
| 5897 | return result; | ||
| 5898 | } | ||
| 5899 | |||
| 5900 | /** | ||
| 5901 | * Gets the argument placeholder value for `func`. | ||
| 5902 | * | ||
| 5903 | * @private | ||
| 5904 |      * @param {Function} func The function to inspect. | ||
| 5905 |      * @returns {*} Returns the placeholder value. | ||
| 5906 | */ | ||
| 5907 |     function getHolder(func) { | ||
| 5908 | var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func; | ||
| 5909 | return object.placeholder; | ||
| 5910 | } | ||
| 5911 | |||
| 5912 | /** | ||
| 5913 | * Gets the appropriate "iteratee" function. If `_.iteratee` is customized, | ||
| 5914 | * this function returns the custom method, otherwise it returns `baseIteratee`. | ||
| 5915 | * If arguments are provided, the chosen function is invoked with them and | ||
| 5916 | * its result is returned. | ||
| 5917 | * | ||
| 5918 | * @private | ||
| 5919 |      * @param {*} [value] The value to convert to an iteratee. | ||
| 5920 |      * @param {number} [arity] The arity of the created iteratee. | ||
| 5921 |      * @returns {Function} Returns the chosen function or its result. | ||
| 5922 | */ | ||
| 5923 |     function getIteratee() { | ||
| 5924 | var result = lodash.iteratee || iteratee; | ||
| 5925 | result = result === iteratee ? baseIteratee : result; | ||
| 5926 | return arguments.length ? result(arguments[0], arguments[1]) : result; | ||
| 5927 | } | ||
| 5928 | |||
| 5929 | /** | ||
| 5930 | * Gets the data for `map`. | ||
| 5931 | * | ||
| 5932 | * @private | ||
| 5933 |      * @param {Object} map The map to query. | ||
| 5934 |      * @param {string} key The reference key. | ||
| 5935 |      * @returns {*} Returns the map data. | ||
| 5936 | */ | ||
| 5937 |     function getMapData(map, key) { | ||
| 5938 | var data = map.__data__; | ||
| 5939 | return isKeyable(key) | ||
| 5940 | ? data[typeof key == 'string' ? 'string' : 'hash'] | ||
| 5941 | : data.map; | ||
| 5942 | } | ||
| 5943 | |||
| 5944 | /** | ||
| 5945 | * Gets the property names, values, and compare flags of `object`. | ||
| 5946 | * | ||
| 5947 | * @private | ||
| 5948 |      * @param {Object} object The object to query. | ||
| 5949 |      * @returns {Array} Returns the match data of `object`. | ||
| 5950 | */ | ||
| 5951 |     function getMatchData(object) { | ||
| 5952 | var result = keys(object), | ||
| 5953 | length = result.length; | ||
| 5954 | |||
| 5955 |       while (length--) { | ||
| 5956 | var key = result[length], | ||
| 5957 | value = object[key]; | ||
| 5958 | |||
| 5959 | result[length] = [key, value, isStrictComparable(value)]; | ||
| 5960 | } | ||
| 5961 | return result; | ||
| 5962 | } | ||
| 5963 | |||
| 5964 | /** | ||
| 5965 | * Gets the native function at `key` of `object`. | ||
| 5966 | * | ||
| 5967 | * @private | ||
| 5968 |      * @param {Object} object The object to query. | ||
| 5969 |      * @param {string} key The key of the method to get. | ||
| 5970 |      * @returns {*} Returns the function if it's native, else `undefined`. | ||
| 5971 | */ | ||
| 5972 |     function getNative(object, key) { | ||
| 5973 | var value = getValue(object, key); | ||
| 5974 | return baseIsNative(value) ? value : undefined; | ||
| 5975 | } | ||
| 5976 | |||
| 5977 | /** | ||
| 5978 | * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values. | ||
| 5979 | * | ||
| 5980 | * @private | ||
| 5981 |      * @param {*} value The value to query. | ||
| 5982 |      * @returns {string} Returns the raw `toStringTag`. | ||
| 5983 | */ | ||
| 5984 |     function getRawTag(value) { | ||
| 5985 | var isOwn = hasOwnProperty.call(value, symToStringTag), | ||
| 5986 | tag = value[symToStringTag]; | ||
| 5987 | |||
| 5988 |       try { | ||
| 5989 | value[symToStringTag] = undefined; | ||
| 5990 | var unmasked = true; | ||
| 5991 |       } catch (e) {} | ||
| 5992 | |||
| 5993 | var result = nativeObjectToString.call(value); | ||
| 5994 |       if (unmasked) { | ||
| 5995 |         if (isOwn) { | ||
| 5996 | value[symToStringTag] = tag; | ||
| 5997 |         } else { | ||
| 5998 | delete value[symToStringTag]; | ||
| 5999 | } | ||
| 6000 | } | ||
| 6001 | return result; | ||
| 6002 | } | ||
| 6003 | |||
| 6004 | /** | ||
| 6005 | * Creates an array of the own enumerable symbols of `object`. | ||
| 6006 | * | ||
| 6007 | * @private | ||
| 6008 |      * @param {Object} object The object to query. | ||
| 6009 |      * @returns {Array} Returns the array of symbols. | ||
| 6010 | */ | ||
| 6011 |     var getSymbols = !nativeGetSymbols ? stubArray : function(object) { | ||
| 6012 |       if (object == null) { | ||
| 6013 | return []; | ||
| 6014 | } | ||
| 6015 | object = Object(object); | ||
| 6016 |       return arrayFilter(nativeGetSymbols(object), function(symbol) { | ||
| 6017 | return propertyIsEnumerable.call(object, symbol); | ||
| 6018 | }); | ||
| 6019 | }; | ||
| 6020 | |||
| 6021 | /** | ||
| 6022 | * Creates an array of the own and inherited enumerable symbols of `object`. | ||
| 6023 | * | ||
| 6024 | * @private | ||
| 6025 |      * @param {Object} object The object to query. | ||
| 6026 |      * @returns {Array} Returns the array of symbols. | ||
| 6027 | */ | ||
| 6028 |     var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) { | ||
| 6029 | var result = []; | ||
| 6030 |       while (object) { | ||
| 6031 | arrayPush(result, getSymbols(object)); | ||
| 6032 | object = getPrototype(object); | ||
| 6033 | } | ||
| 6034 | return result; | ||
| 6035 | }; | ||
| 6036 | |||
| 6037 | /** | ||
| 6038 | * Gets the `toStringTag` of `value`. | ||
| 6039 | * | ||
| 6040 | * @private | ||
| 6041 |      * @param {*} value The value to query. | ||
| 6042 |      * @returns {string} Returns the `toStringTag`. | ||
| 6043 | */ | ||
| 6044 | var getTag = baseGetTag; | ||
| 6045 | |||
| 6046 | // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6. | ||
| 6047 | if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) || | ||
| 6048 | (Map && getTag(new Map) != mapTag) || | ||
| 6049 | (Promise && getTag(Promise.resolve()) != promiseTag) || | ||
| 6050 | (Set && getTag(new Set) != setTag) || | ||
| 6051 |         (WeakMap && getTag(new WeakMap) != weakMapTag)) { | ||
| 6052 |       getTag = function(value) { | ||
| 6053 | var result = baseGetTag(value), | ||
| 6054 | Ctor = result == objectTag ? value.constructor : undefined, | ||
| 6055 | ctorString = Ctor ? toSource(Ctor) : ''; | ||
| 6056 | |||
| 6057 |         if (ctorString) { | ||
| 6058 |           switch (ctorString) { | ||
| 6059 | case dataViewCtorString: return dataViewTag; | ||
| 6060 | case mapCtorString: return mapTag; | ||
| 6061 | case promiseCtorString: return promiseTag; | ||
| 6062 | case setCtorString: return setTag; | ||
| 6063 | case weakMapCtorString: return weakMapTag; | ||
| 6064 | } | ||
| 6065 | } | ||
| 6066 | return result; | ||
| 6067 | }; | ||
| 6068 | } | ||
| 6069 | |||
| 6070 | /** | ||
| 6071 | * Gets the view, applying any `transforms` to the `start` and `end` positions. | ||
| 6072 | * | ||
| 6073 | * @private | ||
| 6074 |      * @param {number} start The start of the view. | ||
| 6075 |      * @param {number} end The end of the view. | ||
| 6076 |      * @param {Array} transforms The transformations to apply to the view. | ||
| 6077 |      * @returns {Object} Returns an object containing the `start` and `end` | ||
| 6078 | * positions of the view. | ||
| 6079 | */ | ||
| 6080 |     function getView(start, end, transforms) { | ||
| 6081 | var index = -1, | ||
| 6082 | length = transforms.length; | ||
| 6083 | |||
| 6084 |       while (++index < length) { | ||
| 6085 | var data = transforms[index], | ||
| 6086 | size = data.size; | ||
| 6087 | |||
| 6088 |         switch (data.type) { | ||
| 6089 | case 'drop': start += size; break; | ||
| 6090 | case 'dropRight': end -= size; break; | ||
| 6091 | case 'take': end = nativeMin(end, start + size); break; | ||
| 6092 | case 'takeRight': start = nativeMax(start, end - size); break; | ||
| 6093 | } | ||
| 6094 | } | ||
| 6095 |       return { 'start': start, 'end': end }; | ||
| 6096 | } | ||
| 6097 | |||
| 6098 | /** | ||
| 6099 | * Extracts wrapper details from the `source` body comment. | ||
| 6100 | * | ||
| 6101 | * @private | ||
| 6102 |      * @param {string} source The source to inspect. | ||
| 6103 |      * @returns {Array} Returns the wrapper details. | ||
| 6104 | */ | ||
| 6105 |     function getWrapDetails(source) { | ||
| 6106 | var match = source.match(reWrapDetails); | ||
| 6107 | return match ? match[1].split(reSplitDetails) : []; | ||
| 6108 | } | ||
| 6109 | |||
| 6110 | /** | ||
| 6111 | * Checks if `path` exists on `object`. | ||
| 6112 | * | ||
| 6113 | * @private | ||
| 6114 |      * @param {Object} object The object to query. | ||
| 6115 |      * @param {Array|string} path The path to check. | ||
| 6116 |      * @param {Function} hasFunc The function to check properties. | ||
| 6117 |      * @returns {boolean} Returns `true` if `path` exists, else `false`. | ||
| 6118 | */ | ||
| 6119 |     function hasPath(object, path, hasFunc) { | ||
| 6120 | path = castPath(path, object); | ||
| 6121 | |||
| 6122 | var index = -1, | ||
| 6123 | length = path.length, | ||
| 6124 | result = false; | ||
| 6125 | |||
| 6126 |       while (++index < length) { | ||
| 6127 | var key = toKey(path[index]); | ||
| 6128 |         if (!(result = object != null && hasFunc(object, key))) { | ||
| 6129 | break; | ||
| 6130 | } | ||
| 6131 | object = object[key]; | ||
| 6132 | } | ||
| 6133 |       if (result || ++index != length) { | ||
| 6134 | return result; | ||
| 6135 | } | ||
| 6136 | length = object == null ? 0 : object.length; | ||
| 6137 | return !!length && isLength(length) && isIndex(key, length) && | ||
| 6138 | (isArray(object) || isArguments(object)); | ||
| 6139 | } | ||
| 6140 | |||
| 6141 | /** | ||
| 6142 | * Initializes an array clone. | ||
| 6143 | * | ||
| 6144 | * @private | ||
| 6145 |      * @param {Array} array The array to clone. | ||
| 6146 |      * @returns {Array} Returns the initialized clone. | ||
| 6147 | */ | ||
| 6148 |     function initCloneArray(array) { | ||
| 6149 | var length = array.length, | ||
| 6150 | result = new array.constructor(length); | ||
| 6151 | |||
| 6152 | // Add properties assigned by `RegExp#exec`. | ||
| 6153 |       if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) { | ||
| 6154 | result.index = array.index; | ||
| 6155 | result.input = array.input; | ||
| 6156 | } | ||
| 6157 | return result; | ||
| 6158 | } | ||
| 6159 | |||
| 6160 | /** | ||
| 6161 | * Initializes an object clone. | ||
| 6162 | * | ||
| 6163 | * @private | ||
| 6164 |      * @param {Object} object The object to clone. | ||
| 6165 |      * @returns {Object} Returns the initialized clone. | ||
| 6166 | */ | ||
| 6167 |     function initCloneObject(object) { | ||
| 6168 | return (typeof object.constructor == 'function' && !isPrototype(object)) | ||
| 6169 | ? baseCreate(getPrototype(object)) | ||
| 6170 |         : {}; | ||
| 6171 | } | ||
| 6172 | |||
| 6173 | /** | ||
| 6174 | * Initializes an object clone based on its `toStringTag`. | ||
| 6175 | * | ||
| 6176 | * **Note:** This function only supports cloning values with tags of | ||
| 6177 | * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`. | ||
| 6178 | * | ||
| 6179 | * @private | ||
| 6180 |      * @param {Object} object The object to clone. | ||
| 6181 |      * @param {string} tag The `toStringTag` of the object to clone. | ||
| 6182 |      * @param {boolean} [isDeep] Specify a deep clone. | ||
| 6183 |      * @returns {Object} Returns the initialized clone. | ||
| 6184 | */ | ||
| 6185 |     function initCloneByTag(object, tag, isDeep) { | ||
| 6186 | var Ctor = object.constructor; | ||
| 6187 |       switch (tag) { | ||
| 6188 | case arrayBufferTag: | ||
| 6189 | return cloneArrayBuffer(object); | ||
| 6190 | |||
| 6191 | case boolTag: | ||
| 6192 | case dateTag: | ||
| 6193 | return new Ctor(+object); | ||
| 6194 | |||
| 6195 | case dataViewTag: | ||
| 6196 | return cloneDataView(object, isDeep); | ||
| 6197 | |||
| 6198 | case float32Tag: case float64Tag: | ||
| 6199 | case int8Tag: case int16Tag: case int32Tag: | ||
| 6200 | case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag: | ||
| 6201 | return cloneTypedArray(object, isDeep); | ||
| 6202 | |||
| 6203 | case mapTag: | ||
| 6204 | return new Ctor; | ||
| 6205 | |||
| 6206 | case numberTag: | ||
| 6207 | case stringTag: | ||
| 6208 | return new Ctor(object); | ||
| 6209 | |||
| 6210 | case regexpTag: | ||
| 6211 | return cloneRegExp(object); | ||
| 6212 | |||
| 6213 | case setTag: | ||
| 6214 | return new Ctor; | ||
| 6215 | |||
| 6216 | case symbolTag: | ||
| 6217 | return cloneSymbol(object); | ||
| 6218 | } | ||
| 6219 | } | ||
| 6220 | |||
| 6221 | /** | ||
| 6222 | * Inserts wrapper `details` in a comment at the top of the `source` body. | ||
| 6223 | * | ||
| 6224 | * @private | ||
| 6225 |      * @param {string} source The source to modify. | ||
| 6226 |      * @returns {Array} details The details to insert. | ||
| 6227 |      * @returns {string} Returns the modified source. | ||
| 6228 | */ | ||
| 6229 |     function insertWrapDetails(source, details) { | ||
| 6230 | var length = details.length; | ||
| 6231 |       if (!length) { | ||
| 6232 | return source; | ||
| 6233 | } | ||
| 6234 | var lastIndex = length - 1; | ||
| 6235 | details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex]; | ||
| 6236 | details = details.join(length > 2 ? ', ' : ' '); | ||
| 6237 |       return source.replace(reWrapComment, '{\n/* [wrapped with ' + details + '] */\n'); | ||
| 6238 | } | ||
| 6239 | |||
| 6240 | /** | ||
| 6241 | * Checks if `value` is a flattenable `arguments` object or array. | ||
| 6242 | * | ||
| 6243 | * @private | ||
| 6244 |      * @param {*} value The value to check. | ||
| 6245 |      * @returns {boolean} Returns `true` if `value` is flattenable, else `false`. | ||
| 6246 | */ | ||
| 6247 |     function isFlattenable(value) { | ||
| 6248 | return isArray(value) || isArguments(value) || | ||
| 6249 | !!(spreadableSymbol && value && value[spreadableSymbol]); | ||
| 6250 | } | ||
| 6251 | |||
| 6252 | /** | ||
| 6253 | * Checks if `value` is a valid array-like index. | ||
| 6254 | * | ||
| 6255 | * @private | ||
| 6256 |      * @param {*} value The value to check. | ||
| 6257 |      * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index. | ||
| 6258 |      * @returns {boolean} Returns `true` if `value` is a valid index, else `false`. | ||
| 6259 | */ | ||
| 6260 |     function isIndex(value, length) { | ||
| 6261 | var type = typeof value; | ||
| 6262 | length = length == null ? MAX_SAFE_INTEGER : length; | ||
| 6263 | |||
| 6264 | return !!length && | ||
| 6265 | (type == 'number' || | ||
| 6266 | (type != 'symbol' && reIsUint.test(value))) && | ||
| 6267 | (value > -1 && value % 1 == 0 && value < length); | ||
| 6268 | } | ||
| 6269 | |||
| 6270 | /** | ||
| 6271 | * Checks if the given arguments are from an iteratee call. | ||
| 6272 | * | ||
| 6273 | * @private | ||
| 6274 |      * @param {*} value The potential iteratee value argument. | ||
| 6275 |      * @param {*} index The potential iteratee index or key argument. | ||
| 6276 |      * @param {*} object The potential iteratee object argument. | ||
| 6277 |      * @returns {boolean} Returns `true` if the arguments are from an iteratee call, | ||
| 6278 | * else `false`. | ||
| 6279 | */ | ||
| 6280 |     function isIterateeCall(value, index, object) { | ||
| 6281 |       if (!isObject(object)) { | ||
| 6282 | return false; | ||
| 6283 | } | ||
| 6284 | var type = typeof index; | ||
| 6285 | if (type == 'number' | ||
| 6286 | ? (isArrayLike(object) && isIndex(index, object.length)) | ||
| 6287 | : (type == 'string' && index in object) | ||
| 6288 |           ) { | ||
| 6289 | return eq(object[index], value); | ||
| 6290 | } | ||
| 6291 | return false; | ||
| 6292 | } | ||
| 6293 | |||
| 6294 | /** | ||
| 6295 | * Checks if `value` is a property name and not a property path. | ||
| 6296 | * | ||
| 6297 | * @private | ||
| 6298 |      * @param {*} value The value to check. | ||
| 6299 |      * @param {Object} [object] The object to query keys on. | ||
| 6300 |      * @returns {boolean} Returns `true` if `value` is a property name, else `false`. | ||
| 6301 | */ | ||
| 6302 |     function isKey(value, object) { | ||
| 6303 |       if (isArray(value)) { | ||
| 6304 | return false; | ||
| 6305 | } | ||
| 6306 | var type = typeof value; | ||
| 6307 | if (type == 'number' || type == 'symbol' || type == 'boolean' || | ||
| 6308 |           value == null || isSymbol(value)) { | ||
| 6309 | return true; | ||
| 6310 | } | ||
| 6311 | return reIsPlainProp.test(value) || !reIsDeepProp.test(value) || | ||
| 6312 | (object != null && value in Object(object)); | ||
| 6313 | } | ||
| 6314 | |||
| 6315 | /** | ||
| 6316 | * Checks if `value` is suitable for use as unique object key. | ||
| 6317 | * | ||
| 6318 | * @private | ||
| 6319 |      * @param {*} value The value to check. | ||
| 6320 |      * @returns {boolean} Returns `true` if `value` is suitable, else `false`. | ||
| 6321 | */ | ||
| 6322 |     function isKeyable(value) { | ||
| 6323 | var type = typeof value; | ||
| 6324 | return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean') | ||
| 6325 | ? (value !== '__proto__') | ||
| 6326 | : (value === null); | ||
| 6327 | } | ||
| 6328 | |||
| 6329 | /** | ||
| 6330 | * Checks if `func` has a lazy counterpart. | ||
| 6331 | * | ||
| 6332 | * @private | ||
| 6333 |      * @param {Function} func The function to check. | ||
| 6334 |      * @returns {boolean} Returns `true` if `func` has a lazy counterpart, | ||
| 6335 | * else `false`. | ||
| 6336 | */ | ||
| 6337 |     function isLaziable(func) { | ||
| 6338 | var funcName = getFuncName(func), | ||
| 6339 | other = lodash[funcName]; | ||
| 6340 | |||
| 6341 |       if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) { | ||
| 6342 | return false; | ||
| 6343 | } | ||
| 6344 |       if (func === other) { | ||
| 6345 | return true; | ||
| 6346 | } | ||
| 6347 | var data = getData(other); | ||
| 6348 | return !!data && func === data[0]; | ||
| 6349 | } | ||
| 6350 | |||
| 6351 | /** | ||
| 6352 | * Checks if `func` has its source masked. | ||
| 6353 | * | ||
| 6354 | * @private | ||
| 6355 |      * @param {Function} func The function to check. | ||
| 6356 |      * @returns {boolean} Returns `true` if `func` is masked, else `false`. | ||
| 6357 | */ | ||
| 6358 |     function isMasked(func) { | ||
| 6359 | return !!maskSrcKey && (maskSrcKey in func); | ||
| 6360 | } | ||
| 6361 | |||
| 6362 | /** | ||
| 6363 | * Checks if `func` is capable of being masked. | ||
| 6364 | * | ||
| 6365 | * @private | ||
| 6366 |      * @param {*} value The value to check. | ||
| 6367 |      * @returns {boolean} Returns `true` if `func` is maskable, else `false`. | ||
| 6368 | */ | ||
| 6369 | var isMaskable = coreJsData ? isFunction : stubFalse; | ||
| 6370 | |||
| 6371 | /** | ||
| 6372 | * Checks if `value` is likely a prototype object. | ||
| 6373 | * | ||
| 6374 | * @private | ||
| 6375 |      * @param {*} value The value to check. | ||
| 6376 |      * @returns {boolean} Returns `true` if `value` is a prototype, else `false`. | ||
| 6377 | */ | ||
| 6378 |     function isPrototype(value) { | ||
| 6379 | var Ctor = value && value.constructor, | ||
| 6380 | proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto; | ||
| 6381 | |||
| 6382 | return value === proto; | ||
| 6383 | } | ||
| 6384 | |||
| 6385 | /** | ||
| 6386 | * Checks if `value` is suitable for strict equality comparisons, i.e. `===`. | ||
| 6387 | * | ||
| 6388 | * @private | ||
| 6389 |      * @param {*} value The value to check. | ||
| 6390 |      * @returns {boolean} Returns `true` if `value` if suitable for strict | ||
| 6391 | * equality comparisons, else `false`. | ||
| 6392 | */ | ||
| 6393 |     function isStrictComparable(value) { | ||
| 6394 | return value === value && !isObject(value); | ||
| 6395 | } | ||
| 6396 | |||
| 6397 | /** | ||
| 6398 | * A specialized version of `matchesProperty` for source values suitable | ||
| 6399 | * for strict equality comparisons, i.e. `===`. | ||
| 6400 | * | ||
| 6401 | * @private | ||
| 6402 |      * @param {string} key The key of the property to get. | ||
| 6403 |      * @param {*} srcValue The value to match. | ||
| 6404 |      * @returns {Function} Returns the new spec function. | ||
| 6405 | */ | ||
| 6406 |     function matchesStrictComparable(key, srcValue) { | ||
| 6407 |       return function(object) { | ||
| 6408 |         if (object == null) { | ||
| 6409 | return false; | ||
| 6410 | } | ||
| 6411 | return object[key] === srcValue && | ||
| 6412 | (srcValue !== undefined || (key in Object(object))); | ||
| 6413 | }; | ||
| 6414 | } | ||
| 6415 | |||
| 6416 | /** | ||
| 6417 | * A specialized version of `_.memoize` which clears the memoized function's | ||
| 6418 | * cache when it exceeds `MAX_MEMOIZE_SIZE`. | ||
| 6419 | * | ||
| 6420 | * @private | ||
| 6421 |      * @param {Function} func The function to have its output memoized. | ||
| 6422 |      * @returns {Function} Returns the new memoized function. | ||
| 6423 | */ | ||
| 6424 |     function memoizeCapped(func) { | ||
| 6425 |       var result = memoize(func, function(key) { | ||
| 6426 |         if (cache.size === MAX_MEMOIZE_SIZE) { | ||
| 6427 | cache.clear(); | ||
| 6428 | } | ||
| 6429 | return key; | ||
| 6430 | }); | ||
| 6431 | |||
| 6432 | var cache = result.cache; | ||
| 6433 | return result; | ||
| 6434 | } | ||
| 6435 | |||
| 6436 | /** | ||
| 6437 | * Merges the function metadata of `source` into `data`. | ||
| 6438 | * | ||
| 6439 | * Merging metadata reduces the number of wrappers used to invoke a function. | ||
| 6440 | * This is possible because methods like `_.bind`, `_.curry`, and `_.partial` | ||
| 6441 | * may be applied regardless of execution order. Methods like `_.ary` and | ||
| 6442 | * `_.rearg` modify function arguments, making the order in which they are | ||
| 6443 | * executed important, preventing the merging of metadata. However, we make | ||
| 6444 | * an exception for a safe combined case where curried functions have `_.ary` | ||
| 6445 | * and or `_.rearg` applied. | ||
| 6446 | * | ||
| 6447 | * @private | ||
| 6448 |      * @param {Array} data The destination metadata. | ||
| 6449 |      * @param {Array} source The source metadata. | ||
| 6450 |      * @returns {Array} Returns `data`. | ||
| 6451 | */ | ||
| 6452 |     function mergeData(data, source) { | ||
| 6453 | var bitmask = data[1], | ||
| 6454 | srcBitmask = source[1], | ||
| 6455 | newBitmask = bitmask | srcBitmask, | ||
| 6456 | isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG); | ||
| 6457 | |||
| 6458 | var isCombo = | ||
| 6459 | ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) || | ||
| 6460 | ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) || | ||
| 6461 | ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG)); | ||
| 6462 | |||
| 6463 | // Exit early if metadata can't be merged. | ||
| 6464 |       if (!(isCommon || isCombo)) { | ||
| 6465 | return data; | ||
| 6466 | } | ||
| 6467 | // Use source `thisArg` if available. | ||
| 6468 |       if (srcBitmask & WRAP_BIND_FLAG) { | ||
| 6469 | data[2] = source[2]; | ||
| 6470 | // Set when currying a bound function. | ||
| 6471 | newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG; | ||
| 6472 | } | ||
| 6473 | // Compose partial arguments. | ||
| 6474 | var value = source[3]; | ||
| 6475 |       if (value) { | ||
| 6476 | var partials = data[3]; | ||
| 6477 | data[3] = partials ? composeArgs(partials, value, source[4]) : value; | ||
| 6478 | data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4]; | ||
| 6479 | } | ||
| 6480 | // Compose partial right arguments. | ||
| 6481 | value = source[5]; | ||
| 6482 |       if (value) { | ||
| 6483 | partials = data[5]; | ||
| 6484 | data[5] = partials ? composeArgsRight(partials, value, source[6]) : value; | ||
| 6485 | data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6]; | ||
| 6486 | } | ||
| 6487 | // Use source `argPos` if available. | ||
| 6488 | value = source[7]; | ||
| 6489 |       if (value) { | ||
| 6490 | data[7] = value; | ||
| 6491 | } | ||
| 6492 | // Use source `ary` if it's smaller. | ||
| 6493 |       if (srcBitmask & WRAP_ARY_FLAG) { | ||
| 6494 | data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]); | ||
| 6495 | } | ||
| 6496 | // Use source `arity` if one is not provided. | ||
| 6497 |       if (data[9] == null) { | ||
| 6498 | data[9] = source[9]; | ||
| 6499 | } | ||
| 6500 | // Use source `func` and merge bitmasks. | ||
| 6501 | data[0] = source[0]; | ||
| 6502 | data[1] = newBitmask; | ||
| 6503 | |||
| 6504 | return data; | ||
| 6505 | } | ||
| 6506 | |||
| 6507 | /** | ||
| 6508 | * This function is like | ||
| 6509 | * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) | ||
| 6510 | * except that it includes inherited enumerable properties. | ||
| 6511 | * | ||
| 6512 | * @private | ||
| 6513 |      * @param {Object} object The object to query. | ||
| 6514 |      * @returns {Array} Returns the array of property names. | ||
| 6515 | */ | ||
| 6516 |     function nativeKeysIn(object) { | ||
| 6517 | var result = []; | ||
| 6518 |       if (object != null) { | ||
| 6519 |         for (var key in Object(object)) { | ||
| 6520 | result.push(key); | ||
| 6521 | } | ||
| 6522 | } | ||
| 6523 | return result; | ||
| 6524 | } | ||
| 6525 | |||
| 6526 | /** | ||
| 6527 | * Converts `value` to a string using `Object.prototype.toString`. | ||
| 6528 | * | ||
| 6529 | * @private | ||
| 6530 |      * @param {*} value The value to convert. | ||
| 6531 |      * @returns {string} Returns the converted string. | ||
| 6532 | */ | ||
| 6533 |     function objectToString(value) { | ||
| 6534 | return nativeObjectToString.call(value); | ||
| 6535 | } | ||
| 6536 | |||
| 6537 | /** | ||
| 6538 | * A specialized version of `baseRest` which transforms the rest array. | ||
| 6539 | * | ||
| 6540 | * @private | ||
| 6541 |      * @param {Function} func The function to apply a rest parameter to. | ||
| 6542 |      * @param {number} [start=func.length-1] The start position of the rest parameter. | ||
| 6543 |      * @param {Function} transform The rest array transform. | ||
| 6544 |      * @returns {Function} Returns the new function. | ||
| 6545 | */ | ||
| 6546 |     function overRest(func, start, transform) { | ||
| 6547 | start = nativeMax(start === undefined ? (func.length - 1) : start, 0); | ||
| 6548 |       return function() { | ||
| 6549 | var args = arguments, | ||
| 6550 | index = -1, | ||
| 6551 | length = nativeMax(args.length - start, 0), | ||
| 6552 | array = Array(length); | ||
| 6553 | |||
| 6554 |         while (++index < length) { | ||
| 6555 | array[index] = args[start + index]; | ||
| 6556 | } | ||
| 6557 | index = -1; | ||
| 6558 | var otherArgs = Array(start + 1); | ||
| 6559 |         while (++index < start) { | ||
| 6560 | otherArgs[index] = args[index]; | ||
| 6561 | } | ||
| 6562 | otherArgs[start] = transform(array); | ||
| 6563 | return apply(func, this, otherArgs); | ||
| 6564 | }; | ||
| 6565 | } | ||
| 6566 | |||
| 6567 | /** | ||
| 6568 | * Gets the parent value at `path` of `object`. | ||
| 6569 | * | ||
| 6570 | * @private | ||
| 6571 |      * @param {Object} object The object to query. | ||
| 6572 |      * @param {Array} path The path to get the parent value of. | ||
| 6573 |      * @returns {*} Returns the parent value. | ||
| 6574 | */ | ||
| 6575 |     function parent(object, path) { | ||
| 6576 | return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1)); | ||
| 6577 | } | ||
| 6578 | |||
| 6579 | /** | ||
| 6580 | * Reorder `array` according to the specified indexes where the element at | ||
| 6581 | * the first index is assigned as the first element, the element at | ||
| 6582 | * the second index is assigned as the second element, and so on. | ||
| 6583 | * | ||
| 6584 | * @private | ||
| 6585 |      * @param {Array} array The array to reorder. | ||
| 6586 |      * @param {Array} indexes The arranged array indexes. | ||
| 6587 |      * @returns {Array} Returns `array`. | ||
| 6588 | */ | ||
| 6589 |     function reorder(array, indexes) { | ||
| 6590 | var arrLength = array.length, | ||
| 6591 | length = nativeMin(indexes.length, arrLength), | ||
| 6592 | oldArray = copyArray(array); | ||
| 6593 | |||
| 6594 |       while (length--) { | ||
| 6595 | var index = indexes[length]; | ||
| 6596 | array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined; | ||
| 6597 | } | ||
| 6598 | return array; | ||
| 6599 | } | ||
| 6600 | |||
| 6601 | /** | ||
| 6602 | * Gets the value at `key`, unless `key` is "__proto__" or "constructor". | ||
| 6603 | * | ||
| 6604 | * @private | ||
| 6605 |      * @param {Object} object The object to query. | ||
| 6606 |      * @param {string} key The key of the property to get. | ||
| 6607 |      * @returns {*} Returns the property value. | ||
| 6608 | */ | ||
| 6609 |     function safeGet(object, key) { | ||
| 6610 |       if (key === 'constructor' && typeof object[key] === 'function') { | ||
| 6611 | return; | ||
| 6612 | } | ||
| 6613 | |||
| 6614 |       if (key == '__proto__') { | ||
| 6615 | return; | ||
| 6616 | } | ||
| 6617 | |||
| 6618 | return object[key]; | ||
| 6619 | } | ||
| 6620 | |||
| 6621 | /** | ||
| 6622 | * Sets metadata for `func`. | ||
| 6623 | * | ||
| 6624 | * **Note:** If this function becomes hot, i.e. is invoked a lot in a short | ||
| 6625 | * period of time, it will trip its breaker and transition to an identity | ||
| 6626 | * function to avoid garbage collection pauses in V8. See | ||
| 6627 | * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070) | ||
| 6628 | * for more details. | ||
| 6629 | * | ||
| 6630 | * @private | ||
| 6631 |      * @param {Function} func The function to associate metadata with. | ||
| 6632 |      * @param {*} data The metadata. | ||
| 6633 |      * @returns {Function} Returns `func`. | ||
| 6634 | */ | ||
| 6635 | var setData = shortOut(baseSetData); | ||
| 6636 | |||
| 6637 | /** | ||
| 6638 | * A simple wrapper around the global [`setTimeout`](https://mdn.io/setTimeout). | ||
| 6639 | * | ||
| 6640 | * @private | ||
| 6641 |      * @param {Function} func The function to delay. | ||
| 6642 |      * @param {number} wait The number of milliseconds to delay invocation. | ||
| 6643 |      * @returns {number|Object} Returns the timer id or timeout object. | ||
| 6644 | */ | ||
| 6645 |     var setTimeout = ctxSetTimeout || function(func, wait) { | ||
| 6646 | return root.setTimeout(func, wait); | ||
| 6647 | }; | ||
| 6648 | |||
| 6649 | /** | ||
| 6650 | * Sets the `toString` method of `func` to return `string`. | ||
| 6651 | * | ||
| 6652 | * @private | ||
| 6653 |      * @param {Function} func The function to modify. | ||
| 6654 |      * @param {Function} string The `toString` result. | ||
| 6655 |      * @returns {Function} Returns `func`. | ||
| 6656 | */ | ||
| 6657 | var setToString = shortOut(baseSetToString); | ||
| 6658 | |||
| 6659 | /** | ||
| 6660 | * Sets the `toString` method of `wrapper` to mimic the source of `reference` | ||
| 6661 | * with wrapper details in a comment at the top of the source body. | ||
| 6662 | * | ||
| 6663 | * @private | ||
| 6664 |      * @param {Function} wrapper The function to modify. | ||
| 6665 |      * @param {Function} reference The reference function. | ||
| 6666 |      * @param {number} bitmask The bitmask flags. See `createWrap` for more details. | ||
| 6667 |      * @returns {Function} Returns `wrapper`. | ||
| 6668 | */ | ||
| 6669 |     function setWrapToString(wrapper, reference, bitmask) { | ||
| 6670 | var source = (reference + ''); | ||
| 6671 | return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask))); | ||
| 6672 | } | ||
| 6673 | |||
| 6674 | /** | ||
| 6675 | * Creates a function that'll short out and invoke `identity` instead | ||
| 6676 | * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN` | ||
| 6677 | * milliseconds. | ||
| 6678 | * | ||
| 6679 | * @private | ||
| 6680 |      * @param {Function} func The function to restrict. | ||
| 6681 |      * @returns {Function} Returns the new shortable function. | ||
| 6682 | */ | ||
| 6683 |     function shortOut(func) { | ||
| 6684 | var count = 0, | ||
| 6685 | lastCalled = 0; | ||
| 6686 | |||
| 6687 |       return function() { | ||
| 6688 | var stamp = nativeNow(), | ||
| 6689 | remaining = HOT_SPAN - (stamp - lastCalled); | ||
| 6690 | |||
| 6691 | lastCalled = stamp; | ||
| 6692 |         if (remaining > 0) { | ||
| 6693 |           if (++count >= HOT_COUNT) { | ||
| 6694 | return arguments[0]; | ||
| 6695 | } | ||
| 6696 |         } else { | ||
| 6697 | count = 0; | ||
| 6698 | } | ||
| 6699 | return func.apply(undefined, arguments); | ||
| 6700 | }; | ||
| 6701 | } | ||
| 6702 | |||
| 6703 | /** | ||
| 6704 | * A specialized version of `_.shuffle` which mutates and sets the size of `array`. | ||
| 6705 | * | ||
| 6706 | * @private | ||
| 6707 |      * @param {Array} array The array to shuffle. | ||
| 6708 |      * @param {number} [size=array.length] The size of `array`. | ||
| 6709 |      * @returns {Array} Returns `array`. | ||
| 6710 | */ | ||
| 6711 |     function shuffleSelf(array, size) { | ||
| 6712 | var index = -1, | ||
| 6713 | length = array.length, | ||
| 6714 | lastIndex = length - 1; | ||
| 6715 | |||
| 6716 | size = size === undefined ? length : size; | ||
| 6717 |       while (++index < size) { | ||
| 6718 | var rand = baseRandom(index, lastIndex), | ||
| 6719 | value = array[rand]; | ||
| 6720 | |||
| 6721 | array[rand] = array[index]; | ||
| 6722 | array[index] = value; | ||
| 6723 | } | ||
| 6724 | array.length = size; | ||
| 6725 | return array; | ||
| 6726 | } | ||
| 6727 | |||
| 6728 | /** | ||
| 6729 | * Converts `string` to a property path array. | ||
| 6730 | * | ||
| 6731 | * @private | ||
| 6732 |      * @param {string} string The string to convert. | ||
| 6733 |      * @returns {Array} Returns the property path array. | ||
| 6734 | */ | ||
| 6735 |     var stringToPath = memoizeCapped(function(string) { | ||
| 6736 | var result = []; | ||
| 6737 |       if (string.charCodeAt(0) === 46 /* . */) { | ||
| 6738 |         result.push(''); | ||
| 6739 | } | ||
| 6740 |       string.replace(rePropName, function(match, number, quote, subString) { | ||
| 6741 | result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match)); | ||
| 6742 | }); | ||
| 6743 | return result; | ||
| 6744 | }); | ||
| 6745 | |||
| 6746 | /** | ||
| 6747 | * Converts `value` to a string key if it's not a string or symbol. | ||
| 6748 | * | ||
| 6749 | * @private | ||
| 6750 |      * @param {*} value The value to inspect. | ||
| 6751 |      * @returns {string|symbol} Returns the key. | ||
| 6752 | */ | ||
| 6753 |     function toKey(value) { | ||
| 6754 |       if (typeof value == 'string' || isSymbol(value)) { | ||
| 6755 | return value; | ||
| 6756 | } | ||
| 6757 | var result = (value + ''); | ||
| 6758 | return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; | ||
| 6759 | } | ||
| 6760 | |||
| 6761 | /** | ||
| 6762 | * Converts `func` to its source code. | ||
| 6763 | * | ||
| 6764 | * @private | ||
| 6765 |      * @param {Function} func The function to convert. | ||
| 6766 |      * @returns {string} Returns the source code. | ||
| 6767 | */ | ||
| 6768 |     function toSource(func) { | ||
| 6769 |       if (func != null) { | ||
| 6770 |         try { | ||
| 6771 | return funcToString.call(func); | ||
| 6772 |         } catch (e) {} | ||
| 6773 |         try { | ||
| 6774 | return (func + ''); | ||
| 6775 |         } catch (e) {} | ||
| 6776 | } | ||
| 6777 | return ''; | ||
| 6778 | } | ||
| 6779 | |||
| 6780 | /** | ||
| 6781 | * Updates wrapper `details` based on `bitmask` flags. | ||
| 6782 | * | ||
| 6783 | * @private | ||
| 6784 |      * @returns {Array} details The details to modify. | ||
| 6785 |      * @param {number} bitmask The bitmask flags. See `createWrap` for more details. | ||
| 6786 |      * @returns {Array} Returns `details`. | ||
| 6787 | */ | ||
| 6788 |     function updateWrapDetails(details, bitmask) { | ||
| 6789 |       arrayEach(wrapFlags, function(pair) { | ||
| 6790 | var value = '_.' + pair[0]; | ||
| 6791 |         if ((bitmask & pair[1]) && !arrayIncludes(details, value)) { | ||
| 6792 | details.push(value); | ||
| 6793 | } | ||
| 6794 | }); | ||
| 6795 | return details.sort(); | ||
| 6796 | } | ||
| 6797 | |||
| 6798 | /** | ||
| 6799 | * Creates a clone of `wrapper`. | ||
| 6800 | * | ||
| 6801 | * @private | ||
| 6802 |      * @param {Object} wrapper The wrapper to clone. | ||
| 6803 |      * @returns {Object} Returns the cloned wrapper. | ||
| 6804 | */ | ||
| 6805 |     function wrapperClone(wrapper) { | ||
| 6806 |       if (wrapper instanceof LazyWrapper) { | ||
| 6807 | return wrapper.clone(); | ||
| 6808 | } | ||
| 6809 | var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__); | ||
| 6810 | result.__actions__ = copyArray(wrapper.__actions__); | ||
| 6811 | result.__index__ = wrapper.__index__; | ||
| 6812 | result.__values__ = wrapper.__values__; | ||
| 6813 | return result; | ||
| 6814 | } | ||
| 6815 | |||
| 6816 | /*------------------------------------------------------------------------*/ | ||
| 6817 | |||
| 6818 | /** | ||
| 6819 | * Creates an array of elements split into groups the length of `size`. | ||
| 6820 | * If `array` can't be split evenly, the final chunk will be the remaining | ||
| 6821 | * elements. | ||
| 6822 | * | ||
| 6823 | * @static | ||
| 6824 | * @memberOf _ | ||
| 6825 | * @since 3.0.0 | ||
| 6826 | * @category Array | ||
| 6827 |      * @param {Array} array The array to process. | ||
| 6828 |      * @param {number} [size=1] The length of each chunk | ||
| 6829 |      * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. | ||
| 6830 |      * @returns {Array} Returns the new array of chunks. | ||
| 6831 | * @example | ||
| 6832 | * | ||
| 6833 | * _.chunk(['a', 'b', 'c', 'd'], 2); | ||
| 6834 | * // => [['a', 'b'], ['c', 'd']] | ||
| 6835 | * | ||
| 6836 | * _.chunk(['a', 'b', 'c', 'd'], 3); | ||
| 6837 | * // => [['a', 'b', 'c'], ['d']] | ||
| 6838 | */ | ||
| 6839 |     function chunk(array, size, guard) { | ||
| 6840 |       if ((guard ? isIterateeCall(array, size, guard) : size === undefined)) { | ||
| 6841 | size = 1; | ||
| 6842 |       } else { | ||
| 6843 | size = nativeMax(toInteger(size), 0); | ||
| 6844 | } | ||
| 6845 | var length = array == null ? 0 : array.length; | ||
| 6846 |       if (!length || size < 1) { | ||
| 6847 | return []; | ||
| 6848 | } | ||
| 6849 | var index = 0, | ||
| 6850 | resIndex = 0, | ||
| 6851 | result = Array(nativeCeil(length / size)); | ||
| 6852 | |||
| 6853 |       while (index < length) { | ||
| 6854 | result[resIndex++] = baseSlice(array, index, (index += size)); | ||
| 6855 | } | ||
| 6856 | return result; | ||
| 6857 | } | ||
| 6858 | |||
| 6859 | /** | ||
| 6860 | * Creates an array with all falsey values removed. The values `false`, `null`, | ||
| 6861 | * `0`, `""`, `undefined`, and `NaN` are falsey. | ||
| 6862 | * | ||
| 6863 | * @static | ||
| 6864 | * @memberOf _ | ||
| 6865 | * @since 0.1.0 | ||
| 6866 | * @category Array | ||
| 6867 |      * @param {Array} array The array to compact. | ||
| 6868 |      * @returns {Array} Returns the new array of filtered values. | ||
| 6869 | * @example | ||
| 6870 | * | ||
| 6871 | * _.compact([0, 1, false, 2, '', 3]); | ||
| 6872 | * // => [1, 2, 3] | ||
| 6873 | */ | ||
| 6874 |     function compact(array) { | ||
| 6875 | var index = -1, | ||
| 6876 | length = array == null ? 0 : array.length, | ||
| 6877 | resIndex = 0, | ||
| 6878 | result = []; | ||
| 6879 | |||
| 6880 |       while (++index < length) { | ||
| 6881 | var value = array[index]; | ||
| 6882 |         if (value) { | ||
| 6883 | result[resIndex++] = value; | ||
| 6884 | } | ||
| 6885 | } | ||
| 6886 | return result; | ||
| 6887 | } | ||
| 6888 | |||
| 6889 | /** | ||
| 6890 | * Creates a new array concatenating `array` with any additional arrays | ||
| 6891 | * and/or values. | ||
| 6892 | * | ||
| 6893 | * @static | ||
| 6894 | * @memberOf _ | ||
| 6895 | * @since 4.0.0 | ||
| 6896 | * @category Array | ||
| 6897 |      * @param {Array} array The array to concatenate. | ||
| 6898 |      * @param {...*} [values] The values to concatenate. | ||
| 6899 |      * @returns {Array} Returns the new concatenated array. | ||
| 6900 | * @example | ||
| 6901 | * | ||
| 6902 | * var array = [1]; | ||
| 6903 | * var other = _.concat(array, 2, [3], [[4]]); | ||
| 6904 | * | ||
| 6905 | * console.log(other); | ||
| 6906 | * // => [1, 2, 3, [4]] | ||
| 6907 | * | ||
| 6908 | * console.log(array); | ||
| 6909 | * // => [1] | ||
| 6910 | */ | ||
| 6911 |     function concat() { | ||
| 6912 | var length = arguments.length; | ||
| 6913 |       if (!length) { | ||
| 6914 | return []; | ||
| 6915 | } | ||
| 6916 | var args = Array(length - 1), | ||
| 6917 | array = arguments[0], | ||
| 6918 | index = length; | ||
| 6919 | |||
| 6920 |       while (index--) { | ||
| 6921 | args[index - 1] = arguments[index]; | ||
| 6922 | } | ||
| 6923 | return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1)); | ||
| 6924 | } | ||
| 6925 | |||
| 6926 | /** | ||
| 6927 | * Creates an array of `array` values not included in the other given arrays | ||
| 6928 | * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) | ||
| 6929 | * for equality comparisons. The order and references of result values are | ||
| 6930 | * determined by the first array. | ||
| 6931 | * | ||
| 6932 | * **Note:** Unlike `_.pullAll`, this method returns a new array. | ||
| 6933 | * | ||
| 6934 | * @static | ||
| 6935 | * @memberOf _ | ||
| 6936 | * @since 0.1.0 | ||
| 6937 | * @category Array | ||
| 6938 |      * @param {Array} array The array to inspect. | ||
| 6939 |      * @param {...Array} [values] The values to exclude. | ||
| 6940 |      * @returns {Array} Returns the new array of filtered values. | ||
| 6941 | * @see _.without, _.xor | ||
| 6942 | * @example | ||
| 6943 | * | ||
| 6944 | * _.difference([2, 1], [2, 3]); | ||
| 6945 | * // => [1] | ||
| 6946 | */ | ||
| 6947 |     var difference = baseRest(function(array, values) { | ||
| 6948 | return isArrayLikeObject(array) | ||
| 6949 | ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true)) | ||
| 6950 | : []; | ||
| 6951 | }); | ||
| 6952 | |||
| 6953 | /** | ||
| 6954 | * This method is like `_.difference` except that it accepts `iteratee` which | ||
| 6955 | * is invoked for each element of `array` and `values` to generate the criterion | ||
| 6956 | * by which they're compared. The order and references of result values are | ||
| 6957 | * determined by the first array. The iteratee is invoked with one argument: | ||
| 6958 | * (value). | ||
| 6959 | * | ||
| 6960 | * **Note:** Unlike `_.pullAllBy`, this method returns a new array. | ||
| 6961 | * | ||
| 6962 | * @static | ||
| 6963 | * @memberOf _ | ||
| 6964 | * @since 4.0.0 | ||
| 6965 | * @category Array | ||
| 6966 |      * @param {Array} array The array to inspect. | ||
| 6967 |      * @param {...Array} [values] The values to exclude. | ||
| 6968 |      * @param {Function} [iteratee=_.identity] The iteratee invoked per element. | ||
| 6969 |      * @returns {Array} Returns the new array of filtered values. | ||
| 6970 | * @example | ||
| 6971 | * | ||
| 6972 | * _.differenceBy([2.1, 1.2], [2.3, 3.4], Math.floor); | ||
| 6973 | * // => [1.2] | ||
| 6974 | * | ||
| 6975 | * // The `_.property` iteratee shorthand. | ||
| 6976 |      * _.differenceBy([{ 'x': 2 }, { 'x': 1 }], [{ 'x': 1 }], 'x'); | ||
| 6977 |      * // => [{ 'x': 2 }] | ||
| 6978 | */ | ||
| 6979 |     var differenceBy = baseRest(function(array, values) { | ||
| 6980 | var iteratee = last(values); | ||
| 6981 |       if (isArrayLikeObject(iteratee)) { | ||
| 6982 | iteratee = undefined; | ||
| 6983 | } | ||
| 6984 | return isArrayLikeObject(array) | ||
| 6985 | ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), getIteratee(iteratee, 2)) | ||
| 6986 | : []; | ||
| 6987 | }); | ||
| 6988 | |||
| 6989 | /** | ||
| 6990 | * This method is like `_.difference` except that it accepts `comparator` | ||
| 6991 | * which is invoked to compare elements of `array` to `values`. The order and | ||
| 6992 | * references of result values are determined by the first array. The comparator | ||
| 6993 | * is invoked with two arguments: (arrVal, othVal). | ||
| 6994 | * | ||
| 6995 | * **Note:** Unlike `_.pullAllWith`, this method returns a new array. | ||
| 6996 | * | ||
| 6997 | * @static | ||
| 6998 | * @memberOf _ | ||
| 6999 | * @since 4.0.0 | ||
| 7000 | * @category Array | ||
| 7001 |      * @param {Array} array The array to inspect. | ||
| 7002 |      * @param {...Array} [values] The values to exclude. | ||
| 7003 |      * @param {Function} [comparator] The comparator invoked per element. | ||
| 7004 |      * @returns {Array} Returns the new array of filtered values. | ||
| 7005 | * @example | ||
| 7006 | * | ||
| 7007 |      * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]; | ||
| 7008 | * | ||
| 7009 |      * _.differenceWith(objects, [{ 'x': 1, 'y': 2 }], _.isEqual); | ||
| 7010 |      * // => [{ 'x': 2, 'y': 1 }] | ||
| 7011 | */ | ||
| 7012 |     var differenceWith = baseRest(function(array, values) { | ||
| 7013 | var comparator = last(values); | ||
| 7014 |       if (isArrayLikeObject(comparator)) { | ||
| 7015 | comparator = undefined; | ||
| 7016 | } | ||
| 7017 | return isArrayLikeObject(array) | ||
| 7018 | ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), undefined, comparator) | ||
| 7019 | : []; | ||
| 7020 | }); | ||
| 7021 | |||
| 7022 | /** | ||
| 7023 | * Creates a slice of `array` with `n` elements dropped from the beginning. | ||
| 7024 | * | ||
| 7025 | * @static | ||
| 7026 | * @memberOf _ | ||
| 7027 | * @since 0.5.0 | ||
| 7028 | * @category Array | ||
| 7029 |      * @param {Array} array The array to query. | ||
| 7030 |      * @param {number} [n=1] The number of elements to drop. | ||
| 7031 |      * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. | ||
| 7032 |      * @returns {Array} Returns the slice of `array`. | ||
| 7033 | * @example | ||
| 7034 | * | ||
| 7035 | * _.drop([1, 2, 3]); | ||
| 7036 | * // => [2, 3] | ||
| 7037 | * | ||
| 7038 | * _.drop([1, 2, 3], 2); | ||
| 7039 | * // => [3] | ||
| 7040 | * | ||
| 7041 | * _.drop([1, 2, 3], 5); | ||
| 7042 | * // => [] | ||
| 7043 | * | ||
| 7044 | * _.drop([1, 2, 3], 0); | ||
| 7045 | * // => [1, 2, 3] | ||
| 7046 | */ | ||
| 7047 |     function drop(array, n, guard) { | ||
| 7048 | var length = array == null ? 0 : array.length; | ||
| 7049 |       if (!length) { | ||
| 7050 | return []; | ||
| 7051 | } | ||
| 7052 | n = (guard || n === undefined) ? 1 : toInteger(n); | ||
| 7053 | return baseSlice(array, n < 0 ? 0 : n, length); | ||
| 7054 | } | ||
| 7055 | |||
| 7056 | /** | ||
| 7057 | * Creates a slice of `array` with `n` elements dropped from the end. | ||
| 7058 | * | ||
| 7059 | * @static | ||
| 7060 | * @memberOf _ | ||
| 7061 | * @since 3.0.0 | ||
| 7062 | * @category Array | ||
| 7063 |      * @param {Array} array The array to query. | ||
| 7064 |      * @param {number} [n=1] The number of elements to drop. | ||
| 7065 |      * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. | ||
| 7066 |      * @returns {Array} Returns the slice of `array`. | ||
| 7067 | * @example | ||
| 7068 | * | ||
| 7069 | * _.dropRight([1, 2, 3]); | ||
| 7070 | * // => [1, 2] | ||
| 7071 | * | ||
| 7072 | * _.dropRight([1, 2, 3], 2); | ||
| 7073 | * // => [1] | ||
| 7074 | * | ||
| 7075 | * _.dropRight([1, 2, 3], 5); | ||
| 7076 | * // => [] | ||
| 7077 | * | ||
| 7078 | * _.dropRight([1, 2, 3], 0); | ||
| 7079 | * // => [1, 2, 3] | ||
| 7080 | */ | ||
| 7081 |     function dropRight(array, n, guard) { | ||
| 7082 | var length = array == null ? 0 : array.length; | ||
| 7083 |       if (!length) { | ||
| 7084 | return []; | ||
| 7085 | } | ||
| 7086 | n = (guard || n === undefined) ? 1 : toInteger(n); | ||
| 7087 | n = length - n; | ||
| 7088 | return baseSlice(array, 0, n < 0 ? 0 : n); | ||
| 7089 | } | ||
| 7090 | |||
| 7091 | /** | ||
| 7092 | * Creates a slice of `array` excluding elements dropped from the end. | ||
| 7093 | * Elements are dropped until `predicate` returns falsey. The predicate is | ||
| 7094 | * invoked with three arguments: (value, index, array). | ||
| 7095 | * | ||
| 7096 | * @static | ||
| 7097 | * @memberOf _ | ||
| 7098 | * @since 3.0.0 | ||
| 7099 | * @category Array | ||
| 7100 |      * @param {Array} array The array to query. | ||
| 7101 |      * @param {Function} [predicate=_.identity] The function invoked per iteration. | ||
| 7102 |      * @returns {Array} Returns the slice of `array`. | ||
| 7103 | * @example | ||
| 7104 | * | ||
| 7105 | * var users = [ | ||
| 7106 |      *   { 'user': 'barney',  'active': true }, | ||
| 7107 |      *   { 'user': 'fred',    'active': false }, | ||
| 7108 |      *   { 'user': 'pebbles', 'active': false } | ||
| 7109 | * ]; | ||
| 7110 | * | ||
| 7111 |      * _.dropRightWhile(users, function(o) { return !o.active; }); | ||
| 7112 | * // => objects for ['barney'] | ||
| 7113 | * | ||
| 7114 | * // The `_.matches` iteratee shorthand. | ||
| 7115 |      * _.dropRightWhile(users, { 'user': 'pebbles', 'active': false }); | ||
| 7116 | * // => objects for ['barney', 'fred'] | ||
| 7117 | * | ||
| 7118 | * // The `_.matchesProperty` iteratee shorthand. | ||
| 7119 | * _.dropRightWhile(users, ['active', false]); | ||
| 7120 | * // => objects for ['barney'] | ||
| 7121 | * | ||
| 7122 | * // The `_.property` iteratee shorthand. | ||
| 7123 | * _.dropRightWhile(users, 'active'); | ||
| 7124 | * // => objects for ['barney', 'fred', 'pebbles'] | ||
| 7125 | */ | ||
| 7126 |     function dropRightWhile(array, predicate) { | ||
| 7127 | return (array && array.length) | ||
| 7128 | ? baseWhile(array, getIteratee(predicate, 3), true, true) | ||
| 7129 | : []; | ||
| 7130 | } | ||
| 7131 | |||
| 7132 | /** | ||
| 7133 | * Creates a slice of `array` excluding elements dropped from the beginning. | ||
| 7134 | * Elements are dropped until `predicate` returns falsey. The predicate is | ||
| 7135 | * invoked with three arguments: (value, index, array). | ||
| 7136 | * | ||
| 7137 | * @static | ||
| 7138 | * @memberOf _ | ||
| 7139 | * @since 3.0.0 | ||
| 7140 | * @category Array | ||
| 7141 |      * @param {Array} array The array to query. | ||
| 7142 |      * @param {Function} [predicate=_.identity] The function invoked per iteration. | ||
| 7143 |      * @returns {Array} Returns the slice of `array`. | ||
| 7144 | * @example | ||
| 7145 | * | ||
| 7146 | * var users = [ | ||
| 7147 |      *   { 'user': 'barney',  'active': false }, | ||
| 7148 |      *   { 'user': 'fred',    'active': false }, | ||
| 7149 |      *   { 'user': 'pebbles', 'active': true } | ||
| 7150 | * ]; | ||
| 7151 | * | ||
| 7152 |      * _.dropWhile(users, function(o) { return !o.active; }); | ||
| 7153 | * // => objects for ['pebbles'] | ||
| 7154 | * | ||
| 7155 | * // The `_.matches` iteratee shorthand. | ||
| 7156 |      * _.dropWhile(users, { 'user': 'barney', 'active': false }); | ||
| 7157 | * // => objects for ['fred', 'pebbles'] | ||
| 7158 | * | ||
| 7159 | * // The `_.matchesProperty` iteratee shorthand. | ||
| 7160 | * _.dropWhile(users, ['active', false]); | ||
| 7161 | * // => objects for ['pebbles'] | ||
| 7162 | * | ||
| 7163 | * // The `_.property` iteratee shorthand. | ||
| 7164 | * _.dropWhile(users, 'active'); | ||
| 7165 | * // => objects for ['barney', 'fred', 'pebbles'] | ||
| 7166 | */ | ||
| 7167 |     function dropWhile(array, predicate) { | ||
| 7168 | return (array && array.length) | ||
| 7169 | ? baseWhile(array, getIteratee(predicate, 3), true) | ||
| 7170 | : []; | ||
| 7171 | } | ||
| 7172 | |||
| 7173 | /** | ||
| 7174 | * Fills elements of `array` with `value` from `start` up to, but not | ||
| 7175 | * including, `end`. | ||
| 7176 | * | ||
| 7177 | * **Note:** This method mutates `array`. | ||
| 7178 | * | ||
| 7179 | * @static | ||
| 7180 | * @memberOf _ | ||
| 7181 | * @since 3.2.0 | ||
| 7182 | * @category Array | ||
| 7183 |      * @param {Array} array The array to fill. | ||
| 7184 |      * @param {*} value The value to fill `array` with. | ||
| 7185 |      * @param {number} [start=0] The start position. | ||
| 7186 |      * @param {number} [end=array.length] The end position. | ||
| 7187 |      * @returns {Array} Returns `array`. | ||
| 7188 | * @example | ||
| 7189 | * | ||
| 7190 | * var array = [1, 2, 3]; | ||
| 7191 | * | ||
| 7192 | * _.fill(array, 'a'); | ||
| 7193 | * console.log(array); | ||
| 7194 | * // => ['a', 'a', 'a'] | ||
| 7195 | * | ||
| 7196 | * _.fill(Array(3), 2); | ||
| 7197 | * // => [2, 2, 2] | ||
| 7198 | * | ||
| 7199 | * _.fill([4, 6, 8, 10], '*', 1, 3); | ||
| 7200 | * // => [4, '*', '*', 10] | ||
| 7201 | */ | ||
| 7202 |     function fill(array, value, start, end) { | ||
| 7203 | var length = array == null ? 0 : array.length; | ||
| 7204 |       if (!length) { | ||
| 7205 | return []; | ||
| 7206 | } | ||
| 7207 |       if (start && typeof start != 'number' && isIterateeCall(array, value, start)) { | ||
| 7208 | start = 0; | ||
| 7209 | end = length; | ||
| 7210 | } | ||
| 7211 | return baseFill(array, value, start, end); | ||
| 7212 | } | ||
| 7213 | |||
| 7214 | /** | ||
| 7215 | * This method is like `_.find` except that it returns the index of the first | ||
| 7216 | * element `predicate` returns truthy for instead of the element itself. | ||
| 7217 | * | ||
| 7218 | * @static | ||
| 7219 | * @memberOf _ | ||
| 7220 | * @since 1.1.0 | ||
| 7221 | * @category Array | ||
| 7222 |      * @param {Array} array The array to inspect. | ||
| 7223 |      * @param {Function} [predicate=_.identity] The function invoked per iteration. | ||
| 7224 |      * @param {number} [fromIndex=0] The index to search from. | ||
| 7225 |      * @returns {number} Returns the index of the found element, else `-1`. | ||
| 7226 | * @example | ||
| 7227 | * | ||
| 7228 | * var users = [ | ||
| 7229 |      *   { 'user': 'barney',  'active': false }, | ||
| 7230 |      *   { 'user': 'fred',    'active': false }, | ||
| 7231 |      *   { 'user': 'pebbles', 'active': true } | ||
| 7232 | * ]; | ||
| 7233 | * | ||
| 7234 |      * _.findIndex(users, function(o) { return o.user == 'barney'; }); | ||
| 7235 | * // => 0 | ||
| 7236 | * | ||
| 7237 | * // The `_.matches` iteratee shorthand. | ||
| 7238 |      * _.findIndex(users, { 'user': 'fred', 'active': false }); | ||
| 7239 | * // => 1 | ||
| 7240 | * | ||
| 7241 | * // The `_.matchesProperty` iteratee shorthand. | ||
| 7242 | * _.findIndex(users, ['active', false]); | ||
| 7243 | * // => 0 | ||
| 7244 | * | ||
| 7245 | * // The `_.property` iteratee shorthand. | ||
| 7246 | * _.findIndex(users, 'active'); | ||
| 7247 | * // => 2 | ||
| 7248 | */ | ||
| 7249 |     function findIndex(array, predicate, fromIndex) { | ||
| 7250 | var length = array == null ? 0 : array.length; | ||
| 7251 |       if (!length) { | ||
| 7252 | return -1; | ||
| 7253 | } | ||
| 7254 | var index = fromIndex == null ? 0 : toInteger(fromIndex); | ||
| 7255 |       if (index < 0) { | ||
| 7256 | index = nativeMax(length + index, 0); | ||
| 7257 | } | ||
| 7258 | return baseFindIndex(array, getIteratee(predicate, 3), index); | ||
| 7259 | } | ||
| 7260 | |||
| 7261 | /** | ||
| 7262 | * This method is like `_.findIndex` except that it iterates over elements | ||
| 7263 | * of `collection` from right to left. | ||
| 7264 | * | ||
| 7265 | * @static | ||
| 7266 | * @memberOf _ | ||
| 7267 | * @since 2.0.0 | ||
| 7268 | * @category Array | ||
| 7269 |      * @param {Array} array The array to inspect. | ||
| 7270 |      * @param {Function} [predicate=_.identity] The function invoked per iteration. | ||
| 7271 |      * @param {number} [fromIndex=array.length-1] The index to search from. | ||
| 7272 |      * @returns {number} Returns the index of the found element, else `-1`. | ||
| 7273 | * @example | ||
| 7274 | * | ||
| 7275 | * var users = [ | ||
| 7276 |      *   { 'user': 'barney',  'active': true }, | ||
| 7277 |      *   { 'user': 'fred',    'active': false }, | ||
| 7278 |      *   { 'user': 'pebbles', 'active': false } | ||
| 7279 | * ]; | ||
| 7280 | * | ||
| 7281 |      * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; }); | ||
| 7282 | * // => 2 | ||
| 7283 | * | ||
| 7284 | * // The `_.matches` iteratee shorthand. | ||
| 7285 |      * _.findLastIndex(users, { 'user': 'barney', 'active': true }); | ||
| 7286 | * // => 0 | ||
| 7287 | * | ||
| 7288 | * // The `_.matchesProperty` iteratee shorthand. | ||
| 7289 | * _.findLastIndex(users, ['active', false]); | ||
| 7290 | * // => 2 | ||
| 7291 | * | ||
| 7292 | * // The `_.property` iteratee shorthand. | ||
| 7293 | * _.findLastIndex(users, 'active'); | ||
| 7294 | * // => 0 | ||
| 7295 | */ | ||
| 7296 |     function findLastIndex(array, predicate, fromIndex) { | ||
| 7297 | var length = array == null ? 0 : array.length; | ||
| 7298 |       if (!length) { | ||
| 7299 | return -1; | ||
| 7300 | } | ||
| 7301 | var index = length - 1; | ||
| 7302 |       if (fromIndex !== undefined) { | ||
| 7303 | index = toInteger(fromIndex); | ||
| 7304 | index = fromIndex < 0 | ||
| 7305 | ? nativeMax(length + index, 0) | ||
| 7306 | : nativeMin(index, length - 1); | ||
| 7307 | } | ||
| 7308 | return baseFindIndex(array, getIteratee(predicate, 3), index, true); | ||
| 7309 | } | ||
| 7310 | |||
| 7311 | /** | ||
| 7312 | * Flattens `array` a single level deep. | ||
| 7313 | * | ||
| 7314 | * @static | ||
| 7315 | * @memberOf _ | ||
| 7316 | * @since 0.1.0 | ||
| 7317 | * @category Array | ||
| 7318 |      * @param {Array} array The array to flatten. | ||
| 7319 |      * @returns {Array} Returns the new flattened array. | ||
| 7320 | * @example | ||
| 7321 | * | ||
| 7322 | * _.flatten([1, [2, [3, [4]], 5]]); | ||
| 7323 | * // => [1, 2, [3, [4]], 5] | ||
| 7324 | */ | ||
| 7325 |     function flatten(array) { | ||
| 7326 | var length = array == null ? 0 : array.length; | ||
| 7327 | return length ? baseFlatten(array, 1) : []; | ||
| 7328 | } | ||
| 7329 | |||
| 7330 | /** | ||
| 7331 | * Recursively flattens `array`. | ||
| 7332 | * | ||
| 7333 | * @static | ||
| 7334 | * @memberOf _ | ||
| 7335 | * @since 3.0.0 | ||
| 7336 | * @category Array | ||
| 7337 |      * @param {Array} array The array to flatten. | ||
| 7338 |      * @returns {Array} Returns the new flattened array. | ||
| 7339 | * @example | ||
| 7340 | * | ||
| 7341 | * _.flattenDeep([1, [2, [3, [4]], 5]]); | ||
| 7342 | * // => [1, 2, 3, 4, 5] | ||
| 7343 | */ | ||
| 7344 |     function flattenDeep(array) { | ||
| 7345 | var length = array == null ? 0 : array.length; | ||
| 7346 | return length ? baseFlatten(array, INFINITY) : []; | ||
| 7347 | } | ||
| 7348 | |||
| 7349 | /** | ||
| 7350 | * Recursively flatten `array` up to `depth` times. | ||
| 7351 | * | ||
| 7352 | * @static | ||
| 7353 | * @memberOf _ | ||
| 7354 | * @since 4.4.0 | ||
| 7355 | * @category Array | ||
| 7356 |      * @param {Array} array The array to flatten. | ||
| 7357 |      * @param {number} [depth=1] The maximum recursion depth. | ||
| 7358 |      * @returns {Array} Returns the new flattened array. | ||
| 7359 | * @example | ||
| 7360 | * | ||
| 7361 | * var array = [1, [2, [3, [4]], 5]]; | ||
| 7362 | * | ||
| 7363 | * _.flattenDepth(array, 1); | ||
| 7364 | * // => [1, 2, [3, [4]], 5] | ||
| 7365 | * | ||
| 7366 | * _.flattenDepth(array, 2); | ||
| 7367 | * // => [1, 2, 3, [4], 5] | ||
| 7368 | */ | ||
| 7369 |     function flattenDepth(array, depth) { | ||
| 7370 | var length = array == null ? 0 : array.length; | ||
| 7371 |       if (!length) { | ||
| 7372 | return []; | ||
| 7373 | } | ||
| 7374 | depth = depth === undefined ? 1 : toInteger(depth); | ||
| 7375 | return baseFlatten(array, depth); | ||
| 7376 | } | ||
| 7377 | |||
| 7378 | /** | ||
| 7379 | * The inverse of `_.toPairs`; this method returns an object composed | ||
| 7380 | * from key-value `pairs`. | ||
| 7381 | * | ||
| 7382 | * @static | ||
| 7383 | * @memberOf _ | ||
| 7384 | * @since 4.0.0 | ||
| 7385 | * @category Array | ||
| 7386 |      * @param {Array} pairs The key-value pairs. | ||
| 7387 |      * @returns {Object} Returns the new object. | ||
| 7388 | * @example | ||
| 7389 | * | ||
| 7390 | * _.fromPairs([['a', 1], ['b', 2]]); | ||
| 7391 |      * // => { 'a': 1, 'b': 2 } | ||
| 7392 | */ | ||
| 7393 |     function fromPairs(pairs) { | ||
| 7394 | var index = -1, | ||
| 7395 | length = pairs == null ? 0 : pairs.length, | ||
| 7396 |           result = {}; | ||
| 7397 | |||
| 7398 |       while (++index < length) { | ||
| 7399 | var pair = pairs[index]; | ||
| 7400 | result[pair[0]] = pair[1]; | ||
| 7401 | } | ||
| 7402 | return result; | ||
| 7403 | } | ||
| 7404 | |||
| 7405 | /** | ||
| 7406 | * Gets the first element of `array`. | ||
| 7407 | * | ||
| 7408 | * @static | ||
| 7409 | * @memberOf _ | ||
| 7410 | * @since 0.1.0 | ||
| 7411 | * @alias first | ||
| 7412 | * @category Array | ||
| 7413 |      * @param {Array} array The array to query. | ||
| 7414 |      * @returns {*} Returns the first element of `array`. | ||
| 7415 | * @example | ||
| 7416 | * | ||
| 7417 | * _.head([1, 2, 3]); | ||
| 7418 | * // => 1 | ||
| 7419 | * | ||
| 7420 | * _.head([]); | ||
| 7421 | * // => undefined | ||
| 7422 | */ | ||
| 7423 |     function head(array) { | ||
| 7424 | return (array && array.length) ? array[0] : undefined; | ||
| 7425 | } | ||
| 7426 | |||
| 7427 | /** | ||
| 7428 | * Gets the index at which the first occurrence of `value` is found in `array` | ||
| 7429 | * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) | ||
| 7430 | * for equality comparisons. If `fromIndex` is negative, it's used as the | ||
| 7431 | * offset from the end of `array`. | ||
| 7432 | * | ||
| 7433 | * @static | ||
| 7434 | * @memberOf _ | ||
| 7435 | * @since 0.1.0 | ||
| 7436 | * @category Array | ||
| 7437 |      * @param {Array} array The array to inspect. | ||
| 7438 |      * @param {*} value The value to search for. | ||
| 7439 |      * @param {number} [fromIndex=0] The index to search from. | ||
| 7440 |      * @returns {number} Returns the index of the matched value, else `-1`. | ||
| 7441 | * @example | ||
| 7442 | * | ||
| 7443 | * _.indexOf([1, 2, 1, 2], 2); | ||
| 7444 | * // => 1 | ||
| 7445 | * | ||
| 7446 | * // Search from the `fromIndex`. | ||
| 7447 | * _.indexOf([1, 2, 1, 2], 2, 2); | ||
| 7448 | * // => 3 | ||
| 7449 | */ | ||
| 7450 |     function indexOf(array, value, fromIndex) { | ||
| 7451 | var length = array == null ? 0 : array.length; | ||
| 7452 |       if (!length) { | ||
| 7453 | return -1; | ||
| 7454 | } | ||
| 7455 | var index = fromIndex == null ? 0 : toInteger(fromIndex); | ||
| 7456 |       if (index < 0) { | ||
| 7457 | index = nativeMax(length + index, 0); | ||
| 7458 | } | ||
| 7459 | return baseIndexOf(array, value, index); | ||
| 7460 | } | ||
| 7461 | |||
| 7462 | /** | ||
| 7463 | * Gets all but the last element of `array`. | ||
| 7464 | * | ||
| 7465 | * @static | ||
| 7466 | * @memberOf _ | ||
| 7467 | * @since 0.1.0 | ||
| 7468 | * @category Array | ||
| 7469 |      * @param {Array} array The array to query. | ||
| 7470 |      * @returns {Array} Returns the slice of `array`. | ||
| 7471 | * @example | ||
| 7472 | * | ||
| 7473 | * _.initial([1, 2, 3]); | ||
| 7474 | * // => [1, 2] | ||
| 7475 | */ | ||
| 7476 |     function initial(array) { | ||
| 7477 | var length = array == null ? 0 : array.length; | ||
| 7478 | return length ? baseSlice(array, 0, -1) : []; | ||
| 7479 | } | ||
| 7480 | |||
| 7481 | /** | ||
| 7482 | * Creates an array of unique values that are included in all given arrays | ||
| 7483 | * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) | ||
| 7484 | * for equality comparisons. The order and references of result values are | ||
| 7485 | * determined by the first array. | ||
| 7486 | * | ||
| 7487 | * @static | ||
| 7488 | * @memberOf _ | ||
| 7489 | * @since 0.1.0 | ||
| 7490 | * @category Array | ||
| 7491 |      * @param {...Array} [arrays] The arrays to inspect. | ||
| 7492 |      * @returns {Array} Returns the new array of intersecting values. | ||
| 7493 | * @example | ||
| 7494 | * | ||
| 7495 | * _.intersection([2, 1], [2, 3]); | ||
| 7496 | * // => [2] | ||
| 7497 | */ | ||
| 7498 |     var intersection = baseRest(function(arrays) { | ||
| 7499 | var mapped = arrayMap(arrays, castArrayLikeObject); | ||
| 7500 | return (mapped.length && mapped[0] === arrays[0]) | ||
| 7501 | ? baseIntersection(mapped) | ||
| 7502 | : []; | ||
| 7503 | }); | ||
| 7504 | |||
| 7505 | /** | ||
| 7506 | * This method is like `_.intersection` except that it accepts `iteratee` | ||
| 7507 | * which is invoked for each element of each `arrays` to generate the criterion | ||
| 7508 | * by which they're compared. The order and references of result values are | ||
| 7509 | * determined by the first array. The iteratee is invoked with one argument: | ||
| 7510 | * (value). | ||
| 7511 | * | ||
| 7512 | * @static | ||
| 7513 | * @memberOf _ | ||
| 7514 | * @since 4.0.0 | ||
| 7515 | * @category Array | ||
| 7516 |      * @param {...Array} [arrays] The arrays to inspect. | ||
| 7517 |      * @param {Function} [iteratee=_.identity] The iteratee invoked per element. | ||
| 7518 |      * @returns {Array} Returns the new array of intersecting values. | ||
| 7519 | * @example | ||
| 7520 | * | ||
| 7521 | * _.intersectionBy([2.1, 1.2], [2.3, 3.4], Math.floor); | ||
| 7522 | * // => [2.1] | ||
| 7523 | * | ||
| 7524 | * // The `_.property` iteratee shorthand. | ||
| 7525 |      * _.intersectionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x'); | ||
| 7526 |      * // => [{ 'x': 1 }] | ||
| 7527 | */ | ||
| 7528 |     var intersectionBy = baseRest(function(arrays) { | ||
| 7529 | var iteratee = last(arrays), | ||
| 7530 | mapped = arrayMap(arrays, castArrayLikeObject); | ||
| 7531 | |||
| 7532 |       if (iteratee === last(mapped)) { | ||
| 7533 | iteratee = undefined; | ||
| 7534 |       } else { | ||
| 7535 | mapped.pop(); | ||
| 7536 | } | ||
| 7537 | return (mapped.length && mapped[0] === arrays[0]) | ||
| 7538 | ? baseIntersection(mapped, getIteratee(iteratee, 2)) | ||
| 7539 | : []; | ||
| 7540 | }); | ||
| 7541 | |||
| 7542 | /** | ||
| 7543 | * This method is like `_.intersection` except that it accepts `comparator` | ||
| 7544 | * which is invoked to compare elements of `arrays`. The order and references | ||
| 7545 | * of result values are determined by the first array. The comparator is | ||
| 7546 | * invoked with two arguments: (arrVal, othVal). | ||
| 7547 | * | ||
| 7548 | * @static | ||
| 7549 | * @memberOf _ | ||
| 7550 | * @since 4.0.0 | ||
| 7551 | * @category Array | ||
| 7552 |      * @param {...Array} [arrays] The arrays to inspect. | ||
| 7553 |      * @param {Function} [comparator] The comparator invoked per element. | ||
| 7554 |      * @returns {Array} Returns the new array of intersecting values. | ||
| 7555 | * @example | ||
| 7556 | * | ||
| 7557 |      * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]; | ||
| 7558 |      * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }]; | ||
| 7559 | * | ||
| 7560 | * _.intersectionWith(objects, others, _.isEqual); | ||
| 7561 |      * // => [{ 'x': 1, 'y': 2 }] | ||
| 7562 | */ | ||
| 7563 |     var intersectionWith = baseRest(function(arrays) { | ||
| 7564 | var comparator = last(arrays), | ||
| 7565 | mapped = arrayMap(arrays, castArrayLikeObject); | ||
| 7566 | |||
| 7567 | comparator = typeof comparator == 'function' ? comparator : undefined; | ||
| 7568 |       if (comparator) { | ||
| 7569 | mapped.pop(); | ||
| 7570 | } | ||
| 7571 | return (mapped.length && mapped[0] === arrays[0]) | ||
| 7572 | ? baseIntersection(mapped, undefined, comparator) | ||
| 7573 | : []; | ||
| 7574 | }); | ||
| 7575 | |||
| 7576 | /** | ||
| 7577 | * Converts all elements in `array` into a string separated by `separator`. | ||
| 7578 | * | ||
| 7579 | * @static | ||
| 7580 | * @memberOf _ | ||
| 7581 | * @since 4.0.0 | ||
| 7582 | * @category Array | ||
| 7583 |      * @param {Array} array The array to convert. | ||
| 7584 |      * @param {string} [separator=','] The element separator. | ||
| 7585 |      * @returns {string} Returns the joined string. | ||
| 7586 | * @example | ||
| 7587 | * | ||
| 7588 | * _.join(['a', 'b', 'c'], '~'); | ||
| 7589 | * // => 'a~b~c' | ||
| 7590 | */ | ||
| 7591 |     function join(array, separator) { | ||
| 7592 | return array == null ? '' : nativeJoin.call(array, separator); | ||
| 7593 | } | ||
| 7594 | |||
| 7595 | /** | ||
| 7596 | * Gets the last element of `array`. | ||
| 7597 | * | ||
| 7598 | * @static | ||
| 7599 | * @memberOf _ | ||
| 7600 | * @since 0.1.0 | ||
| 7601 | * @category Array | ||
| 7602 |      * @param {Array} array The array to query. | ||
| 7603 |      * @returns {*} Returns the last element of `array`. | ||
| 7604 | * @example | ||
| 7605 | * | ||
| 7606 | * _.last([1, 2, 3]); | ||
| 7607 | * // => 3 | ||
| 7608 | */ | ||
| 7609 |     function last(array) { | ||
| 7610 | var length = array == null ? 0 : array.length; | ||
| 7611 | return length ? array[length - 1] : undefined; | ||
| 7612 | } | ||
| 7613 | |||
| 7614 | /** | ||
| 7615 | * This method is like `_.indexOf` except that it iterates over elements of | ||
| 7616 | * `array` from right to left. | ||
| 7617 | * | ||
| 7618 | * @static | ||
| 7619 | * @memberOf _ | ||
| 7620 | * @since 0.1.0 | ||
| 7621 | * @category Array | ||
| 7622 |      * @param {Array} array The array to inspect. | ||
| 7623 |      * @param {*} value The value to search for. | ||
| 7624 |      * @param {number} [fromIndex=array.length-1] The index to search from. | ||
| 7625 |      * @returns {number} Returns the index of the matched value, else `-1`. | ||
| 7626 | * @example | ||
| 7627 | * | ||
| 7628 | * _.lastIndexOf([1, 2, 1, 2], 2); | ||
| 7629 | * // => 3 | ||
| 7630 | * | ||
| 7631 | * // Search from the `fromIndex`. | ||
| 7632 | * _.lastIndexOf([1, 2, 1, 2], 2, 2); | ||
| 7633 | * // => 1 | ||
| 7634 | */ | ||
| 7635 |     function lastIndexOf(array, value, fromIndex) { | ||
| 7636 | var length = array == null ? 0 : array.length; | ||
| 7637 |       if (!length) { | ||
| 7638 | return -1; | ||
| 7639 | } | ||
| 7640 | var index = length; | ||
| 7641 |       if (fromIndex !== undefined) { | ||
| 7642 | index = toInteger(fromIndex); | ||
| 7643 | index = index < 0 ? nativeMax(length + index, 0) : nativeMin(index, length - 1); | ||
| 7644 | } | ||
| 7645 | return value === value | ||
| 7646 | ? strictLastIndexOf(array, value, index) | ||
| 7647 | : baseFindIndex(array, baseIsNaN, index, true); | ||
| 7648 | } | ||
| 7649 | |||
| 7650 | /** | ||
| 7651 | * Gets the element at index `n` of `array`. If `n` is negative, the nth | ||
| 7652 | * element from the end is returned. | ||
| 7653 | * | ||
| 7654 | * @static | ||
| 7655 | * @memberOf _ | ||
| 7656 | * @since 4.11.0 | ||
| 7657 | * @category Array | ||
| 7658 |      * @param {Array} array The array to query. | ||
| 7659 |      * @param {number} [n=0] The index of the element to return. | ||
| 7660 |      * @returns {*} Returns the nth element of `array`. | ||
| 7661 | * @example | ||
| 7662 | * | ||
| 7663 | * var array = ['a', 'b', 'c', 'd']; | ||
| 7664 | * | ||
| 7665 | * _.nth(array, 1); | ||
| 7666 | * // => 'b' | ||
| 7667 | * | ||
| 7668 | * _.nth(array, -2); | ||
| 7669 | * // => 'c'; | ||
| 7670 | */ | ||
| 7671 |     function nth(array, n) { | ||
| 7672 | return (array && array.length) ? baseNth(array, toInteger(n)) : undefined; | ||
| 7673 | } | ||
| 7674 | |||
| 7675 | /** | ||
| 7676 | * Removes all given values from `array` using | ||
| 7677 | * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) | ||
| 7678 | * for equality comparisons. | ||
| 7679 | * | ||
| 7680 | * **Note:** Unlike `_.without`, this method mutates `array`. Use `_.remove` | ||
| 7681 | * to remove elements from an array by predicate. | ||
| 7682 | * | ||
| 7683 | * @static | ||
| 7684 | * @memberOf _ | ||
| 7685 | * @since 2.0.0 | ||
| 7686 | * @category Array | ||
| 7687 |      * @param {Array} array The array to modify. | ||
| 7688 |      * @param {...*} [values] The values to remove. | ||
| 7689 |      * @returns {Array} Returns `array`. | ||
| 7690 | * @example | ||
| 7691 | * | ||
| 7692 | * var array = ['a', 'b', 'c', 'a', 'b', 'c']; | ||
| 7693 | * | ||
| 7694 | * _.pull(array, 'a', 'c'); | ||
| 7695 | * console.log(array); | ||
| 7696 | * // => ['b', 'b'] | ||
| 7697 | */ | ||
| 7698 | var pull = baseRest(pullAll); | ||
| 7699 | |||
| 7700 | /** | ||
| 7701 | * This method is like `_.pull` except that it accepts an array of values to remove. | ||
| 7702 | * | ||
| 7703 | * **Note:** Unlike `_.difference`, this method mutates `array`. | ||
| 7704 | * | ||
| 7705 | * @static | ||
| 7706 | * @memberOf _ | ||
| 7707 | * @since 4.0.0 | ||
| 7708 | * @category Array | ||
| 7709 |      * @param {Array} array The array to modify. | ||
| 7710 |      * @param {Array} values The values to remove. | ||
| 7711 |      * @returns {Array} Returns `array`. | ||
| 7712 | * @example | ||
| 7713 | * | ||
| 7714 | * var array = ['a', 'b', 'c', 'a', 'b', 'c']; | ||
| 7715 | * | ||
| 7716 | * _.pullAll(array, ['a', 'c']); | ||
| 7717 | * console.log(array); | ||
| 7718 | * // => ['b', 'b'] | ||
| 7719 | */ | ||
| 7720 |     function pullAll(array, values) { | ||
| 7721 | return (array && array.length && values && values.length) | ||
| 7722 | ? basePullAll(array, values) | ||
| 7723 | : array; | ||
| 7724 | } | ||
| 7725 | |||
| 7726 | /** | ||
| 7727 | * This method is like `_.pullAll` except that it accepts `iteratee` which is | ||
| 7728 | * invoked for each element of `array` and `values` to generate the criterion | ||
| 7729 | * by which they're compared. The iteratee is invoked with one argument: (value). | ||
| 7730 | * | ||
| 7731 | * **Note:** Unlike `_.differenceBy`, this method mutates `array`. | ||
| 7732 | * | ||
| 7733 | * @static | ||
| 7734 | * @memberOf _ | ||
| 7735 | * @since 4.0.0 | ||
| 7736 | * @category Array | ||
| 7737 |      * @param {Array} array The array to modify. | ||
| 7738 |      * @param {Array} values The values to remove. | ||
| 7739 |      * @param {Function} [iteratee=_.identity] The iteratee invoked per element. | ||
| 7740 |      * @returns {Array} Returns `array`. | ||
| 7741 | * @example | ||
| 7742 | * | ||
| 7743 |      * var array = [{ 'x': 1 }, { 'x': 2 }, { 'x': 3 }, { 'x': 1 }]; | ||
| 7744 | * | ||
| 7745 |      * _.pullAllBy(array, [{ 'x': 1 }, { 'x': 3 }], 'x'); | ||
| 7746 | * console.log(array); | ||
| 7747 |      * // => [{ 'x': 2 }] | ||
| 7748 | */ | ||
| 7749 |     function pullAllBy(array, values, iteratee) { | ||
| 7750 | return (array && array.length && values && values.length) | ||
| 7751 | ? basePullAll(array, values, getIteratee(iteratee, 2)) | ||
| 7752 | : array; | ||
| 7753 | } | ||
| 7754 | |||
| 7755 | /** | ||
| 7756 | * This method is like `_.pullAll` except that it accepts `comparator` which | ||
| 7757 | * is invoked to compare elements of `array` to `values`. The comparator is | ||
| 7758 | * invoked with two arguments: (arrVal, othVal). | ||
| 7759 | * | ||
| 7760 | * **Note:** Unlike `_.differenceWith`, this method mutates `array`. | ||
| 7761 | * | ||
| 7762 | * @static | ||
| 7763 | * @memberOf _ | ||
| 7764 | * @since 4.6.0 | ||
| 7765 | * @category Array | ||
| 7766 |      * @param {Array} array The array to modify. | ||
| 7767 |      * @param {Array} values The values to remove. | ||
| 7768 |      * @param {Function} [comparator] The comparator invoked per element. | ||
| 7769 |      * @returns {Array} Returns `array`. | ||
| 7770 | * @example | ||
| 7771 | * | ||
| 7772 |      * var array = [{ 'x': 1, 'y': 2 }, { 'x': 3, 'y': 4 }, { 'x': 5, 'y': 6 }]; | ||
| 7773 | * | ||
| 7774 |      * _.pullAllWith(array, [{ 'x': 3, 'y': 4 }], _.isEqual); | ||
| 7775 | * console.log(array); | ||
| 7776 |      * // => [{ 'x': 1, 'y': 2 }, { 'x': 5, 'y': 6 }] | ||
| 7777 | */ | ||
| 7778 |     function pullAllWith(array, values, comparator) { | ||
| 7779 | return (array && array.length && values && values.length) | ||
| 7780 | ? basePullAll(array, values, undefined, comparator) | ||
| 7781 | : array; | ||
| 7782 | } | ||
| 7783 | |||
| 7784 | /** | ||
| 7785 | * Removes elements from `array` corresponding to `indexes` and returns an | ||
| 7786 | * array of removed elements. | ||
| 7787 | * | ||
| 7788 | * **Note:** Unlike `_.at`, this method mutates `array`. | ||
| 7789 | * | ||
| 7790 | * @static | ||
| 7791 | * @memberOf _ | ||
| 7792 | * @since 3.0.0 | ||
| 7793 | * @category Array | ||
| 7794 |      * @param {Array} array The array to modify. | ||
| 7795 |      * @param {...(number|number[])} [indexes] The indexes of elements to remove. | ||
| 7796 |      * @returns {Array} Returns the new array of removed elements. | ||
| 7797 | * @example | ||
| 7798 | * | ||
| 7799 | * var array = ['a', 'b', 'c', 'd']; | ||
| 7800 | * var pulled = _.pullAt(array, [1, 3]); | ||
| 7801 | * | ||
| 7802 | * console.log(array); | ||
| 7803 | * // => ['a', 'c'] | ||
| 7804 | * | ||
| 7805 | * console.log(pulled); | ||
| 7806 | * // => ['b', 'd'] | ||
| 7807 | */ | ||
| 7808 |     var pullAt = flatRest(function(array, indexes) { | ||
| 7809 | var length = array == null ? 0 : array.length, | ||
| 7810 | result = baseAt(array, indexes); | ||
| 7811 | |||
| 7812 |       basePullAt(array, arrayMap(indexes, function(index) { | ||
| 7813 | return isIndex(index, length) ? +index : index; | ||
| 7814 | }).sort(compareAscending)); | ||
| 7815 | |||
| 7816 | return result; | ||
| 7817 | }); | ||
| 7818 | |||
| 7819 | /** | ||
| 7820 | * Removes all elements from `array` that `predicate` returns truthy for | ||
| 7821 | * and returns an array of the removed elements. The predicate is invoked | ||
| 7822 | * with three arguments: (value, index, array). | ||
| 7823 | * | ||
| 7824 | * **Note:** Unlike `_.filter`, this method mutates `array`. Use `_.pull` | ||
| 7825 | * to pull elements from an array by value. | ||
| 7826 | * | ||
| 7827 | * @static | ||
| 7828 | * @memberOf _ | ||
| 7829 | * @since 2.0.0 | ||
| 7830 | * @category Array | ||
| 7831 |      * @param {Array} array The array to modify. | ||
| 7832 |      * @param {Function} [predicate=_.identity] The function invoked per iteration. | ||
| 7833 |      * @returns {Array} Returns the new array of removed elements. | ||
| 7834 | * @example | ||
| 7835 | * | ||
| 7836 | * var array = [1, 2, 3, 4]; | ||
| 7837 |      * var evens = _.remove(array, function(n) { | ||
| 7838 | * return n % 2 == 0; | ||
| 7839 | * }); | ||
| 7840 | * | ||
| 7841 | * console.log(array); | ||
| 7842 | * // => [1, 3] | ||
| 7843 | * | ||
| 7844 | * console.log(evens); | ||
| 7845 | * // => [2, 4] | ||
| 7846 | */ | ||
| 7847 |     function remove(array, predicate) { | ||
| 7848 | var result = []; | ||
| 7849 |       if (!(array && array.length)) { | ||
| 7850 | return result; | ||
| 7851 | } | ||
| 7852 | var index = -1, | ||
| 7853 | indexes = [], | ||
| 7854 | length = array.length; | ||
| 7855 | |||
| 7856 | predicate = getIteratee(predicate, 3); | ||
| 7857 |       while (++index < length) { | ||
| 7858 | var value = array[index]; | ||
| 7859 |         if (predicate(value, index, array)) { | ||
| 7860 | result.push(value); | ||
| 7861 | indexes.push(index); | ||
| 7862 | } | ||
| 7863 | } | ||
| 7864 | basePullAt(array, indexes); | ||
| 7865 | return result; | ||
| 7866 | } | ||
| 7867 | |||
| 7868 | /** | ||
| 7869 | * Reverses `array` so that the first element becomes the last, the second | ||
| 7870 | * element becomes the second to last, and so on. | ||
| 7871 | * | ||
| 7872 | * **Note:** This method mutates `array` and is based on | ||
| 7873 | * [`Array#reverse`](https://mdn.io/Array/reverse). | ||
| 7874 | * | ||
| 7875 | * @static | ||
| 7876 | * @memberOf _ | ||
| 7877 | * @since 4.0.0 | ||
| 7878 | * @category Array | ||
| 7879 |      * @param {Array} array The array to modify. | ||
| 7880 |      * @returns {Array} Returns `array`. | ||
| 7881 | * @example | ||
| 7882 | * | ||
| 7883 | * var array = [1, 2, 3]; | ||
| 7884 | * | ||
| 7885 | * _.reverse(array); | ||
| 7886 | * // => [3, 2, 1] | ||
| 7887 | * | ||
| 7888 | * console.log(array); | ||
| 7889 | * // => [3, 2, 1] | ||
| 7890 | */ | ||
| 7891 |     function reverse(array) { | ||
| 7892 | return array == null ? array : nativeReverse.call(array); | ||
| 7893 | } | ||
| 7894 | |||
| 7895 | /** | ||
| 7896 | * Creates a slice of `array` from `start` up to, but not including, `end`. | ||
| 7897 | * | ||
| 7898 | * **Note:** This method is used instead of | ||
| 7899 | * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are | ||
| 7900 | * returned. | ||
| 7901 | * | ||
| 7902 | * @static | ||
| 7903 | * @memberOf _ | ||
| 7904 | * @since 3.0.0 | ||
| 7905 | * @category Array | ||
| 7906 |      * @param {Array} array The array to slice. | ||
| 7907 |      * @param {number} [start=0] The start position. | ||
| 7908 |      * @param {number} [end=array.length] The end position. | ||
| 7909 |      * @returns {Array} Returns the slice of `array`. | ||
| 7910 | */ | ||
| 7911 |     function slice(array, start, end) { | ||
| 7912 | var length = array == null ? 0 : array.length; | ||
| 7913 |       if (!length) { | ||
| 7914 | return []; | ||
| 7915 | } | ||
| 7916 |       if (end && typeof end != 'number' && isIterateeCall(array, start, end)) { | ||
| 7917 | start = 0; | ||
| 7918 | end = length; | ||
| 7919 | } | ||
| 7920 |       else { | ||
| 7921 | start = start == null ? 0 : toInteger(start); | ||
| 7922 | end = end === undefined ? length : toInteger(end); | ||
| 7923 | } | ||
| 7924 | return baseSlice(array, start, end); | ||
| 7925 | } | ||
| 7926 | |||
| 7927 | /** | ||
| 7928 | * Uses a binary search to determine the lowest index at which `value` | ||
| 7929 | * should be inserted into `array` in order to maintain its sort order. | ||
| 7930 | * | ||
| 7931 | * @static | ||
| 7932 | * @memberOf _ | ||
| 7933 | * @since 0.1.0 | ||
| 7934 | * @category Array | ||
| 7935 |      * @param {Array} array The sorted array to inspect. | ||
| 7936 |      * @param {*} value The value to evaluate. | ||
| 7937 |      * @returns {number} Returns the index at which `value` should be inserted | ||
| 7938 | * into `array`. | ||
| 7939 | * @example | ||
| 7940 | * | ||
| 7941 | * _.sortedIndex([30, 50], 40); | ||
| 7942 | * // => 1 | ||
| 7943 | */ | ||
| 7944 |     function sortedIndex(array, value) { | ||
| 7945 | return baseSortedIndex(array, value); | ||
| 7946 | } | ||
| 7947 | |||
| 7948 | /** | ||
| 7949 | * This method is like `_.sortedIndex` except that it accepts `iteratee` | ||
| 7950 | * which is invoked for `value` and each element of `array` to compute their | ||
| 7951 | * sort ranking. The iteratee is invoked with one argument: (value). | ||
| 7952 | * | ||
| 7953 | * @static | ||
| 7954 | * @memberOf _ | ||
| 7955 | * @since 4.0.0 | ||
| 7956 | * @category Array | ||
| 7957 |      * @param {Array} array The sorted array to inspect. | ||
| 7958 |      * @param {*} value The value to evaluate. | ||
| 7959 |      * @param {Function} [iteratee=_.identity] The iteratee invoked per element. | ||
| 7960 |      * @returns {number} Returns the index at which `value` should be inserted | ||
| 7961 | * into `array`. | ||
| 7962 | * @example | ||
| 7963 | * | ||
| 7964 |      * var objects = [{ 'x': 4 }, { 'x': 5 }]; | ||
| 7965 | * | ||
| 7966 |      * _.sortedIndexBy(objects, { 'x': 4 }, function(o) { return o.x; }); | ||
| 7967 | * // => 0 | ||
| 7968 | * | ||
| 7969 | * // The `_.property` iteratee shorthand. | ||
| 7970 |      * _.sortedIndexBy(objects, { 'x': 4 }, 'x'); | ||
| 7971 | * // => 0 | ||
| 7972 | */ | ||
| 7973 |     function sortedIndexBy(array, value, iteratee) { | ||
| 7974 | return baseSortedIndexBy(array, value, getIteratee(iteratee, 2)); | ||
| 7975 | } | ||
| 7976 | |||
| 7977 | /** | ||
| 7978 | * This method is like `_.indexOf` except that it performs a binary | ||
| 7979 | * search on a sorted `array`. | ||
| 7980 | * | ||
| 7981 | * @static | ||
| 7982 | * @memberOf _ | ||
| 7983 | * @since 4.0.0 | ||
| 7984 | * @category Array | ||
| 7985 |      * @param {Array} array The array to inspect. | ||
| 7986 |      * @param {*} value The value to search for. | ||
| 7987 |      * @returns {number} Returns the index of the matched value, else `-1`. | ||
| 7988 | * @example | ||
| 7989 | * | ||
| 7990 | * _.sortedIndexOf([4, 5, 5, 5, 6], 5); | ||
| 7991 | * // => 1 | ||
| 7992 | */ | ||
| 7993 |     function sortedIndexOf(array, value) { | ||
| 7994 | var length = array == null ? 0 : array.length; | ||
| 7995 |       if (length) { | ||
| 7996 | var index = baseSortedIndex(array, value); | ||
| 7997 |         if (index < length && eq(array[index], value)) { | ||
| 7998 | return index; | ||
| 7999 | } | ||
| 8000 | } | ||
| 8001 | return -1; | ||
| 8002 | } | ||
| 8003 | |||
| 8004 | /** | ||
| 8005 | * This method is like `_.sortedIndex` except that it returns the highest | ||
| 8006 | * index at which `value` should be inserted into `array` in order to | ||
| 8007 | * maintain its sort order. | ||
| 8008 | * | ||
| 8009 | * @static | ||
| 8010 | * @memberOf _ | ||
| 8011 | * @since 3.0.0 | ||
| 8012 | * @category Array | ||
| 8013 |      * @param {Array} array The sorted array to inspect. | ||
| 8014 |      * @param {*} value The value to evaluate. | ||
| 8015 |      * @returns {number} Returns the index at which `value` should be inserted | ||
| 8016 | * into `array`. | ||
| 8017 | * @example | ||
| 8018 | * | ||
| 8019 | * _.sortedLastIndex([4, 5, 5, 5, 6], 5); | ||
| 8020 | * // => 4 | ||
| 8021 | */ | ||
| 8022 |     function sortedLastIndex(array, value) { | ||
| 8023 | return baseSortedIndex(array, value, true); | ||
| 8024 | } | ||
| 8025 | |||
| 8026 | /** | ||
| 8027 | * This method is like `_.sortedLastIndex` except that it accepts `iteratee` | ||
| 8028 | * which is invoked for `value` and each element of `array` to compute their | ||
| 8029 | * sort ranking. The iteratee is invoked with one argument: (value). | ||
| 8030 | * | ||
| 8031 | * @static | ||
| 8032 | * @memberOf _ | ||
| 8033 | * @since 4.0.0 | ||
| 8034 | * @category Array | ||
| 8035 |      * @param {Array} array The sorted array to inspect. | ||
| 8036 |      * @param {*} value The value to evaluate. | ||
| 8037 |      * @param {Function} [iteratee=_.identity] The iteratee invoked per element. | ||
| 8038 |      * @returns {number} Returns the index at which `value` should be inserted | ||
| 8039 | * into `array`. | ||
| 8040 | * @example | ||
| 8041 | * | ||
| 8042 |      * var objects = [{ 'x': 4 }, { 'x': 5 }]; | ||
| 8043 | * | ||
| 8044 |      * _.sortedLastIndexBy(objects, { 'x': 4 }, function(o) { return o.x; }); | ||
| 8045 | * // => 1 | ||
| 8046 | * | ||
| 8047 | * // The `_.property` iteratee shorthand. | ||
| 8048 |      * _.sortedLastIndexBy(objects, { 'x': 4 }, 'x'); | ||
| 8049 | * // => 1 | ||
| 8050 | */ | ||
| 8051 |     function sortedLastIndexBy(array, value, iteratee) { | ||
| 8052 | return baseSortedIndexBy(array, value, getIteratee(iteratee, 2), true); | ||
| 8053 | } | ||
| 8054 | |||
| 8055 | /** | ||
| 8056 | * This method is like `_.lastIndexOf` except that it performs a binary | ||
| 8057 | * search on a sorted `array`. | ||
| 8058 | * | ||
| 8059 | * @static | ||
| 8060 | * @memberOf _ | ||
| 8061 | * @since 4.0.0 | ||
| 8062 | * @category Array | ||
| 8063 |      * @param {Array} array The array to inspect. | ||
| 8064 |      * @param {*} value The value to search for. | ||
| 8065 |      * @returns {number} Returns the index of the matched value, else `-1`. | ||
| 8066 | * @example | ||
| 8067 | * | ||
| 8068 | * _.sortedLastIndexOf([4, 5, 5, 5, 6], 5); | ||
| 8069 | * // => 3 | ||
| 8070 | */ | ||
| 8071 |     function sortedLastIndexOf(array, value) { | ||
| 8072 | var length = array == null ? 0 : array.length; | ||
| 8073 |       if (length) { | ||
| 8074 | var index = baseSortedIndex(array, value, true) - 1; | ||
| 8075 |         if (eq(array[index], value)) { | ||
| 8076 | return index; | ||
| 8077 | } | ||
| 8078 | } | ||
| 8079 | return -1; | ||
| 8080 | } | ||
| 8081 | |||
| 8082 | /** | ||
| 8083 | * This method is like `_.uniq` except that it's designed and optimized | ||
| 8084 | * for sorted arrays. | ||
| 8085 | * | ||
| 8086 | * @static | ||
| 8087 | * @memberOf _ | ||
| 8088 | * @since 4.0.0 | ||
| 8089 | * @category Array | ||
| 8090 |      * @param {Array} array The array to inspect. | ||
| 8091 |      * @returns {Array} Returns the new duplicate free array. | ||
| 8092 | * @example | ||
| 8093 | * | ||
| 8094 | * _.sortedUniq([1, 1, 2]); | ||
| 8095 | * // => [1, 2] | ||
| 8096 | */ | ||
| 8097 |     function sortedUniq(array) { | ||
| 8098 | return (array && array.length) | ||
| 8099 | ? baseSortedUniq(array) | ||
| 8100 | : []; | ||
| 8101 | } | ||
| 8102 | |||
| 8103 | /** | ||
| 8104 | * This method is like `_.uniqBy` except that it's designed and optimized | ||
| 8105 | * for sorted arrays. | ||
| 8106 | * | ||
| 8107 | * @static | ||
| 8108 | * @memberOf _ | ||
| 8109 | * @since 4.0.0 | ||
| 8110 | * @category Array | ||
| 8111 |      * @param {Array} array The array to inspect. | ||
| 8112 |      * @param {Function} [iteratee] The iteratee invoked per element. | ||
| 8113 |      * @returns {Array} Returns the new duplicate free array. | ||
| 8114 | * @example | ||
| 8115 | * | ||
| 8116 | * _.sortedUniqBy([1.1, 1.2, 2.3, 2.4], Math.floor); | ||
| 8117 | * // => [1.1, 2.3] | ||
| 8118 | */ | ||
| 8119 |     function sortedUniqBy(array, iteratee) { | ||
| 8120 | return (array && array.length) | ||
| 8121 | ? baseSortedUniq(array, getIteratee(iteratee, 2)) | ||
| 8122 | : []; | ||
| 8123 | } | ||
| 8124 | |||
| 8125 | /** | ||
| 8126 | * Gets all but the first element of `array`. | ||
| 8127 | * | ||
| 8128 | * @static | ||
| 8129 | * @memberOf _ | ||
| 8130 | * @since 4.0.0 | ||
| 8131 | * @category Array | ||
| 8132 |      * @param {Array} array The array to query. | ||
| 8133 |      * @returns {Array} Returns the slice of `array`. | ||
| 8134 | * @example | ||
| 8135 | * | ||
| 8136 | * _.tail([1, 2, 3]); | ||
| 8137 | * // => [2, 3] | ||
| 8138 | */ | ||
| 8139 |     function tail(array) { | ||
| 8140 | var length = array == null ? 0 : array.length; | ||
| 8141 | return length ? baseSlice(array, 1, length) : []; | ||
| 8142 | } | ||
| 8143 | |||
| 8144 | /** | ||
| 8145 | * Creates a slice of `array` with `n` elements taken from the beginning. | ||
| 8146 | * | ||
| 8147 | * @static | ||
| 8148 | * @memberOf _ | ||
| 8149 | * @since 0.1.0 | ||
| 8150 | * @category Array | ||
| 8151 |      * @param {Array} array The array to query. | ||
| 8152 |      * @param {number} [n=1] The number of elements to take. | ||
| 8153 |      * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. | ||
| 8154 |      * @returns {Array} Returns the slice of `array`. | ||
| 8155 | * @example | ||
| 8156 | * | ||
| 8157 | * _.take([1, 2, 3]); | ||
| 8158 | * // => [1] | ||
| 8159 | * | ||
| 8160 | * _.take([1, 2, 3], 2); | ||
| 8161 | * // => [1, 2] | ||
| 8162 | * | ||
| 8163 | * _.take([1, 2, 3], 5); | ||
| 8164 | * // => [1, 2, 3] | ||
| 8165 | * | ||
| 8166 | * _.take([1, 2, 3], 0); | ||
| 8167 | * // => [] | ||
| 8168 | */ | ||
| 8169 |     function take(array, n, guard) { | ||
| 8170 |       if (!(array && array.length)) { | ||
| 8171 | return []; | ||
| 8172 | } | ||
| 8173 | n = (guard || n === undefined) ? 1 : toInteger(n); | ||
| 8174 | return baseSlice(array, 0, n < 0 ? 0 : n); | ||
| 8175 | } | ||
| 8176 | |||
| 8177 | /** | ||
| 8178 | * Creates a slice of `array` with `n` elements taken from the end. | ||
| 8179 | * | ||
| 8180 | * @static | ||
| 8181 | * @memberOf _ | ||
| 8182 | * @since 3.0.0 | ||
| 8183 | * @category Array | ||
| 8184 |      * @param {Array} array The array to query. | ||
| 8185 |      * @param {number} [n=1] The number of elements to take. | ||
| 8186 |      * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. | ||
| 8187 |      * @returns {Array} Returns the slice of `array`. | ||
| 8188 | * @example | ||
| 8189 | * | ||
| 8190 | * _.takeRight([1, 2, 3]); | ||
| 8191 | * // => [3] | ||
| 8192 | * | ||
| 8193 | * _.takeRight([1, 2, 3], 2); | ||
| 8194 | * // => [2, 3] | ||
| 8195 | * | ||
| 8196 | * _.takeRight([1, 2, 3], 5); | ||
| 8197 | * // => [1, 2, 3] | ||
| 8198 | * | ||
| 8199 | * _.takeRight([1, 2, 3], 0); | ||
| 8200 | * // => [] | ||
| 8201 | */ | ||
| 8202 |     function takeRight(array, n, guard) { | ||
| 8203 | var length = array == null ? 0 : array.length; | ||
| 8204 |       if (!length) { | ||
| 8205 | return []; | ||
| 8206 | } | ||
| 8207 | n = (guard || n === undefined) ? 1 : toInteger(n); | ||
| 8208 | n = length - n; | ||
| 8209 | return baseSlice(array, n < 0 ? 0 : n, length); | ||
| 8210 | } | ||
| 8211 | |||
| 8212 | /** | ||
| 8213 | * Creates a slice of `array` with elements taken from the end. Elements are | ||
| 8214 | * taken until `predicate` returns falsey. The predicate is invoked with | ||
| 8215 | * three arguments: (value, index, array). | ||
| 8216 | * | ||
| 8217 | * @static | ||
| 8218 | * @memberOf _ | ||
| 8219 | * @since 3.0.0 | ||
| 8220 | * @category Array | ||
| 8221 |      * @param {Array} array The array to query. | ||
| 8222 |      * @param {Function} [predicate=_.identity] The function invoked per iteration. | ||
| 8223 |      * @returns {Array} Returns the slice of `array`. | ||
| 8224 | * @example | ||
| 8225 | * | ||
| 8226 | * var users = [ | ||
| 8227 |      *   { 'user': 'barney',  'active': true }, | ||
| 8228 |      *   { 'user': 'fred',    'active': false }, | ||
| 8229 |      *   { 'user': 'pebbles', 'active': false } | ||
| 8230 | * ]; | ||
| 8231 | * | ||
| 8232 |      * _.takeRightWhile(users, function(o) { return !o.active; }); | ||
| 8233 | * // => objects for ['fred', 'pebbles'] | ||
| 8234 | * | ||
| 8235 | * // The `_.matches` iteratee shorthand. | ||
| 8236 |      * _.takeRightWhile(users, { 'user': 'pebbles', 'active': false }); | ||
| 8237 | * // => objects for ['pebbles'] | ||
| 8238 | * | ||
| 8239 | * // The `_.matchesProperty` iteratee shorthand. | ||
| 8240 | * _.takeRightWhile(users, ['active', false]); | ||
| 8241 | * // => objects for ['fred', 'pebbles'] | ||
| 8242 | * | ||
| 8243 | * // The `_.property` iteratee shorthand. | ||
| 8244 | * _.takeRightWhile(users, 'active'); | ||
| 8245 | * // => [] | ||
| 8246 | */ | ||
| 8247 |     function takeRightWhile(array, predicate) { | ||
| 8248 | return (array && array.length) | ||
| 8249 | ? baseWhile(array, getIteratee(predicate, 3), false, true) | ||
| 8250 | : []; | ||
| 8251 | } | ||
| 8252 | |||
| 8253 | /** | ||
| 8254 | * Creates a slice of `array` with elements taken from the beginning. Elements | ||
| 8255 | * are taken until `predicate` returns falsey. The predicate is invoked with | ||
| 8256 | * three arguments: (value, index, array). | ||
| 8257 | * | ||
| 8258 | * @static | ||
| 8259 | * @memberOf _ | ||
| 8260 | * @since 3.0.0 | ||
| 8261 | * @category Array | ||
| 8262 |      * @param {Array} array The array to query. | ||
| 8263 |      * @param {Function} [predicate=_.identity] The function invoked per iteration. | ||
| 8264 |      * @returns {Array} Returns the slice of `array`. | ||
| 8265 | * @example | ||
| 8266 | * | ||
| 8267 | * var users = [ | ||
| 8268 |      *   { 'user': 'barney',  'active': false }, | ||
| 8269 |      *   { 'user': 'fred',    'active': false }, | ||
| 8270 |      *   { 'user': 'pebbles', 'active': true } | ||
| 8271 | * ]; | ||
| 8272 | * | ||
| 8273 |      * _.takeWhile(users, function(o) { return !o.active; }); | ||
| 8274 | * // => objects for ['barney', 'fred'] | ||
| 8275 | * | ||
| 8276 | * // The `_.matches` iteratee shorthand. | ||
| 8277 |      * _.takeWhile(users, { 'user': 'barney', 'active': false }); | ||
| 8278 | * // => objects for ['barney'] | ||
| 8279 | * | ||
| 8280 | * // The `_.matchesProperty` iteratee shorthand. | ||
| 8281 | * _.takeWhile(users, ['active', false]); | ||
| 8282 | * // => objects for ['barney', 'fred'] | ||
| 8283 | * | ||
| 8284 | * // The `_.property` iteratee shorthand. | ||
| 8285 | * _.takeWhile(users, 'active'); | ||
| 8286 | * // => [] | ||
| 8287 | */ | ||
| 8288 |     function takeWhile(array, predicate) { | ||
| 8289 | return (array && array.length) | ||
| 8290 | ? baseWhile(array, getIteratee(predicate, 3)) | ||
| 8291 | : []; | ||
| 8292 | } | ||
| 8293 | |||
| 8294 | /** | ||
| 8295 | * Creates an array of unique values, in order, from all given arrays using | ||
| 8296 | * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) | ||
| 8297 | * for equality comparisons. | ||
| 8298 | * | ||
| 8299 | * @static | ||
| 8300 | * @memberOf _ | ||
| 8301 | * @since 0.1.0 | ||
| 8302 | * @category Array | ||
| 8303 |      * @param {...Array} [arrays] The arrays to inspect. | ||
| 8304 |      * @returns {Array} Returns the new array of combined values. | ||
| 8305 | * @example | ||
| 8306 | * | ||
| 8307 | * _.union([2], [1, 2]); | ||
| 8308 | * // => [2, 1] | ||
| 8309 | */ | ||
| 8310 |     var union = baseRest(function(arrays) { | ||
| 8311 | return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true)); | ||
| 8312 | }); | ||
| 8313 | |||
| 8314 | /** | ||
| 8315 | * This method is like `_.union` except that it accepts `iteratee` which is | ||
| 8316 | * invoked for each element of each `arrays` to generate the criterion by | ||
| 8317 | * which uniqueness is computed. Result values are chosen from the first | ||
| 8318 | * array in which the value occurs. The iteratee is invoked with one argument: | ||
| 8319 | * (value). | ||
| 8320 | * | ||
| 8321 | * @static | ||
| 8322 | * @memberOf _ | ||
| 8323 | * @since 4.0.0 | ||
| 8324 | * @category Array | ||
| 8325 |      * @param {...Array} [arrays] The arrays to inspect. | ||
| 8326 |      * @param {Function} [iteratee=_.identity] The iteratee invoked per element. | ||
| 8327 |      * @returns {Array} Returns the new array of combined values. | ||
| 8328 | * @example | ||
| 8329 | * | ||
| 8330 | * _.unionBy([2.1], [1.2, 2.3], Math.floor); | ||
| 8331 | * // => [2.1, 1.2] | ||
| 8332 | * | ||
| 8333 | * // The `_.property` iteratee shorthand. | ||
| 8334 |      * _.unionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x'); | ||
| 8335 |      * // => [{ 'x': 1 }, { 'x': 2 }] | ||
| 8336 | */ | ||
| 8337 |     var unionBy = baseRest(function(arrays) { | ||
| 8338 | var iteratee = last(arrays); | ||
| 8339 |       if (isArrayLikeObject(iteratee)) { | ||
| 8340 | iteratee = undefined; | ||
| 8341 | } | ||
| 8342 | return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), getIteratee(iteratee, 2)); | ||
| 8343 | }); | ||
| 8344 | |||
| 8345 | /** | ||
| 8346 | * This method is like `_.union` except that it accepts `comparator` which | ||
| 8347 | * is invoked to compare elements of `arrays`. Result values are chosen from | ||
| 8348 | * the first array in which the value occurs. The comparator is invoked | ||
| 8349 | * with two arguments: (arrVal, othVal). | ||
| 8350 | * | ||
| 8351 | * @static | ||
| 8352 | * @memberOf _ | ||
| 8353 | * @since 4.0.0 | ||
| 8354 | * @category Array | ||
| 8355 |      * @param {...Array} [arrays] The arrays to inspect. | ||
| 8356 |      * @param {Function} [comparator] The comparator invoked per element. | ||
| 8357 |      * @returns {Array} Returns the new array of combined values. | ||
| 8358 | * @example | ||
| 8359 | * | ||
| 8360 |      * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]; | ||
| 8361 |      * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }]; | ||
| 8362 | * | ||
| 8363 | * _.unionWith(objects, others, _.isEqual); | ||
| 8364 |      * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }] | ||
| 8365 | */ | ||
| 8366 |     var unionWith = baseRest(function(arrays) { | ||
| 8367 | var comparator = last(arrays); | ||
| 8368 | comparator = typeof comparator == 'function' ? comparator : undefined; | ||
| 8369 | return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), undefined, comparator); | ||
| 8370 | }); | ||
| 8371 | |||
| 8372 | /** | ||
| 8373 | * Creates a duplicate-free version of an array, using | ||
| 8374 | * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) | ||
| 8375 | * for equality comparisons, in which only the first occurrence of each element | ||
| 8376 | * is kept. The order of result values is determined by the order they occur | ||
| 8377 | * in the array. | ||
| 8378 | * | ||
| 8379 | * @static | ||
| 8380 | * @memberOf _ | ||
| 8381 | * @since 0.1.0 | ||
| 8382 | * @category Array | ||
| 8383 |      * @param {Array} array The array to inspect. | ||
| 8384 |      * @returns {Array} Returns the new duplicate free array. | ||
| 8385 | * @example | ||
| 8386 | * | ||
| 8387 | * _.uniq([2, 1, 2]); | ||
| 8388 | * // => [2, 1] | ||
| 8389 | */ | ||
| 8390 |     function uniq(array) { | ||
| 8391 | return (array && array.length) ? baseUniq(array) : []; | ||
| 8392 | } | ||
| 8393 | |||
| 8394 | /** | ||
| 8395 | * This method is like `_.uniq` except that it accepts `iteratee` which is | ||
| 8396 | * invoked for each element in `array` to generate the criterion by which | ||
| 8397 | * uniqueness is computed. The order of result values is determined by the | ||
| 8398 | * order they occur in the array. The iteratee is invoked with one argument: | ||
| 8399 | * (value). | ||
| 8400 | * | ||
| 8401 | * @static | ||
| 8402 | * @memberOf _ | ||
| 8403 | * @since 4.0.0 | ||
| 8404 | * @category Array | ||
| 8405 |      * @param {Array} array The array to inspect. | ||
| 8406 |      * @param {Function} [iteratee=_.identity] The iteratee invoked per element. | ||
| 8407 |      * @returns {Array} Returns the new duplicate free array. | ||
| 8408 | * @example | ||
| 8409 | * | ||
| 8410 | * _.uniqBy([2.1, 1.2, 2.3], Math.floor); | ||
| 8411 | * // => [2.1, 1.2] | ||
| 8412 | * | ||
| 8413 | * // The `_.property` iteratee shorthand. | ||
| 8414 |      * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x'); | ||
| 8415 |      * // => [{ 'x': 1 }, { 'x': 2 }] | ||
| 8416 | */ | ||
| 8417 |     function uniqBy(array, iteratee) { | ||
| 8418 | return (array && array.length) ? baseUniq(array, getIteratee(iteratee, 2)) : []; | ||
| 8419 | } | ||
| 8420 | |||
| 8421 | /** | ||
| 8422 | * This method is like `_.uniq` except that it accepts `comparator` which | ||
| 8423 | * is invoked to compare elements of `array`. The order of result values is | ||
| 8424 | * determined by the order they occur in the array.The comparator is invoked | ||
| 8425 | * with two arguments: (arrVal, othVal). | ||
| 8426 | * | ||
| 8427 | * @static | ||
| 8428 | * @memberOf _ | ||
| 8429 | * @since 4.0.0 | ||
| 8430 | * @category Array | ||
| 8431 |      * @param {Array} array The array to inspect. | ||
| 8432 |      * @param {Function} [comparator] The comparator invoked per element. | ||
| 8433 |      * @returns {Array} Returns the new duplicate free array. | ||
| 8434 | * @example | ||
| 8435 | * | ||
| 8436 |      * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 2 }]; | ||
| 8437 | * | ||
| 8438 | * _.uniqWith(objects, _.isEqual); | ||
| 8439 |      * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }] | ||
| 8440 | */ | ||
| 8441 |     function uniqWith(array, comparator) { | ||
| 8442 | comparator = typeof comparator == 'function' ? comparator : undefined; | ||
| 8443 | return (array && array.length) ? baseUniq(array, undefined, comparator) : []; | ||
| 8444 | } | ||
| 8445 | |||
| 8446 | /** | ||
| 8447 | * This method is like `_.zip` except that it accepts an array of grouped | ||
| 8448 | * elements and creates an array regrouping the elements to their pre-zip | ||
| 8449 | * configuration. | ||
| 8450 | * | ||
| 8451 | * @static | ||
| 8452 | * @memberOf _ | ||
| 8453 | * @since 1.2.0 | ||
| 8454 | * @category Array | ||
| 8455 |      * @param {Array} array The array of grouped elements to process. | ||
| 8456 |      * @returns {Array} Returns the new array of regrouped elements. | ||
| 8457 | * @example | ||
| 8458 | * | ||
| 8459 | * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]); | ||
| 8460 | * // => [['a', 1, true], ['b', 2, false]] | ||
| 8461 | * | ||
| 8462 | * _.unzip(zipped); | ||
| 8463 | * // => [['a', 'b'], [1, 2], [true, false]] | ||
| 8464 | */ | ||
| 8465 |     function unzip(array) { | ||
| 8466 |       if (!(array && array.length)) { | ||
| 8467 | return []; | ||
| 8468 | } | ||
| 8469 | var length = 0; | ||
| 8470 |       array = arrayFilter(array, function(group) { | ||
| 8471 |         if (isArrayLikeObject(group)) { | ||
| 8472 | length = nativeMax(group.length, length); | ||
| 8473 | return true; | ||
| 8474 | } | ||
| 8475 | }); | ||
| 8476 |       return baseTimes(length, function(index) { | ||
| 8477 | return arrayMap(array, baseProperty(index)); | ||
| 8478 | }); | ||
| 8479 | } | ||
| 8480 | |||
| 8481 | /** | ||
| 8482 | * This method is like `_.unzip` except that it accepts `iteratee` to specify | ||
| 8483 | * how regrouped values should be combined. The iteratee is invoked with the | ||
| 8484 | * elements of each group: (...group). | ||
| 8485 | * | ||
| 8486 | * @static | ||
| 8487 | * @memberOf _ | ||
| 8488 | * @since 3.8.0 | ||
| 8489 | * @category Array | ||
| 8490 |      * @param {Array} array The array of grouped elements to process. | ||
| 8491 |      * @param {Function} [iteratee=_.identity] The function to combine | ||
| 8492 | * regrouped values. | ||
| 8493 |      * @returns {Array} Returns the new array of regrouped elements. | ||
| 8494 | * @example | ||
| 8495 | * | ||
| 8496 | * var zipped = _.zip([1, 2], [10, 20], [100, 200]); | ||
| 8497 | * // => [[1, 10, 100], [2, 20, 200]] | ||
| 8498 | * | ||
| 8499 | * _.unzipWith(zipped, _.add); | ||
| 8500 | * // => [3, 30, 300] | ||
| 8501 | */ | ||
| 8502 |     function unzipWith(array, iteratee) { | ||
| 8503 |       if (!(array && array.length)) { | ||
| 8504 | return []; | ||
| 8505 | } | ||
| 8506 | var result = unzip(array); | ||
| 8507 |       if (iteratee == null) { | ||
| 8508 | return result; | ||
| 8509 | } | ||
| 8510 |       return arrayMap(result, function(group) { | ||
| 8511 | return apply(iteratee, undefined, group); | ||
| 8512 | }); | ||
| 8513 | } | ||
| 8514 | |||
| 8515 | /** | ||
| 8516 | * Creates an array excluding all given values using | ||
| 8517 | * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) | ||
| 8518 | * for equality comparisons. | ||
| 8519 | * | ||
| 8520 | * **Note:** Unlike `_.pull`, this method returns a new array. | ||
| 8521 | * | ||
| 8522 | * @static | ||
| 8523 | * @memberOf _ | ||
| 8524 | * @since 0.1.0 | ||
| 8525 | * @category Array | ||
| 8526 |      * @param {Array} array The array to inspect. | ||
| 8527 |      * @param {...*} [values] The values to exclude. | ||
| 8528 |      * @returns {Array} Returns the new array of filtered values. | ||
| 8529 | * @see _.difference, _.xor | ||
| 8530 | * @example | ||
| 8531 | * | ||
| 8532 | * _.without([2, 1, 2, 3], 1, 2); | ||
| 8533 | * // => [3] | ||
| 8534 | */ | ||
| 8535 |     var without = baseRest(function(array, values) { | ||
| 8536 | return isArrayLikeObject(array) | ||
| 8537 | ? baseDifference(array, values) | ||
| 8538 | : []; | ||
| 8539 | }); | ||
| 8540 | |||
| 8541 | /** | ||
| 8542 | * Creates an array of unique values that is the | ||
| 8543 | * [symmetric difference](https://en.wikipedia.org/wiki/Symmetric_difference) | ||
| 8544 | * of the given arrays. The order of result values is determined by the order | ||
| 8545 | * they occur in the arrays. | ||
| 8546 | * | ||
| 8547 | * @static | ||
| 8548 | * @memberOf _ | ||
| 8549 | * @since 2.4.0 | ||
| 8550 | * @category Array | ||
| 8551 |      * @param {...Array} [arrays] The arrays to inspect. | ||
| 8552 |      * @returns {Array} Returns the new array of filtered values. | ||
| 8553 | * @see _.difference, _.without | ||
| 8554 | * @example | ||
| 8555 | * | ||
| 8556 | * _.xor([2, 1], [2, 3]); | ||
| 8557 | * // => [1, 3] | ||
| 8558 | */ | ||
| 8559 |     var xor = baseRest(function(arrays) { | ||
| 8560 | return baseXor(arrayFilter(arrays, isArrayLikeObject)); | ||
| 8561 | }); | ||
| 8562 | |||
| 8563 | /** | ||
| 8564 | * This method is like `_.xor` except that it accepts `iteratee` which is | ||
| 8565 | * invoked for each element of each `arrays` to generate the criterion by | ||
| 8566 | * which by which they're compared. The order of result values is determined | ||
| 8567 | * by the order they occur in the arrays. The iteratee is invoked with one | ||
| 8568 | * argument: (value). | ||
| 8569 | * | ||
| 8570 | * @static | ||
| 8571 | * @memberOf _ | ||
| 8572 | * @since 4.0.0 | ||
| 8573 | * @category Array | ||
| 8574 |      * @param {...Array} [arrays] The arrays to inspect. | ||
| 8575 |      * @param {Function} [iteratee=_.identity] The iteratee invoked per element. | ||
| 8576 |      * @returns {Array} Returns the new array of filtered values. | ||
| 8577 | * @example | ||
| 8578 | * | ||
| 8579 | * _.xorBy([2.1, 1.2], [2.3, 3.4], Math.floor); | ||
| 8580 | * // => [1.2, 3.4] | ||
| 8581 | * | ||
| 8582 | * // The `_.property` iteratee shorthand. | ||
| 8583 |      * _.xorBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x'); | ||
| 8584 |      * // => [{ 'x': 2 }] | ||
| 8585 | */ | ||
| 8586 |     var xorBy = baseRest(function(arrays) { | ||
| 8587 | var iteratee = last(arrays); | ||
| 8588 |       if (isArrayLikeObject(iteratee)) { | ||
| 8589 | iteratee = undefined; | ||
| 8590 | } | ||
| 8591 | return baseXor(arrayFilter(arrays, isArrayLikeObject), getIteratee(iteratee, 2)); | ||
| 8592 | }); | ||
| 8593 | |||
| 8594 | /** | ||
| 8595 | * This method is like `_.xor` except that it accepts `comparator` which is | ||
| 8596 | * invoked to compare elements of `arrays`. The order of result values is | ||
| 8597 | * determined by the order they occur in the arrays. The comparator is invoked | ||
| 8598 | * with two arguments: (arrVal, othVal). | ||
| 8599 | * | ||
| 8600 | * @static | ||
| 8601 | * @memberOf _ | ||
| 8602 | * @since 4.0.0 | ||
| 8603 | * @category Array | ||
| 8604 |      * @param {...Array} [arrays] The arrays to inspect. | ||
| 8605 |      * @param {Function} [comparator] The comparator invoked per element. | ||
| 8606 |      * @returns {Array} Returns the new array of filtered values. | ||
| 8607 | * @example | ||
| 8608 | * | ||
| 8609 |      * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]; | ||
| 8610 |      * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }]; | ||
| 8611 | * | ||
| 8612 | * _.xorWith(objects, others, _.isEqual); | ||
| 8613 |      * // => [{ 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }] | ||
| 8614 | */ | ||
| 8615 |     var xorWith = baseRest(function(arrays) { | ||
| 8616 | var comparator = last(arrays); | ||
| 8617 | comparator = typeof comparator == 'function' ? comparator : undefined; | ||
| 8618 | return baseXor(arrayFilter(arrays, isArrayLikeObject), undefined, comparator); | ||
| 8619 | }); | ||
| 8620 | |||
| 8621 | /** | ||
| 8622 | * Creates an array of grouped elements, the first of which contains the | ||
| 8623 | * first elements of the given arrays, the second of which contains the | ||
| 8624 | * second elements of the given arrays, and so on. | ||
| 8625 | * | ||
| 8626 | * @static | ||
| 8627 | * @memberOf _ | ||
| 8628 | * @since 0.1.0 | ||
| 8629 | * @category Array | ||
| 8630 |      * @param {...Array} [arrays] The arrays to process. | ||
| 8631 |      * @returns {Array} Returns the new array of grouped elements. | ||
| 8632 | * @example | ||
| 8633 | * | ||
| 8634 | * _.zip(['a', 'b'], [1, 2], [true, false]); | ||
| 8635 | * // => [['a', 1, true], ['b', 2, false]] | ||
| 8636 | */ | ||
| 8637 | var zip = baseRest(unzip); | ||
| 8638 | |||
| 8639 | /** | ||
| 8640 | * This method is like `_.fromPairs` except that it accepts two arrays, | ||
| 8641 | * one of property identifiers and one of corresponding values. | ||
| 8642 | * | ||
| 8643 | * @static | ||
| 8644 | * @memberOf _ | ||
| 8645 | * @since 0.4.0 | ||
| 8646 | * @category Array | ||
| 8647 |      * @param {Array} [props=[]] The property identifiers. | ||
| 8648 |      * @param {Array} [values=[]] The property values. | ||
| 8649 |      * @returns {Object} Returns the new object. | ||
| 8650 | * @example | ||
| 8651 | * | ||
| 8652 | * _.zipObject(['a', 'b'], [1, 2]); | ||
| 8653 |      * // => { 'a': 1, 'b': 2 } | ||
| 8654 | */ | ||
| 8655 |     function zipObject(props, values) { | ||
| 8656 | return baseZipObject(props || [], values || [], assignValue); | ||
| 8657 | } | ||
| 8658 | |||
| 8659 | /** | ||
| 8660 | * This method is like `_.zipObject` except that it supports property paths. | ||
| 8661 | * | ||
| 8662 | * @static | ||
| 8663 | * @memberOf _ | ||
| 8664 | * @since 4.1.0 | ||
| 8665 | * @category Array | ||
| 8666 |      * @param {Array} [props=[]] The property identifiers. | ||
| 8667 |      * @param {Array} [values=[]] The property values. | ||
| 8668 |      * @returns {Object} Returns the new object. | ||
| 8669 | * @example | ||
| 8670 | * | ||
| 8671 | * _.zipObjectDeep(['a.b[0].c', 'a.b[1].d'], [1, 2]); | ||
| 8672 |      * // => { 'a': { 'b': [{ 'c': 1 }, { 'd': 2 }] } } | ||
| 8673 | */ | ||
| 8674 |     function zipObjectDeep(props, values) { | ||
| 8675 | return baseZipObject(props || [], values || [], baseSet); | ||
| 8676 | } | ||
| 8677 | |||
| 8678 | /** | ||
| 8679 | * This method is like `_.zip` except that it accepts `iteratee` to specify | ||
| 8680 | * how grouped values should be combined. The iteratee is invoked with the | ||
| 8681 | * elements of each group: (...group). | ||
| 8682 | * | ||
| 8683 | * @static | ||
| 8684 | * @memberOf _ | ||
| 8685 | * @since 3.8.0 | ||
| 8686 | * @category Array | ||
| 8687 |      * @param {...Array} [arrays] The arrays to process. | ||
| 8688 |      * @param {Function} [iteratee=_.identity] The function to combine | ||
| 8689 | * grouped values. | ||
| 8690 |      * @returns {Array} Returns the new array of grouped elements. | ||
| 8691 | * @example | ||
| 8692 | * | ||
| 8693 |      * _.zipWith([1, 2], [10, 20], [100, 200], function(a, b, c) { | ||
| 8694 | * return a + b + c; | ||
| 8695 | * }); | ||
| 8696 | * // => [111, 222] | ||
| 8697 | */ | ||
| 8698 |     var zipWith = baseRest(function(arrays) { | ||
| 8699 | var length = arrays.length, | ||
| 8700 | iteratee = length > 1 ? arrays[length - 1] : undefined; | ||
| 8701 | |||
| 8702 | iteratee = typeof iteratee == 'function' ? (arrays.pop(), iteratee) : undefined; | ||
| 8703 | return unzipWith(arrays, iteratee); | ||
| 8704 | }); | ||
| 8705 | |||
| 8706 | /*------------------------------------------------------------------------*/ | ||
| 8707 | |||
| 8708 | /** | ||
| 8709 | * Creates a `lodash` wrapper instance that wraps `value` with explicit method | ||
| 8710 | * chain sequences enabled. The result of such sequences must be unwrapped | ||
| 8711 | * with `_#value`. | ||
| 8712 | * | ||
| 8713 | * @static | ||
| 8714 | * @memberOf _ | ||
| 8715 | * @since 1.3.0 | ||
| 8716 | * @category Seq | ||
| 8717 |      * @param {*} value The value to wrap. | ||
| 8718 |      * @returns {Object} Returns the new `lodash` wrapper instance. | ||
| 8719 | * @example | ||
| 8720 | * | ||
| 8721 | * var users = [ | ||
| 8722 |      *   { 'user': 'barney',  'age': 36 }, | ||
| 8723 |      *   { 'user': 'fred',    'age': 40 }, | ||
| 8724 |      *   { 'user': 'pebbles', 'age': 1 } | ||
| 8725 | * ]; | ||
| 8726 | * | ||
| 8727 | * var youngest = _ | ||
| 8728 | * .chain(users) | ||
| 8729 |      *   .sortBy('age') | ||
| 8730 |      *   .map(function(o) { | ||
| 8731 | * return o.user + ' is ' + o.age; | ||
| 8732 | * }) | ||
| 8733 | * .head() | ||
| 8734 | * .value(); | ||
| 8735 | * // => 'pebbles is 1' | ||
| 8736 | */ | ||
| 8737 |     function chain(value) { | ||
| 8738 | var result = lodash(value); | ||
| 8739 | result.__chain__ = true; | ||
| 8740 | return result; | ||
| 8741 | } | ||
| 8742 | |||
| 8743 | /** | ||
| 8744 | * This method invokes `interceptor` and returns `value`. The interceptor | ||
| 8745 | * is invoked with one argument; (value). The purpose of this method is to | ||
| 8746 | * "tap into" a method chain sequence in order to modify intermediate results. | ||
| 8747 | * | ||
| 8748 | * @static | ||
| 8749 | * @memberOf _ | ||
| 8750 | * @since 0.1.0 | ||
| 8751 | * @category Seq | ||
| 8752 |      * @param {*} value The value to provide to `interceptor`. | ||
| 8753 |      * @param {Function} interceptor The function to invoke. | ||
| 8754 |      * @returns {*} Returns `value`. | ||
| 8755 | * @example | ||
| 8756 | * | ||
| 8757 | * _([1, 2, 3]) | ||
| 8758 |      *  .tap(function(array) { | ||
| 8759 | * // Mutate input array. | ||
| 8760 | * array.pop(); | ||
| 8761 | * }) | ||
| 8762 | * .reverse() | ||
| 8763 | * .value(); | ||
| 8764 | * // => [2, 1] | ||
| 8765 | */ | ||
| 8766 |     function tap(value, interceptor) { | ||
| 8767 | interceptor(value); | ||
| 8768 | return value; | ||
| 8769 | } | ||
| 8770 | |||
| 8771 | /** | ||
| 8772 | * This method is like `_.tap` except that it returns the result of `interceptor`. | ||
| 8773 | * The purpose of this method is to "pass thru" values replacing intermediate | ||
| 8774 | * results in a method chain sequence. | ||
| 8775 | * | ||
| 8776 | * @static | ||
| 8777 | * @memberOf _ | ||
| 8778 | * @since 3.0.0 | ||
| 8779 | * @category Seq | ||
| 8780 |      * @param {*} value The value to provide to `interceptor`. | ||
| 8781 |      * @param {Function} interceptor The function to invoke. | ||
| 8782 |      * @returns {*} Returns the result of `interceptor`. | ||
| 8783 | * @example | ||
| 8784 | * | ||
| 8785 |      * _('  abc  ') | ||
| 8786 | * .chain() | ||
| 8787 | * .trim() | ||
| 8788 |      *  .thru(function(value) { | ||
| 8789 | * return [value]; | ||
| 8790 | * }) | ||
| 8791 | * .value(); | ||
| 8792 | * // => ['abc'] | ||
| 8793 | */ | ||
| 8794 |     function thru(value, interceptor) { | ||
| 8795 | return interceptor(value); | ||
| 8796 | } | ||
| 8797 | |||
| 8798 | /** | ||
| 8799 | * This method is the wrapper version of `_.at`. | ||
| 8800 | * | ||
| 8801 | * @name at | ||
| 8802 | * @memberOf _ | ||
| 8803 | * @since 1.0.0 | ||
| 8804 | * @category Seq | ||
| 8805 |      * @param {...(string|string[])} [paths] The property paths to pick. | ||
| 8806 |      * @returns {Object} Returns the new `lodash` wrapper instance. | ||
| 8807 | * @example | ||
| 8808 | * | ||
| 8809 |      * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] }; | ||
| 8810 | * | ||
| 8811 | * _(object).at(['a[0].b.c', 'a[1]']).value(); | ||
| 8812 | * // => [3, 4] | ||
| 8813 | */ | ||
| 8814 |     var wrapperAt = flatRest(function(paths) { | ||
| 8815 | var length = paths.length, | ||
| 8816 | start = length ? paths[0] : 0, | ||
| 8817 | value = this.__wrapped__, | ||
| 8818 |           interceptor = function(object) { return baseAt(object, paths); }; | ||
| 8819 | |||
| 8820 | if (length > 1 || this.__actions__.length || | ||
| 8821 |           !(value instanceof LazyWrapper) || !isIndex(start)) { | ||
| 8822 | return this.thru(interceptor); | ||
| 8823 | } | ||
| 8824 | value = value.slice(start, +start + (length ? 1 : 0)); | ||
| 8825 |       value.__actions__.push({ | ||
| 8826 | 'func': thru, | ||
| 8827 | 'args': [interceptor], | ||
| 8828 | 'thisArg': undefined | ||
| 8829 | }); | ||
| 8830 |       return new LodashWrapper(value, this.__chain__).thru(function(array) { | ||
| 8831 |         if (length && !array.length) { | ||
| 8832 | array.push(undefined); | ||
| 8833 | } | ||
| 8834 | return array; | ||
| 8835 | }); | ||
| 8836 | }); | ||
| 8837 | |||
| 8838 | /** | ||
| 8839 | * Creates a `lodash` wrapper instance with explicit method chain sequences enabled. | ||
| 8840 | * | ||
| 8841 | * @name chain | ||
| 8842 | * @memberOf _ | ||
| 8843 | * @since 0.1.0 | ||
| 8844 | * @category Seq | ||
| 8845 |      * @returns {Object} Returns the new `lodash` wrapper instance. | ||
| 8846 | * @example | ||
| 8847 | * | ||
| 8848 | * var users = [ | ||
| 8849 |      *   { 'user': 'barney', 'age': 36 }, | ||
| 8850 |      *   { 'user': 'fred',   'age': 40 } | ||
| 8851 | * ]; | ||
| 8852 | * | ||
| 8853 | * // A sequence without explicit chaining. | ||
| 8854 | * _(users).head(); | ||
| 8855 |      * // => { 'user': 'barney', 'age': 36 } | ||
| 8856 | * | ||
| 8857 | * // A sequence with explicit chaining. | ||
| 8858 | * _(users) | ||
| 8859 | * .chain() | ||
| 8860 | * .head() | ||
| 8861 |      *   .pick('user') | ||
| 8862 | * .value(); | ||
| 8863 |      * // => { 'user': 'barney' } | ||
| 8864 | */ | ||
| 8865 |     function wrapperChain() { | ||
| 8866 | return chain(this); | ||
| 8867 | } | ||
| 8868 | |||
| 8869 | /** | ||
| 8870 | * Executes the chain sequence and returns the wrapped result. | ||
| 8871 | * | ||
| 8872 | * @name commit | ||
| 8873 | * @memberOf _ | ||
| 8874 | * @since 3.2.0 | ||
| 8875 | * @category Seq | ||
| 8876 |      * @returns {Object} Returns the new `lodash` wrapper instance. | ||
| 8877 | * @example | ||
| 8878 | * | ||
| 8879 | * var array = [1, 2]; | ||
| 8880 | * var wrapped = _(array).push(3); | ||
| 8881 | * | ||
| 8882 | * console.log(array); | ||
| 8883 | * // => [1, 2] | ||
| 8884 | * | ||
| 8885 | * wrapped = wrapped.commit(); | ||
| 8886 | * console.log(array); | ||
| 8887 | * // => [1, 2, 3] | ||
| 8888 | * | ||
| 8889 | * wrapped.last(); | ||
| 8890 | * // => 3 | ||
| 8891 | * | ||
| 8892 | * console.log(array); | ||
| 8893 | * // => [1, 2, 3] | ||
| 8894 | */ | ||
| 8895 |     function wrapperCommit() { | ||
| 8896 | return new LodashWrapper(this.value(), this.__chain__); | ||
| 8897 | } | ||
| 8898 | |||
| 8899 | /** | ||
| 8900 | * Gets the next value on a wrapped object following the | ||
| 8901 | * [iterator protocol](https://mdn.io/iteration_protocols#iterator). | ||
| 8902 | * | ||
| 8903 | * @name next | ||
| 8904 | * @memberOf _ | ||
| 8905 | * @since 4.0.0 | ||
| 8906 | * @category Seq | ||
| 8907 |      * @returns {Object} Returns the next iterator value. | ||
| 8908 | * @example | ||
| 8909 | * | ||
| 8910 | * var wrapped = _([1, 2]); | ||
| 8911 | * | ||
| 8912 | * wrapped.next(); | ||
| 8913 |      * // => { 'done': false, 'value': 1 } | ||
| 8914 | * | ||
| 8915 | * wrapped.next(); | ||
| 8916 |      * // => { 'done': false, 'value': 2 } | ||
| 8917 | * | ||
| 8918 | * wrapped.next(); | ||
| 8919 |      * // => { 'done': true, 'value': undefined } | ||
| 8920 | */ | ||
| 8921 |     function wrapperNext() { | ||
| 8922 |       if (this.__values__ === undefined) { | ||
| 8923 | this.__values__ = toArray(this.value()); | ||
| 8924 | } | ||
| 8925 | var done = this.__index__ >= this.__values__.length, | ||
| 8926 | value = done ? undefined : this.__values__[this.__index__++]; | ||
| 8927 | |||
| 8928 |       return { 'done': done, 'value': value }; | ||
| 8929 | } | ||
| 8930 | |||
| 8931 | /** | ||
| 8932 | * Enables the wrapper to be iterable. | ||
| 8933 | * | ||
| 8934 | * @name Symbol.iterator | ||
| 8935 | * @memberOf _ | ||
| 8936 | * @since 4.0.0 | ||
| 8937 | * @category Seq | ||
| 8938 |      * @returns {Object} Returns the wrapper object. | ||
| 8939 | * @example | ||
| 8940 | * | ||
| 8941 | * var wrapped = _([1, 2]); | ||
| 8942 | * | ||
| 8943 | * wrapped[Symbol.iterator]() === wrapped; | ||
| 8944 | * // => true | ||
| 8945 | * | ||
| 8946 | * Array.from(wrapped); | ||
| 8947 | * // => [1, 2] | ||
| 8948 | */ | ||
| 8949 |     function wrapperToIterator() { | ||
| 8950 | return this; | ||
| 8951 | } | ||
| 8952 | |||
| 8953 | /** | ||
| 8954 | * Creates a clone of the chain sequence planting `value` as the wrapped value. | ||
| 8955 | * | ||
| 8956 | * @name plant | ||
| 8957 | * @memberOf _ | ||
| 8958 | * @since 3.2.0 | ||
| 8959 | * @category Seq | ||
| 8960 |      * @param {*} value The value to plant. | ||
| 8961 |      * @returns {Object} Returns the new `lodash` wrapper instance. | ||
| 8962 | * @example | ||
| 8963 | * | ||
| 8964 |      * function square(n) { | ||
| 8965 | * return n * n; | ||
| 8966 | * } | ||
| 8967 | * | ||
| 8968 | * var wrapped = _([1, 2]).map(square); | ||
| 8969 | * var other = wrapped.plant([3, 4]); | ||
| 8970 | * | ||
| 8971 | * other.value(); | ||
| 8972 | * // => [9, 16] | ||
| 8973 | * | ||
| 8974 | * wrapped.value(); | ||
| 8975 | * // => [1, 4] | ||
| 8976 | */ | ||
| 8977 |     function wrapperPlant(value) { | ||
| 8978 | var result, | ||
| 8979 | parent = this; | ||
| 8980 | |||
| 8981 |       while (parent instanceof baseLodash) { | ||
| 8982 | var clone = wrapperClone(parent); | ||
| 8983 | clone.__index__ = 0; | ||
| 8984 | clone.__values__ = undefined; | ||
| 8985 |         if (result) { | ||
| 8986 | previous.__wrapped__ = clone; | ||
| 8987 |         } else { | ||
| 8988 | result = clone; | ||
| 8989 | } | ||
| 8990 | var previous = clone; | ||
| 8991 | parent = parent.__wrapped__; | ||
| 8992 | } | ||
| 8993 | previous.__wrapped__ = value; | ||
| 8994 | return result; | ||
| 8995 | } | ||
| 8996 | |||
| 8997 | /** | ||
| 8998 | * This method is the wrapper version of `_.reverse`. | ||
| 8999 | * | ||
| 9000 | * **Note:** This method mutates the wrapped array. | ||
| 9001 | * | ||
| 9002 | * @name reverse | ||
| 9003 | * @memberOf _ | ||
| 9004 | * @since 0.1.0 | ||
| 9005 | * @category Seq | ||
| 9006 |      * @returns {Object} Returns the new `lodash` wrapper instance. | ||
| 9007 | * @example | ||
| 9008 | * | ||
| 9009 | * var array = [1, 2, 3]; | ||
| 9010 | * | ||
| 9011 | * _(array).reverse().value() | ||
| 9012 | * // => [3, 2, 1] | ||
| 9013 | * | ||
| 9014 | * console.log(array); | ||
| 9015 | * // => [3, 2, 1] | ||
| 9016 | */ | ||
| 9017 |     function wrapperReverse() { | ||
| 9018 | var value = this.__wrapped__; | ||
| 9019 |       if (value instanceof LazyWrapper) { | ||
| 9020 | var wrapped = value; | ||
| 9021 |         if (this.__actions__.length) { | ||
| 9022 | wrapped = new LazyWrapper(this); | ||
| 9023 | } | ||
| 9024 | wrapped = wrapped.reverse(); | ||
| 9025 |         wrapped.__actions__.push({ | ||
| 9026 | 'func': thru, | ||
| 9027 | 'args': [reverse], | ||
| 9028 | 'thisArg': undefined | ||
| 9029 | }); | ||
| 9030 | return new LodashWrapper(wrapped, this.__chain__); | ||
| 9031 | } | ||
| 9032 | return this.thru(reverse); | ||
| 9033 | } | ||
| 9034 | |||
| 9035 | /** | ||
| 9036 | * Executes the chain sequence to resolve the unwrapped value. | ||
| 9037 | * | ||
| 9038 | * @name value | ||
| 9039 | * @memberOf _ | ||
| 9040 | * @since 0.1.0 | ||
| 9041 | * @alias toJSON, valueOf | ||
| 9042 | * @category Seq | ||
| 9043 |      * @returns {*} Returns the resolved unwrapped value. | ||
| 9044 | * @example | ||
| 9045 | * | ||
| 9046 | * _([1, 2, 3]).value(); | ||
| 9047 | * // => [1, 2, 3] | ||
| 9048 | */ | ||
| 9049 |     function wrapperValue() { | ||
| 9050 | return baseWrapperValue(this.__wrapped__, this.__actions__); | ||
| 9051 | } | ||
| 9052 | |||
| 9053 | /*------------------------------------------------------------------------*/ | ||
| 9054 | |||
| 9055 | /** | ||
| 9056 | * Creates an object composed of keys generated from the results of running | ||
| 9057 | * each element of `collection` thru `iteratee`. The corresponding value of | ||
| 9058 | * each key is the number of times the key was returned by `iteratee`. The | ||
| 9059 | * iteratee is invoked with one argument: (value). | ||
| 9060 | * | ||
| 9061 | * @static | ||
| 9062 | * @memberOf _ | ||
| 9063 | * @since 0.5.0 | ||
| 9064 | * @category Collection | ||
| 9065 |      * @param {Array|Object} collection The collection to iterate over. | ||
| 9066 |      * @param {Function} [iteratee=_.identity] The iteratee to transform keys. | ||
| 9067 |      * @returns {Object} Returns the composed aggregate object. | ||
| 9068 | * @example | ||
| 9069 | * | ||
| 9070 | * _.countBy([6.1, 4.2, 6.3], Math.floor); | ||
| 9071 |      * // => { '4': 1, '6': 2 } | ||
| 9072 | * | ||
| 9073 | * // The `_.property` iteratee shorthand. | ||
| 9074 | * _.countBy(['one', 'two', 'three'], 'length'); | ||
| 9075 |      * // => { '3': 2, '5': 1 } | ||
| 9076 | */ | ||
| 9077 |     var countBy = createAggregator(function(result, value, key) { | ||
| 9078 |       if (hasOwnProperty.call(result, key)) { | ||
| 9079 | ++result[key]; | ||
| 9080 |       } else { | ||
| 9081 | baseAssignValue(result, key, 1); | ||
| 9082 | } | ||
| 9083 | }); | ||
| 9084 | |||
| 9085 | /** | ||
| 9086 | * Checks if `predicate` returns truthy for **all** elements of `collection`. | ||
| 9087 | * Iteration is stopped once `predicate` returns falsey. The predicate is | ||
| 9088 | * invoked with three arguments: (value, index|key, collection). | ||
| 9089 | * | ||
| 9090 | * **Note:** This method returns `true` for | ||
| 9091 | * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because | ||
| 9092 | * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of | ||
| 9093 | * elements of empty collections. | ||
| 9094 | * | ||
| 9095 | * @static | ||
| 9096 | * @memberOf _ | ||
| 9097 | * @since 0.1.0 | ||
| 9098 | * @category Collection | ||
| 9099 |      * @param {Array|Object} collection The collection to iterate over. | ||
| 9100 |      * @param {Function} [predicate=_.identity] The function invoked per iteration. | ||
| 9101 |      * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. | ||
| 9102 |      * @returns {boolean} Returns `true` if all elements pass the predicate check, | ||
| 9103 | * else `false`. | ||
| 9104 | * @example | ||
| 9105 | * | ||
| 9106 | * _.every([true, 1, null, 'yes'], Boolean); | ||
| 9107 | * // => false | ||
| 9108 | * | ||
| 9109 | * var users = [ | ||
| 9110 |      *   { 'user': 'barney', 'age': 36, 'active': false }, | ||
| 9111 |      *   { 'user': 'fred',   'age': 40, 'active': false } | ||
| 9112 | * ]; | ||
| 9113 | * | ||
| 9114 | * // The `_.matches` iteratee shorthand. | ||
| 9115 |      * _.every(users, { 'user': 'barney', 'active': false }); | ||
| 9116 | * // => false | ||
| 9117 | * | ||
| 9118 | * // The `_.matchesProperty` iteratee shorthand. | ||
| 9119 | * _.every(users, ['active', false]); | ||
| 9120 | * // => true | ||
| 9121 | * | ||
| 9122 | * // The `_.property` iteratee shorthand. | ||
| 9123 | * _.every(users, 'active'); | ||
| 9124 | * // => false | ||
| 9125 | */ | ||
| 9126 |     function every(collection, predicate, guard) { | ||
| 9127 | var func = isArray(collection) ? arrayEvery : baseEvery; | ||
| 9128 |       if (guard && isIterateeCall(collection, predicate, guard)) { | ||
| 9129 | predicate = undefined; | ||
| 9130 | } | ||
| 9131 | return func(collection, getIteratee(predicate, 3)); | ||
| 9132 | } | ||
| 9133 | |||
| 9134 | /** | ||
| 9135 | * Iterates over elements of `collection`, returning an array of all elements | ||
| 9136 | * `predicate` returns truthy for. The predicate is invoked with three | ||
| 9137 | * arguments: (value, index|key, collection). | ||
| 9138 | * | ||
| 9139 | * **Note:** Unlike `_.remove`, this method returns a new array. | ||
| 9140 | * | ||
| 9141 | * @static | ||
| 9142 | * @memberOf _ | ||
| 9143 | * @since 0.1.0 | ||
| 9144 | * @category Collection | ||
| 9145 |      * @param {Array|Object} collection The collection to iterate over. | ||
| 9146 |      * @param {Function} [predicate=_.identity] The function invoked per iteration. | ||
| 9147 |      * @returns {Array} Returns the new filtered array. | ||
| 9148 | * @see _.reject | ||
| 9149 | * @example | ||
| 9150 | * | ||
| 9151 | * var users = [ | ||
| 9152 |      *   { 'user': 'barney', 'age': 36, 'active': true }, | ||
| 9153 |      *   { 'user': 'fred',   'age': 40, 'active': false } | ||
| 9154 | * ]; | ||
| 9155 | * | ||
| 9156 |      * _.filter(users, function(o) { return !o.active; }); | ||
| 9157 | * // => objects for ['fred'] | ||
| 9158 | * | ||
| 9159 | * // The `_.matches` iteratee shorthand. | ||
| 9160 |      * _.filter(users, { 'age': 36, 'active': true }); | ||
| 9161 | * // => objects for ['barney'] | ||
| 9162 | * | ||
| 9163 | * // The `_.matchesProperty` iteratee shorthand. | ||
| 9164 | * _.filter(users, ['active', false]); | ||
| 9165 | * // => objects for ['fred'] | ||
| 9166 | * | ||
| 9167 | * // The `_.property` iteratee shorthand. | ||
| 9168 | * _.filter(users, 'active'); | ||
| 9169 | * // => objects for ['barney'] | ||
| 9170 | */ | ||
| 9171 |     function filter(collection, predicate) { | ||
| 9172 | var func = isArray(collection) ? arrayFilter : baseFilter; | ||
| 9173 | return func(collection, getIteratee(predicate, 3)); | ||
| 9174 | } | ||
| 9175 | |||
| 9176 | /** | ||
| 9177 | * Iterates over elements of `collection`, returning the first element | ||
| 9178 | * `predicate` returns truthy for. The predicate is invoked with three | ||
| 9179 | * arguments: (value, index|key, collection). | ||
| 9180 | * | ||
| 9181 | * @static | ||
| 9182 | * @memberOf _ | ||
| 9183 | * @since 0.1.0 | ||
| 9184 | * @category Collection | ||
| 9185 |      * @param {Array|Object} collection The collection to inspect. | ||
| 9186 |      * @param {Function} [predicate=_.identity] The function invoked per iteration. | ||
| 9187 |      * @param {number} [fromIndex=0] The index to search from. | ||
| 9188 |      * @returns {*} Returns the matched element, else `undefined`. | ||
| 9189 | * @example | ||
| 9190 | * | ||
| 9191 | * var users = [ | ||
| 9192 |      *   { 'user': 'barney',  'age': 36, 'active': true }, | ||
| 9193 |      *   { 'user': 'fred',    'age': 40, 'active': false }, | ||
| 9194 |      *   { 'user': 'pebbles', 'age': 1,  'active': true } | ||
| 9195 | * ]; | ||
| 9196 | * | ||
| 9197 |      * _.find(users, function(o) { return o.age < 40; }); | ||
| 9198 | * // => object for 'barney' | ||
| 9199 | * | ||
| 9200 | * // The `_.matches` iteratee shorthand. | ||
| 9201 |      * _.find(users, { 'age': 1, 'active': true }); | ||
| 9202 | * // => object for 'pebbles' | ||
| 9203 | * | ||
| 9204 | * // The `_.matchesProperty` iteratee shorthand. | ||
| 9205 | * _.find(users, ['active', false]); | ||
| 9206 | * // => object for 'fred' | ||
| 9207 | * | ||
| 9208 | * // The `_.property` iteratee shorthand. | ||
| 9209 | * _.find(users, 'active'); | ||
| 9210 | * // => object for 'barney' | ||
| 9211 | */ | ||
| 9212 | var find = createFind(findIndex); | ||
| 9213 | |||
| 9214 | /** | ||
| 9215 | * This method is like `_.find` except that it iterates over elements of | ||
| 9216 | * `collection` from right to left. | ||
| 9217 | * | ||
| 9218 | * @static | ||
| 9219 | * @memberOf _ | ||
| 9220 | * @since 2.0.0 | ||
| 9221 | * @category Collection | ||
| 9222 |      * @param {Array|Object} collection The collection to inspect. | ||
| 9223 |      * @param {Function} [predicate=_.identity] The function invoked per iteration. | ||
| 9224 |      * @param {number} [fromIndex=collection.length-1] The index to search from. | ||
| 9225 |      * @returns {*} Returns the matched element, else `undefined`. | ||
| 9226 | * @example | ||
| 9227 | * | ||
| 9228 |      * _.findLast([1, 2, 3, 4], function(n) { | ||
| 9229 | * return n % 2 == 1; | ||
| 9230 | * }); | ||
| 9231 | * // => 3 | ||
| 9232 | */ | ||
| 9233 | var findLast = createFind(findLastIndex); | ||
| 9234 | |||
| 9235 | /** | ||
| 9236 | * Creates a flattened array of values by running each element in `collection` | ||
| 9237 | * thru `iteratee` and flattening the mapped results. The iteratee is invoked | ||
| 9238 | * with three arguments: (value, index|key, collection). | ||
| 9239 | * | ||
| 9240 | * @static | ||
| 9241 | * @memberOf _ | ||
| 9242 | * @since 4.0.0 | ||
| 9243 | * @category Collection | ||
| 9244 |      * @param {Array|Object} collection The collection to iterate over. | ||
| 9245 |      * @param {Function} [iteratee=_.identity] The function invoked per iteration. | ||
| 9246 |      * @returns {Array} Returns the new flattened array. | ||
| 9247 | * @example | ||
| 9248 | * | ||
| 9249 |      * function duplicate(n) { | ||
| 9250 | * return [n, n]; | ||
| 9251 | * } | ||
| 9252 | * | ||
| 9253 | * _.flatMap([1, 2], duplicate); | ||
| 9254 | * // => [1, 1, 2, 2] | ||
| 9255 | */ | ||
| 9256 |     function flatMap(collection, iteratee) { | ||
| 9257 | return baseFlatten(map(collection, iteratee), 1); | ||
| 9258 | } | ||
| 9259 | |||
| 9260 | /** | ||
| 9261 | * This method is like `_.flatMap` except that it recursively flattens the | ||
| 9262 | * mapped results. | ||
| 9263 | * | ||
| 9264 | * @static | ||
| 9265 | * @memberOf _ | ||
| 9266 | * @since 4.7.0 | ||
| 9267 | * @category Collection | ||
| 9268 |      * @param {Array|Object} collection The collection to iterate over. | ||
| 9269 |      * @param {Function} [iteratee=_.identity] The function invoked per iteration. | ||
| 9270 |      * @returns {Array} Returns the new flattened array. | ||
| 9271 | * @example | ||
| 9272 | * | ||
| 9273 |      * function duplicate(n) { | ||
| 9274 | * return [[[n, n]]]; | ||
| 9275 | * } | ||
| 9276 | * | ||
| 9277 | * _.flatMapDeep([1, 2], duplicate); | ||
| 9278 | * // => [1, 1, 2, 2] | ||
| 9279 | */ | ||
| 9280 |     function flatMapDeep(collection, iteratee) { | ||
| 9281 | return baseFlatten(map(collection, iteratee), INFINITY); | ||
| 9282 | } | ||
| 9283 | |||
| 9284 | /** | ||
| 9285 | * This method is like `_.flatMap` except that it recursively flattens the | ||
| 9286 | * mapped results up to `depth` times. | ||
| 9287 | * | ||
| 9288 | * @static | ||
| 9289 | * @memberOf _ | ||
| 9290 | * @since 4.7.0 | ||
| 9291 | * @category Collection | ||
| 9292 |      * @param {Array|Object} collection The collection to iterate over. | ||
| 9293 |      * @param {Function} [iteratee=_.identity] The function invoked per iteration. | ||
| 9294 |      * @param {number} [depth=1] The maximum recursion depth. | ||
| 9295 |      * @returns {Array} Returns the new flattened array. | ||
| 9296 | * @example | ||
| 9297 | * | ||
| 9298 |      * function duplicate(n) { | ||
| 9299 | * return [[[n, n]]]; | ||
| 9300 | * } | ||
| 9301 | * | ||
| 9302 | * _.flatMapDepth([1, 2], duplicate, 2); | ||
| 9303 | * // => [[1, 1], [2, 2]] | ||
| 9304 | */ | ||
| 9305 |     function flatMapDepth(collection, iteratee, depth) { | ||
| 9306 | depth = depth === undefined ? 1 : toInteger(depth); | ||
| 9307 | return baseFlatten(map(collection, iteratee), depth); | ||
| 9308 | } | ||
| 9309 | |||
| 9310 | /** | ||
| 9311 | * Iterates over elements of `collection` and invokes `iteratee` for each element. | ||
| 9312 | * The iteratee is invoked with three arguments: (value, index|key, collection). | ||
| 9313 | * Iteratee functions may exit iteration early by explicitly returning `false`. | ||
| 9314 | * | ||
| 9315 | * **Note:** As with other "Collections" methods, objects with a "length" | ||
| 9316 | * property are iterated like arrays. To avoid this behavior use `_.forIn` | ||
| 9317 | * or `_.forOwn` for object iteration. | ||
| 9318 | * | ||
| 9319 | * @static | ||
| 9320 | * @memberOf _ | ||
| 9321 | * @since 0.1.0 | ||
| 9322 | * @alias each | ||
| 9323 | * @category Collection | ||
| 9324 |      * @param {Array|Object} collection The collection to iterate over. | ||
| 9325 |      * @param {Function} [iteratee=_.identity] The function invoked per iteration. | ||
| 9326 |      * @returns {Array|Object} Returns `collection`. | ||
| 9327 | * @see _.forEachRight | ||
| 9328 | * @example | ||
| 9329 | * | ||
| 9330 |      * _.forEach([1, 2], function(value) { | ||
| 9331 | * console.log(value); | ||
| 9332 | * }); | ||
| 9333 | * // => Logs `1` then `2`. | ||
| 9334 | * | ||
| 9335 |      * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) { | ||
| 9336 | * console.log(key); | ||
| 9337 | * }); | ||
| 9338 | * // => Logs 'a' then 'b' (iteration order is not guaranteed). | ||
| 9339 | */ | ||
| 9340 |     function forEach(collection, iteratee) { | ||
| 9341 | var func = isArray(collection) ? arrayEach : baseEach; | ||
| 9342 | return func(collection, getIteratee(iteratee, 3)); | ||
| 9343 | } | ||
| 9344 | |||
| 9345 | /** | ||
| 9346 | * This method is like `_.forEach` except that it iterates over elements of | ||
| 9347 | * `collection` from right to left. | ||
| 9348 | * | ||
| 9349 | * @static | ||
| 9350 | * @memberOf _ | ||
| 9351 | * @since 2.0.0 | ||
| 9352 | * @alias eachRight | ||
| 9353 | * @category Collection | ||
| 9354 |      * @param {Array|Object} collection The collection to iterate over. | ||
| 9355 |      * @param {Function} [iteratee=_.identity] The function invoked per iteration. | ||
| 9356 |      * @returns {Array|Object} Returns `collection`. | ||
| 9357 | * @see _.forEach | ||
| 9358 | * @example | ||
| 9359 | * | ||
| 9360 |      * _.forEachRight([1, 2], function(value) { | ||
| 9361 | * console.log(value); | ||
| 9362 | * }); | ||
| 9363 | * // => Logs `2` then `1`. | ||
| 9364 | */ | ||
| 9365 |     function forEachRight(collection, iteratee) { | ||
| 9366 | var func = isArray(collection) ? arrayEachRight : baseEachRight; | ||
| 9367 | return func(collection, getIteratee(iteratee, 3)); | ||
| 9368 | } | ||
| 9369 | |||
| 9370 | /** | ||
| 9371 | * Creates an object composed of keys generated from the results of running | ||
| 9372 | * each element of `collection` thru `iteratee`. The order of grouped values | ||
| 9373 | * is determined by the order they occur in `collection`. The corresponding | ||
| 9374 | * value of each key is an array of elements responsible for generating the | ||
| 9375 | * key. The iteratee is invoked with one argument: (value). | ||
| 9376 | * | ||
| 9377 | * @static | ||
| 9378 | * @memberOf _ | ||
| 9379 | * @since 0.1.0 | ||
| 9380 | * @category Collection | ||
| 9381 |      * @param {Array|Object} collection The collection to iterate over. | ||
| 9382 |      * @param {Function} [iteratee=_.identity] The iteratee to transform keys. | ||
| 9383 |      * @returns {Object} Returns the composed aggregate object. | ||
| 9384 | * @example | ||
| 9385 | * | ||
| 9386 | * _.groupBy([6.1, 4.2, 6.3], Math.floor); | ||
| 9387 |      * // => { '4': [4.2], '6': [6.1, 6.3] } | ||
| 9388 | * | ||
| 9389 | * // The `_.property` iteratee shorthand. | ||
| 9390 | * _.groupBy(['one', 'two', 'three'], 'length'); | ||
| 9391 |      * // => { '3': ['one', 'two'], '5': ['three'] } | ||
| 9392 | */ | ||
| 9393 |     var groupBy = createAggregator(function(result, value, key) { | ||
| 9394 |       if (hasOwnProperty.call(result, key)) { | ||
| 9395 | result[key].push(value); | ||
| 9396 |       } else { | ||
| 9397 | baseAssignValue(result, key, [value]); | ||
| 9398 | } | ||
| 9399 | }); | ||
| 9400 | |||
| 9401 | /** | ||
| 9402 | * Checks if `value` is in `collection`. If `collection` is a string, it's | ||
| 9403 | * checked for a substring of `value`, otherwise | ||
| 9404 | * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) | ||
| 9405 | * is used for equality comparisons. If `fromIndex` is negative, it's used as | ||
| 9406 | * the offset from the end of `collection`. | ||
| 9407 | * | ||
| 9408 | * @static | ||
| 9409 | * @memberOf _ | ||
| 9410 | * @since 0.1.0 | ||
| 9411 | * @category Collection | ||
| 9412 |      * @param {Array|Object|string} collection The collection to inspect. | ||
| 9413 |      * @param {*} value The value to search for. | ||
| 9414 |      * @param {number} [fromIndex=0] The index to search from. | ||
| 9415 |      * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`. | ||
| 9416 |      * @returns {boolean} Returns `true` if `value` is found, else `false`. | ||
| 9417 | * @example | ||
| 9418 | * | ||
| 9419 | * _.includes([1, 2, 3], 1); | ||
| 9420 | * // => true | ||
| 9421 | * | ||
| 9422 | * _.includes([1, 2, 3], 1, 2); | ||
| 9423 | * // => false | ||
| 9424 | * | ||
| 9425 |      * _.includes({ 'a': 1, 'b': 2 }, 1); | ||
| 9426 | * // => true | ||
| 9427 | * | ||
| 9428 |      * _.includes('abcd', 'bc'); | ||
| 9429 | * // => true | ||
| 9430 | */ | ||
| 9431 |     function includes(collection, value, fromIndex, guard) { | ||
| 9432 | collection = isArrayLike(collection) ? collection : values(collection); | ||
| 9433 | fromIndex = (fromIndex && !guard) ? toInteger(fromIndex) : 0; | ||
| 9434 | |||
| 9435 | var length = collection.length; | ||
| 9436 |       if (fromIndex < 0) { | ||
| 9437 | fromIndex = nativeMax(length + fromIndex, 0); | ||
| 9438 | } | ||
| 9439 | return isString(collection) | ||
| 9440 | ? (fromIndex <= length && collection.indexOf(value, fromIndex) > -1) | ||
| 9441 | : (!!length && baseIndexOf(collection, value, fromIndex) > -1); | ||
| 9442 | } | ||
| 9443 | |||
| 9444 | /** | ||
| 9445 | * Invokes the method at `path` of each element in `collection`, returning | ||
| 9446 | * an array of the results of each invoked method. Any additional arguments | ||
| 9447 | * are provided to each invoked method. If `path` is a function, it's invoked | ||
| 9448 | * for, and `this` bound to, each element in `collection`. | ||
| 9449 | * | ||
| 9450 | * @static | ||
| 9451 | * @memberOf _ | ||
| 9452 | * @since 4.0.0 | ||
| 9453 | * @category Collection | ||
| 9454 |      * @param {Array|Object} collection The collection to iterate over. | ||
| 9455 |      * @param {Array|Function|string} path The path of the method to invoke or | ||
| 9456 | * the function invoked per iteration. | ||
| 9457 |      * @param {...*} [args] The arguments to invoke each method with. | ||
| 9458 |      * @returns {Array} Returns the array of results. | ||
| 9459 | * @example | ||
| 9460 | * | ||
| 9461 | * _.invokeMap([[5, 1, 7], [3, 2, 1]], 'sort'); | ||
| 9462 | * // => [[1, 5, 7], [1, 2, 3]] | ||
| 9463 | * | ||
| 9464 | * _.invokeMap([123, 456], String.prototype.split, ''); | ||
| 9465 | * // => [['1', '2', '3'], ['4', '5', '6']] | ||
| 9466 | */ | ||
| 9467 |     var invokeMap = baseRest(function(collection, path, args) { | ||
| 9468 | var index = -1, | ||
| 9469 | isFunc = typeof path == 'function', | ||
| 9470 | result = isArrayLike(collection) ? Array(collection.length) : []; | ||
| 9471 | |||
| 9472 |       baseEach(collection, function(value) { | ||
| 9473 | result[++index] = isFunc ? apply(path, value, args) : baseInvoke(value, path, args); | ||
| 9474 | }); | ||
| 9475 | return result; | ||
| 9476 | }); | ||
| 9477 | |||
| 9478 | /** | ||
| 9479 | * Creates an object composed of keys generated from the results of running | ||
| 9480 | * each element of `collection` thru `iteratee`. The corresponding value of | ||
| 9481 | * each key is the last element responsible for generating the key. The | ||
| 9482 | * iteratee is invoked with one argument: (value). | ||
| 9483 | * | ||
| 9484 | * @static | ||
| 9485 | * @memberOf _ | ||
| 9486 | * @since 4.0.0 | ||
| 9487 | * @category Collection | ||
| 9488 |      * @param {Array|Object} collection The collection to iterate over. | ||
| 9489 |      * @param {Function} [iteratee=_.identity] The iteratee to transform keys. | ||
| 9490 |      * @returns {Object} Returns the composed aggregate object. | ||
| 9491 | * @example | ||
| 9492 | * | ||
| 9493 | * var array = [ | ||
| 9494 |      *   { 'dir': 'left', 'code': 97 }, | ||
| 9495 |      *   { 'dir': 'right', 'code': 100 } | ||
| 9496 | * ]; | ||
| 9497 | * | ||
| 9498 |      * _.keyBy(array, function(o) { | ||
| 9499 | * return String.fromCharCode(o.code); | ||
| 9500 | * }); | ||
| 9501 |      * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } } | ||
| 9502 | * | ||
| 9503 | * _.keyBy(array, 'dir'); | ||
| 9504 |      * // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } } | ||
| 9505 | */ | ||
| 9506 |     var keyBy = createAggregator(function(result, value, key) { | ||
| 9507 | baseAssignValue(result, key, value); | ||
| 9508 | }); | ||
| 9509 | |||
| 9510 | /** | ||
| 9511 | * Creates an array of values by running each element in `collection` thru | ||
| 9512 | * `iteratee`. The iteratee is invoked with three arguments: | ||
| 9513 | * (value, index|key, collection). | ||
| 9514 | * | ||
| 9515 | * Many lodash methods are guarded to work as iteratees for methods like | ||
| 9516 | * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`. | ||
| 9517 | * | ||
| 9518 | * The guarded methods are: | ||
| 9519 | * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`, | ||
| 9520 | * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`, | ||
| 9521 | * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`, | ||
| 9522 | * `template`, `trim`, `trimEnd`, `trimStart`, and `words` | ||
| 9523 | * | ||
| 9524 | * @static | ||
| 9525 | * @memberOf _ | ||
| 9526 | * @since 0.1.0 | ||
| 9527 | * @category Collection | ||
| 9528 |      * @param {Array|Object} collection The collection to iterate over. | ||
| 9529 |      * @param {Function} [iteratee=_.identity] The function invoked per iteration. | ||
| 9530 |      * @returns {Array} Returns the new mapped array. | ||
| 9531 | * @example | ||
| 9532 | * | ||
| 9533 |      * function square(n) { | ||
| 9534 | * return n * n; | ||
| 9535 | * } | ||
| 9536 | * | ||
| 9537 | * _.map([4, 8], square); | ||
| 9538 | * // => [16, 64] | ||
| 9539 | * | ||
| 9540 |      * _.map({ 'a': 4, 'b': 8 }, square); | ||
| 9541 | * // => [16, 64] (iteration order is not guaranteed) | ||
| 9542 | * | ||
| 9543 | * var users = [ | ||
| 9544 |      *   { 'user': 'barney' }, | ||
| 9545 |      *   { 'user': 'fred' } | ||
| 9546 | * ]; | ||
| 9547 | * | ||
| 9548 | * // The `_.property` iteratee shorthand. | ||
| 9549 | * _.map(users, 'user'); | ||
| 9550 | * // => ['barney', 'fred'] | ||
| 9551 | */ | ||
| 9552 |     function map(collection, iteratee) { | ||
| 9553 | var func = isArray(collection) ? arrayMap : baseMap; | ||
| 9554 | return func(collection, getIteratee(iteratee, 3)); | ||
| 9555 | } | ||
| 9556 | |||
| 9557 | /** | ||
| 9558 | * This method is like `_.sortBy` except that it allows specifying the sort | ||
| 9559 | * orders of the iteratees to sort by. If `orders` is unspecified, all values | ||
| 9560 | * are sorted in ascending order. Otherwise, specify an order of "desc" for | ||
| 9561 | * descending or "asc" for ascending sort order of corresponding values. | ||
| 9562 | * | ||
| 9563 | * @static | ||
| 9564 | * @memberOf _ | ||
| 9565 | * @since 4.0.0 | ||
| 9566 | * @category Collection | ||
| 9567 |      * @param {Array|Object} collection The collection to iterate over. | ||
| 9568 |      * @param {Array[]|Function[]|Object[]|string[]} [iteratees=[_.identity]] | ||
| 9569 | * The iteratees to sort by. | ||
| 9570 |      * @param {string[]} [orders] The sort orders of `iteratees`. | ||
| 9571 |      * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`. | ||
| 9572 |      * @returns {Array} Returns the new sorted array. | ||
| 9573 | * @example | ||
| 9574 | * | ||
| 9575 | * var users = [ | ||
| 9576 |      *   { 'user': 'fred',   'age': 48 }, | ||
| 9577 |      *   { 'user': 'barney', 'age': 34 }, | ||
| 9578 |      *   { 'user': 'fred',   'age': 40 }, | ||
| 9579 |      *   { 'user': 'barney', 'age': 36 } | ||
| 9580 | * ]; | ||
| 9581 | * | ||
| 9582 | * // Sort by `user` in ascending order and by `age` in descending order. | ||
| 9583 | * _.orderBy(users, ['user', 'age'], ['asc', 'desc']); | ||
| 9584 | * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]] | ||
| 9585 | */ | ||
| 9586 |     function orderBy(collection, iteratees, orders, guard) { | ||
| 9587 |       if (collection == null) { | ||
| 9588 | return []; | ||
| 9589 | } | ||
| 9590 |       if (!isArray(iteratees)) { | ||
| 9591 | iteratees = iteratees == null ? [] : [iteratees]; | ||
| 9592 | } | ||
| 9593 | orders = guard ? undefined : orders; | ||
| 9594 |       if (!isArray(orders)) { | ||
| 9595 | orders = orders == null ? [] : [orders]; | ||
| 9596 | } | ||
| 9597 | return baseOrderBy(collection, iteratees, orders); | ||
| 9598 | } | ||
| 9599 | |||
| 9600 | /** | ||
| 9601 | * Creates an array of elements split into two groups, the first of which | ||
| 9602 | * contains elements `predicate` returns truthy for, the second of which | ||
| 9603 | * contains elements `predicate` returns falsey for. The predicate is | ||
| 9604 | * invoked with one argument: (value). | ||
| 9605 | * | ||
| 9606 | * @static | ||
| 9607 | * @memberOf _ | ||
| 9608 | * @since 3.0.0 | ||
| 9609 | * @category Collection | ||
| 9610 |      * @param {Array|Object} collection The collection to iterate over. | ||
| 9611 |      * @param {Function} [predicate=_.identity] The function invoked per iteration. | ||
| 9612 |      * @returns {Array} Returns the array of grouped elements. | ||
| 9613 | * @example | ||
| 9614 | * | ||
| 9615 | * var users = [ | ||
| 9616 |      *   { 'user': 'barney',  'age': 36, 'active': false }, | ||
| 9617 |      *   { 'user': 'fred',    'age': 40, 'active': true }, | ||
| 9618 |      *   { 'user': 'pebbles', 'age': 1,  'active': false } | ||
| 9619 | * ]; | ||
| 9620 | * | ||
| 9621 |      * _.partition(users, function(o) { return o.active; }); | ||
| 9622 | * // => objects for [['fred'], ['barney', 'pebbles']] | ||
| 9623 | * | ||
| 9624 | * // The `_.matches` iteratee shorthand. | ||
| 9625 |      * _.partition(users, { 'age': 1, 'active': false }); | ||
| 9626 | * // => objects for [['pebbles'], ['barney', 'fred']] | ||
| 9627 | * | ||
| 9628 | * // The `_.matchesProperty` iteratee shorthand. | ||
| 9629 | * _.partition(users, ['active', false]); | ||
| 9630 | * // => objects for [['barney', 'pebbles'], ['fred']] | ||
| 9631 | * | ||
| 9632 | * // The `_.property` iteratee shorthand. | ||
| 9633 | * _.partition(users, 'active'); | ||
| 9634 | * // => objects for [['fred'], ['barney', 'pebbles']] | ||
| 9635 | */ | ||
| 9636 |     var partition = createAggregator(function(result, value, key) { | ||
| 9637 | result[key ? 0 : 1].push(value); | ||
| 9638 |     }, function() { return [[], []]; }); | ||
| 9639 | |||
| 9640 | /** | ||
| 9641 | * Reduces `collection` to a value which is the accumulated result of running | ||
| 9642 | * each element in `collection` thru `iteratee`, where each successive | ||
| 9643 | * invocation is supplied the return value of the previous. If `accumulator` | ||
| 9644 | * is not given, the first element of `collection` is used as the initial | ||
| 9645 | * value. The iteratee is invoked with four arguments: | ||
| 9646 | * (accumulator, value, index|key, collection). | ||
| 9647 | * | ||
| 9648 | * Many lodash methods are guarded to work as iteratees for methods like | ||
| 9649 | * `_.reduce`, `_.reduceRight`, and `_.transform`. | ||
| 9650 | * | ||
| 9651 | * The guarded methods are: | ||
| 9652 | * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`, | ||
| 9653 | * and `sortBy` | ||
| 9654 | * | ||
| 9655 | * @static | ||
| 9656 | * @memberOf _ | ||
| 9657 | * @since 0.1.0 | ||
| 9658 | * @category Collection | ||
| 9659 |      * @param {Array|Object} collection The collection to iterate over. | ||
| 9660 |      * @param {Function} [iteratee=_.identity] The function invoked per iteration. | ||
| 9661 |      * @param {*} [accumulator] The initial value. | ||
| 9662 |      * @returns {*} Returns the accumulated value. | ||
| 9663 | * @see _.reduceRight | ||
| 9664 | * @example | ||
| 9665 | * | ||
| 9666 |      * _.reduce([1, 2], function(sum, n) { | ||
| 9667 | * return sum + n; | ||
| 9668 | * }, 0); | ||
| 9669 | * // => 3 | ||
| 9670 | * | ||
| 9671 |      * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) { | ||
| 9672 | * (result[value] || (result[value] = [])).push(key); | ||
| 9673 | * return result; | ||
| 9674 |      * }, {}); | ||
| 9675 |      * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed) | ||
| 9676 | */ | ||
| 9677 |     function reduce(collection, iteratee, accumulator) { | ||
| 9678 | var func = isArray(collection) ? arrayReduce : baseReduce, | ||
| 9679 | initAccum = arguments.length < 3; | ||
| 9680 | |||
| 9681 | return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEach); | ||
| 9682 | } | ||
| 9683 | |||
| 9684 | /** | ||
| 9685 | * This method is like `_.reduce` except that it iterates over elements of | ||
| 9686 | * `collection` from right to left. | ||
| 9687 | * | ||
| 9688 | * @static | ||
| 9689 | * @memberOf _ | ||
| 9690 | * @since 0.1.0 | ||
| 9691 | * @category Collection | ||
| 9692 |      * @param {Array|Object} collection The collection to iterate over. | ||
| 9693 |      * @param {Function} [iteratee=_.identity] The function invoked per iteration. | ||
| 9694 |      * @param {*} [accumulator] The initial value. | ||
| 9695 |      * @returns {*} Returns the accumulated value. | ||
| 9696 | * @see _.reduce | ||
| 9697 | * @example | ||
| 9698 | * | ||
| 9699 | * var array = [[0, 1], [2, 3], [4, 5]]; | ||
| 9700 | * | ||
| 9701 |      * _.reduceRight(array, function(flattened, other) { | ||
| 9702 | * return flattened.concat(other); | ||
| 9703 | * }, []); | ||
| 9704 | * // => [4, 5, 2, 3, 0, 1] | ||
| 9705 | */ | ||
| 9706 |     function reduceRight(collection, iteratee, accumulator) { | ||
| 9707 | var func = isArray(collection) ? arrayReduceRight : baseReduce, | ||
| 9708 | initAccum = arguments.length < 3; | ||
| 9709 | |||
| 9710 | return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEachRight); | ||
| 9711 | } | ||
| 9712 | |||
| 9713 | /** | ||
| 9714 | * The opposite of `_.filter`; this method returns the elements of `collection` | ||
| 9715 | * that `predicate` does **not** return truthy for. | ||
| 9716 | * | ||
| 9717 | * @static | ||
| 9718 | * @memberOf _ | ||
| 9719 | * @since 0.1.0 | ||
| 9720 | * @category Collection | ||
| 9721 |      * @param {Array|Object} collection The collection to iterate over. | ||
| 9722 |      * @param {Function} [predicate=_.identity] The function invoked per iteration. | ||
| 9723 |      * @returns {Array} Returns the new filtered array. | ||
| 9724 | * @see _.filter | ||
| 9725 | * @example | ||
| 9726 | * | ||
| 9727 | * var users = [ | ||
| 9728 |      *   { 'user': 'barney', 'age': 36, 'active': false }, | ||
| 9729 |      *   { 'user': 'fred',   'age': 40, 'active': true } | ||
| 9730 | * ]; | ||
| 9731 | * | ||
| 9732 |      * _.reject(users, function(o) { return !o.active; }); | ||
| 9733 | * // => objects for ['fred'] | ||
| 9734 | * | ||
| 9735 | * // The `_.matches` iteratee shorthand. | ||
| 9736 |      * _.reject(users, { 'age': 40, 'active': true }); | ||
| 9737 | * // => objects for ['barney'] | ||
| 9738 | * | ||
| 9739 | * // The `_.matchesProperty` iteratee shorthand. | ||
| 9740 | * _.reject(users, ['active', false]); | ||
| 9741 | * // => objects for ['fred'] | ||
| 9742 | * | ||
| 9743 | * // The `_.property` iteratee shorthand. | ||
| 9744 | * _.reject(users, 'active'); | ||
| 9745 | * // => objects for ['barney'] | ||
| 9746 | */ | ||
| 9747 |     function reject(collection, predicate) { | ||
| 9748 | var func = isArray(collection) ? arrayFilter : baseFilter; | ||
| 9749 | return func(collection, negate(getIteratee(predicate, 3))); | ||
| 9750 | } | ||
| 9751 | |||
| 9752 | /** | ||
| 9753 | * Gets a random element from `collection`. | ||
| 9754 | * | ||
| 9755 | * @static | ||
| 9756 | * @memberOf _ | ||
| 9757 | * @since 2.0.0 | ||
| 9758 | * @category Collection | ||
| 9759 |      * @param {Array|Object} collection The collection to sample. | ||
| 9760 |      * @returns {*} Returns the random element. | ||
| 9761 | * @example | ||
| 9762 | * | ||
| 9763 | * _.sample([1, 2, 3, 4]); | ||
| 9764 | * // => 2 | ||
| 9765 | */ | ||
| 9766 |     function sample(collection) { | ||
| 9767 | var func = isArray(collection) ? arraySample : baseSample; | ||
| 9768 | return func(collection); | ||
| 9769 | } | ||
| 9770 | |||
| 9771 | /** | ||
| 9772 | * Gets `n` random elements at unique keys from `collection` up to the | ||
| 9773 | * size of `collection`. | ||
| 9774 | * | ||
| 9775 | * @static | ||
| 9776 | * @memberOf _ | ||
| 9777 | * @since 4.0.0 | ||
| 9778 | * @category Collection | ||
| 9779 |      * @param {Array|Object} collection The collection to sample. | ||
| 9780 |      * @param {number} [n=1] The number of elements to sample. | ||
| 9781 |      * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. | ||
| 9782 |      * @returns {Array} Returns the random elements. | ||
| 9783 | * @example | ||
| 9784 | * | ||
| 9785 | * _.sampleSize([1, 2, 3], 2); | ||
| 9786 | * // => [3, 1] | ||
| 9787 | * | ||
| 9788 | * _.sampleSize([1, 2, 3], 4); | ||
| 9789 | * // => [2, 3, 1] | ||
| 9790 | */ | ||
| 9791 |     function sampleSize(collection, n, guard) { | ||
| 9792 |       if ((guard ? isIterateeCall(collection, n, guard) : n === undefined)) { | ||
| 9793 | n = 1; | ||
| 9794 |       } else { | ||
| 9795 | n = toInteger(n); | ||
| 9796 | } | ||
| 9797 | var func = isArray(collection) ? arraySampleSize : baseSampleSize; | ||
| 9798 | return func(collection, n); | ||
| 9799 | } | ||
| 9800 | |||
| 9801 | /** | ||
| 9802 | * Creates an array of shuffled values, using a version of the | ||
| 9803 | * [Fisher-Yates shuffle](https://en.wikipedia.org/wiki/Fisher-Yates_shuffle). | ||
| 9804 | * | ||
| 9805 | * @static | ||
| 9806 | * @memberOf _ | ||
| 9807 | * @since 0.1.0 | ||
| 9808 | * @category Collection | ||
| 9809 |      * @param {Array|Object} collection The collection to shuffle. | ||
| 9810 |      * @returns {Array} Returns the new shuffled array. | ||
| 9811 | * @example | ||
| 9812 | * | ||
| 9813 | * _.shuffle([1, 2, 3, 4]); | ||
| 9814 | * // => [4, 1, 3, 2] | ||
| 9815 | */ | ||
| 9816 |     function shuffle(collection) { | ||
| 9817 | var func = isArray(collection) ? arrayShuffle : baseShuffle; | ||
| 9818 | return func(collection); | ||
| 9819 | } | ||
| 9820 | |||
| 9821 | /** | ||
| 9822 | * Gets the size of `collection` by returning its length for array-like | ||
| 9823 | * values or the number of own enumerable string keyed properties for objects. | ||
| 9824 | * | ||
| 9825 | * @static | ||
| 9826 | * @memberOf _ | ||
| 9827 | * @since 0.1.0 | ||
| 9828 | * @category Collection | ||
| 9829 |      * @param {Array|Object|string} collection The collection to inspect. | ||
| 9830 |      * @returns {number} Returns the collection size. | ||
| 9831 | * @example | ||
| 9832 | * | ||
| 9833 | * _.size([1, 2, 3]); | ||
| 9834 | * // => 3 | ||
| 9835 | * | ||
| 9836 |      * _.size({ 'a': 1, 'b': 2 }); | ||
| 9837 | * // => 2 | ||
| 9838 | * | ||
| 9839 |      * _.size('pebbles'); | ||
| 9840 | * // => 7 | ||
| 9841 | */ | ||
| 9842 |     function size(collection) { | ||
| 9843 |       if (collection == null) { | ||
| 9844 | return 0; | ||
| 9845 | } | ||
| 9846 |       if (isArrayLike(collection)) { | ||
| 9847 | return isString(collection) ? stringSize(collection) : collection.length; | ||
| 9848 | } | ||
| 9849 | var tag = getTag(collection); | ||
| 9850 |       if (tag == mapTag || tag == setTag) { | ||
| 9851 | return collection.size; | ||
| 9852 | } | ||
| 9853 | return baseKeys(collection).length; | ||
| 9854 | } | ||
| 9855 | |||
| 9856 | /** | ||
| 9857 | * Checks if `predicate` returns truthy for **any** element of `collection`. | ||
| 9858 | * Iteration is stopped once `predicate` returns truthy. The predicate is | ||
| 9859 | * invoked with three arguments: (value, index|key, collection). | ||
| 9860 | * | ||
| 9861 | * @static | ||
| 9862 | * @memberOf _ | ||
| 9863 | * @since 0.1.0 | ||
| 9864 | * @category Collection | ||
| 9865 |      * @param {Array|Object} collection The collection to iterate over. | ||
| 9866 |      * @param {Function} [predicate=_.identity] The function invoked per iteration. | ||
| 9867 |      * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. | ||
| 9868 |      * @returns {boolean} Returns `true` if any element passes the predicate check, | ||
| 9869 | * else `false`. | ||
| 9870 | * @example | ||
| 9871 | * | ||
| 9872 | * _.some([null, 0, 'yes', false], Boolean); | ||
| 9873 | * // => true | ||
| 9874 | * | ||
| 9875 | * var users = [ | ||
| 9876 |      *   { 'user': 'barney', 'active': true }, | ||
| 9877 |      *   { 'user': 'fred',   'active': false } | ||
| 9878 | * ]; | ||
| 9879 | * | ||
| 9880 | * // The `_.matches` iteratee shorthand. | ||
| 9881 |      * _.some(users, { 'user': 'barney', 'active': false }); | ||
| 9882 | * // => false | ||
| 9883 | * | ||
| 9884 | * // The `_.matchesProperty` iteratee shorthand. | ||
| 9885 | * _.some(users, ['active', false]); | ||
| 9886 | * // => true | ||
| 9887 | * | ||
| 9888 | * // The `_.property` iteratee shorthand. | ||
| 9889 | * _.some(users, 'active'); | ||
| 9890 | * // => true | ||
| 9891 | */ | ||
| 9892 |     function some(collection, predicate, guard) { | ||
| 9893 | var func = isArray(collection) ? arraySome : baseSome; | ||
| 9894 |       if (guard && isIterateeCall(collection, predicate, guard)) { | ||
| 9895 | predicate = undefined; | ||
| 9896 | } | ||
| 9897 | return func(collection, getIteratee(predicate, 3)); | ||
| 9898 | } | ||
| 9899 | |||
| 9900 | /** | ||
| 9901 | * Creates an array of elements, sorted in ascending order by the results of | ||
| 9902 | * running each element in a collection thru each iteratee. This method | ||
| 9903 | * performs a stable sort, that is, it preserves the original sort order of | ||
| 9904 | * equal elements. The iteratees are invoked with one argument: (value). | ||
| 9905 | * | ||
| 9906 | * @static | ||
| 9907 | * @memberOf _ | ||
| 9908 | * @since 0.1.0 | ||
| 9909 | * @category Collection | ||
| 9910 |      * @param {Array|Object} collection The collection to iterate over. | ||
| 9911 |      * @param {...(Function|Function[])} [iteratees=[_.identity]] | ||
| 9912 | * The iteratees to sort by. | ||
| 9913 |      * @returns {Array} Returns the new sorted array. | ||
| 9914 | * @example | ||
| 9915 | * | ||
| 9916 | * var users = [ | ||
| 9917 |      *   { 'user': 'fred',   'age': 48 }, | ||
| 9918 |      *   { 'user': 'barney', 'age': 36 }, | ||
| 9919 |      *   { 'user': 'fred',   'age': 40 }, | ||
| 9920 |      *   { 'user': 'barney', 'age': 34 } | ||
| 9921 | * ]; | ||
| 9922 | * | ||
| 9923 |      * _.sortBy(users, [function(o) { return o.user; }]); | ||
| 9924 | * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]] | ||
| 9925 | * | ||
| 9926 | * _.sortBy(users, ['user', 'age']); | ||
| 9927 | * // => objects for [['barney', 34], ['barney', 36], ['fred', 40], ['fred', 48]] | ||
| 9928 | */ | ||
| 9929 |     var sortBy = baseRest(function(collection, iteratees) { | ||
| 9930 |       if (collection == null) { | ||
| 9931 | return []; | ||
| 9932 | } | ||
| 9933 | var length = iteratees.length; | ||
| 9934 |       if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) { | ||
| 9935 | iteratees = []; | ||
| 9936 |       } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) { | ||
| 9937 | iteratees = [iteratees[0]]; | ||
| 9938 | } | ||
| 9939 | return baseOrderBy(collection, baseFlatten(iteratees, 1), []); | ||
| 9940 | }); | ||
| 9941 | |||
| 9942 | /*------------------------------------------------------------------------*/ | ||
| 9943 | |||
| 9944 | /** | ||
| 9945 | * Gets the timestamp of the number of milliseconds that have elapsed since | ||
| 9946 | * the Unix epoch (1 January 1970 00:00:00 UTC). | ||
| 9947 | * | ||
| 9948 | * @static | ||
| 9949 | * @memberOf _ | ||
| 9950 | * @since 2.4.0 | ||
| 9951 | * @category Date | ||
| 9952 |      * @returns {number} Returns the timestamp. | ||
| 9953 | * @example | ||
| 9954 | * | ||
| 9955 |      * _.defer(function(stamp) { | ||
| 9956 | * console.log(_.now() - stamp); | ||
| 9957 | * }, _.now()); | ||
| 9958 | * // => Logs the number of milliseconds it took for the deferred invocation. | ||
| 9959 | */ | ||
| 9960 |     var now = ctxNow || function() { | ||
| 9961 | return root.Date.now(); | ||
| 9962 | }; | ||
| 9963 | |||
| 9964 | /*------------------------------------------------------------------------*/ | ||
| 9965 | |||
| 9966 | /** | ||
| 9967 | * The opposite of `_.before`; this method creates a function that invokes | ||
| 9968 | * `func` once it's called `n` or more times. | ||
| 9969 | * | ||
| 9970 | * @static | ||
| 9971 | * @memberOf _ | ||
| 9972 | * @since 0.1.0 | ||
| 9973 | * @category Function | ||
| 9974 |      * @param {number} n The number of calls before `func` is invoked. | ||
| 9975 |      * @param {Function} func The function to restrict. | ||
| 9976 |      * @returns {Function} Returns the new restricted function. | ||
| 9977 | * @example | ||
| 9978 | * | ||
| 9979 | * var saves = ['profile', 'settings']; | ||
| 9980 | * | ||
| 9981 |      * var done = _.after(saves.length, function() { | ||
| 9982 |      *   console.log('done saving!'); | ||
| 9983 | * }); | ||
| 9984 | * | ||
| 9985 |      * _.forEach(saves, function(type) { | ||
| 9986 |      *   asyncSave({ 'type': type, 'complete': done }); | ||
| 9987 | * }); | ||
| 9988 | * // => Logs 'done saving!' after the two async saves have completed. | ||
| 9989 | */ | ||
| 9990 |     function after(n, func) { | ||
| 9991 |       if (typeof func != 'function') { | ||
| 9992 | throw new TypeError(FUNC_ERROR_TEXT); | ||
| 9993 | } | ||
| 9994 | n = toInteger(n); | ||
| 9995 |       return function() { | ||
| 9996 |         if (--n < 1) { | ||
| 9997 | return func.apply(this, arguments); | ||
| 9998 | } | ||
| 9999 | }; | ||
| 10000 | } | ||
| 10001 | |||
| 10002 | /** | ||
| 10003 | * Creates a function that invokes `func`, with up to `n` arguments, | ||
| 10004 | * ignoring any additional arguments. | ||
| 10005 | * | ||
| 10006 | * @static | ||
| 10007 | * @memberOf _ | ||
| 10008 | * @since 3.0.0 | ||
| 10009 | * @category Function | ||
| 10010 |      * @param {Function} func The function to cap arguments for. | ||
| 10011 |      * @param {number} [n=func.length] The arity cap. | ||
| 10012 |      * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. | ||
| 10013 |      * @returns {Function} Returns the new capped function. | ||
| 10014 | * @example | ||
| 10015 | * | ||
| 10016 | * _.map(['6', '8', '10'], _.ary(parseInt, 1)); | ||
| 10017 | * // => [6, 8, 10] | ||
| 10018 | */ | ||
| 10019 |     function ary(func, n, guard) { | ||
| 10020 | n = guard ? undefined : n; | ||
| 10021 | n = (func && n == null) ? func.length : n; | ||
| 10022 | return createWrap(func, WRAP_ARY_FLAG, undefined, undefined, undefined, undefined, n); | ||
| 10023 | } | ||
| 10024 | |||
| 10025 | /** | ||
| 10026 | * Creates a function that invokes `func`, with the `this` binding and arguments | ||
| 10027 | * of the created function, while it's called less than `n` times. Subsequent | ||
| 10028 | * calls to the created function return the result of the last `func` invocation. | ||
| 10029 | * | ||
| 10030 | * @static | ||
| 10031 | * @memberOf _ | ||
| 10032 | * @since 3.0.0 | ||
| 10033 | * @category Function | ||
| 10034 |      * @param {number} n The number of calls at which `func` is no longer invoked. | ||
| 10035 |      * @param {Function} func The function to restrict. | ||
| 10036 |      * @returns {Function} Returns the new restricted function. | ||
| 10037 | * @example | ||
| 10038 | * | ||
| 10039 |      * jQuery(element).on('click', _.before(5, addContactToList)); | ||
| 10040 | * // => Allows adding up to 4 contacts to the list. | ||
| 10041 | */ | ||
| 10042 |     function before(n, func) { | ||
| 10043 | var result; | ||
| 10044 |       if (typeof func != 'function') { | ||
| 10045 | throw new TypeError(FUNC_ERROR_TEXT); | ||
| 10046 | } | ||
| 10047 | n = toInteger(n); | ||
| 10048 |       return function() { | ||
| 10049 |         if (--n > 0) { | ||
| 10050 | result = func.apply(this, arguments); | ||
| 10051 | } | ||
| 10052 |         if (n <= 1) { | ||
| 10053 | func = undefined; | ||
| 10054 | } | ||
| 10055 | return result; | ||
| 10056 | }; | ||
| 10057 | } | ||
| 10058 | |||
| 10059 | /** | ||
| 10060 | * Creates a function that invokes `func` with the `this` binding of `thisArg` | ||
| 10061 | * and `partials` prepended to the arguments it receives. | ||
| 10062 | * | ||
| 10063 | * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds, | ||
| 10064 | * may be used as a placeholder for partially applied arguments. | ||
| 10065 | * | ||
| 10066 | * **Note:** Unlike native `Function#bind`, this method doesn't set the "length" | ||
| 10067 | * property of bound functions. | ||
| 10068 | * | ||
| 10069 | * @static | ||
| 10070 | * @memberOf _ | ||
| 10071 | * @since 0.1.0 | ||
| 10072 | * @category Function | ||
| 10073 |      * @param {Function} func The function to bind. | ||
| 10074 |      * @param {*} thisArg The `this` binding of `func`. | ||
| 10075 |      * @param {...*} [partials] The arguments to be partially applied. | ||
| 10076 |      * @returns {Function} Returns the new bound function. | ||
| 10077 | * @example | ||
| 10078 | * | ||
| 10079 |      * function greet(greeting, punctuation) { | ||
| 10080 | * return greeting + ' ' + this.user + punctuation; | ||
| 10081 | * } | ||
| 10082 | * | ||
| 10083 |      * var object = { 'user': 'fred' }; | ||
| 10084 | * | ||
| 10085 | * var bound = _.bind(greet, object, 'hi'); | ||
| 10086 |      * bound('!'); | ||
| 10087 | * // => 'hi fred!' | ||
| 10088 | * | ||
| 10089 | * // Bound with placeholders. | ||
| 10090 | * var bound = _.bind(greet, object, _, '!'); | ||
| 10091 |      * bound('hi'); | ||
| 10092 | * // => 'hi fred!' | ||
| 10093 | */ | ||
| 10094 |     var bind = baseRest(function(func, thisArg, partials) { | ||
| 10095 | var bitmask = WRAP_BIND_FLAG; | ||
| 10096 |       if (partials.length) { | ||
| 10097 | var holders = replaceHolders(partials, getHolder(bind)); | ||
| 10098 | bitmask |= WRAP_PARTIAL_FLAG; | ||
| 10099 | } | ||
| 10100 | return createWrap(func, bitmask, thisArg, partials, holders); | ||
| 10101 | }); | ||
| 10102 | |||
| 10103 | /** | ||
| 10104 | * Creates a function that invokes the method at `object[key]` with `partials` | ||
| 10105 | * prepended to the arguments it receives. | ||
| 10106 | * | ||
| 10107 | * This method differs from `_.bind` by allowing bound functions to reference | ||
| 10108 | * methods that may be redefined or don't yet exist. See | ||
| 10109 | * [Peter Michaux's article](http://peter.michaux.ca/articles/lazy-function-definition-pattern) | ||
| 10110 | * for more details. | ||
| 10111 | * | ||
| 10112 | * The `_.bindKey.placeholder` value, which defaults to `_` in monolithic | ||
| 10113 | * builds, may be used as a placeholder for partially applied arguments. | ||
| 10114 | * | ||
| 10115 | * @static | ||
| 10116 | * @memberOf _ | ||
| 10117 | * @since 0.10.0 | ||
| 10118 | * @category Function | ||
| 10119 |      * @param {Object} object The object to invoke the method on. | ||
| 10120 |      * @param {string} key The key of the method. | ||
| 10121 |      * @param {...*} [partials] The arguments to be partially applied. | ||
| 10122 |      * @returns {Function} Returns the new bound function. | ||
| 10123 | * @example | ||
| 10124 | * | ||
| 10125 |      * var object = { | ||
| 10126 | * 'user': 'fred', | ||
| 10127 |      *   'greet': function(greeting, punctuation) { | ||
| 10128 | * return greeting + ' ' + this.user + punctuation; | ||
| 10129 | * } | ||
| 10130 | * }; | ||
| 10131 | * | ||
| 10132 | * var bound = _.bindKey(object, 'greet', 'hi'); | ||
| 10133 |      * bound('!'); | ||
| 10134 | * // => 'hi fred!' | ||
| 10135 | * | ||
| 10136 |      * object.greet = function(greeting, punctuation) { | ||
| 10137 | * return greeting + 'ya ' + this.user + punctuation; | ||
| 10138 | * }; | ||
| 10139 | * | ||
| 10140 |      * bound('!'); | ||
| 10141 | * // => 'hiya fred!' | ||
| 10142 | * | ||
| 10143 | * // Bound with placeholders. | ||
| 10144 | * var bound = _.bindKey(object, 'greet', _, '!'); | ||
| 10145 |      * bound('hi'); | ||
| 10146 | * // => 'hiya fred!' | ||
| 10147 | */ | ||
| 10148 |     var bindKey = baseRest(function(object, key, partials) { | ||
| 10149 | var bitmask = WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG; | ||
| 10150 |       if (partials.length) { | ||
| 10151 | var holders = replaceHolders(partials, getHolder(bindKey)); | ||
| 10152 | bitmask |= WRAP_PARTIAL_FLAG; | ||
| 10153 | } | ||
| 10154 | return createWrap(key, bitmask, object, partials, holders); | ||
| 10155 | }); | ||
| 10156 | |||
| 10157 | /** | ||
| 10158 | * Creates a function that accepts arguments of `func` and either invokes | ||
| 10159 | * `func` returning its result, if at least `arity` number of arguments have | ||
| 10160 | * been provided, or returns a function that accepts the remaining `func` | ||
| 10161 | * arguments, and so on. The arity of `func` may be specified if `func.length` | ||
| 10162 | * is not sufficient. | ||
| 10163 | * | ||
| 10164 | * The `_.curry.placeholder` value, which defaults to `_` in monolithic builds, | ||
| 10165 | * may be used as a placeholder for provided arguments. | ||
| 10166 | * | ||
| 10167 | * **Note:** This method doesn't set the "length" property of curried functions. | ||
| 10168 | * | ||
| 10169 | * @static | ||
| 10170 | * @memberOf _ | ||
| 10171 | * @since 2.0.0 | ||
| 10172 | * @category Function | ||
| 10173 |      * @param {Function} func The function to curry. | ||
| 10174 |      * @param {number} [arity=func.length] The arity of `func`. | ||
| 10175 |      * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. | ||
| 10176 |      * @returns {Function} Returns the new curried function. | ||
| 10177 | * @example | ||
| 10178 | * | ||
| 10179 |      * var abc = function(a, b, c) { | ||
| 10180 | * return [a, b, c]; | ||
| 10181 | * }; | ||
| 10182 | * | ||
| 10183 | * var curried = _.curry(abc); | ||
| 10184 | * | ||
| 10185 | * curried(1)(2)(3); | ||
| 10186 | * // => [1, 2, 3] | ||
| 10187 | * | ||
| 10188 | * curried(1, 2)(3); | ||
| 10189 | * // => [1, 2, 3] | ||
| 10190 | * | ||
| 10191 | * curried(1, 2, 3); | ||
| 10192 | * // => [1, 2, 3] | ||
| 10193 | * | ||
| 10194 | * // Curried with placeholders. | ||
| 10195 | * curried(1)(_, 3)(2); | ||
| 10196 | * // => [1, 2, 3] | ||
| 10197 | */ | ||
| 10198 |     function curry(func, arity, guard) { | ||
| 10199 | arity = guard ? undefined : arity; | ||
| 10200 | var result = createWrap(func, WRAP_CURRY_FLAG, undefined, undefined, undefined, undefined, undefined, arity); | ||
| 10201 | result.placeholder = curry.placeholder; | ||
| 10202 | return result; | ||
| 10203 | } | ||
| 10204 | |||
| 10205 | /** | ||
| 10206 | * This method is like `_.curry` except that arguments are applied to `func` | ||
| 10207 | * in the manner of `_.partialRight` instead of `_.partial`. | ||
| 10208 | * | ||
| 10209 | * The `_.curryRight.placeholder` value, which defaults to `_` in monolithic | ||
| 10210 | * builds, may be used as a placeholder for provided arguments. | ||
| 10211 | * | ||
| 10212 | * **Note:** This method doesn't set the "length" property of curried functions. | ||
| 10213 | * | ||
| 10214 | * @static | ||
| 10215 | * @memberOf _ | ||
| 10216 | * @since 3.0.0 | ||
| 10217 | * @category Function | ||
| 10218 |      * @param {Function} func The function to curry. | ||
| 10219 |      * @param {number} [arity=func.length] The arity of `func`. | ||
| 10220 |      * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. | ||
| 10221 |      * @returns {Function} Returns the new curried function. | ||
| 10222 | * @example | ||
| 10223 | * | ||
| 10224 |      * var abc = function(a, b, c) { | ||
| 10225 | * return [a, b, c]; | ||
| 10226 | * }; | ||
| 10227 | * | ||
| 10228 | * var curried = _.curryRight(abc); | ||
| 10229 | * | ||
| 10230 | * curried(3)(2)(1); | ||
| 10231 | * // => [1, 2, 3] | ||
| 10232 | * | ||
| 10233 | * curried(2, 3)(1); | ||
| 10234 | * // => [1, 2, 3] | ||
| 10235 | * | ||
| 10236 | * curried(1, 2, 3); | ||
| 10237 | * // => [1, 2, 3] | ||
| 10238 | * | ||
| 10239 | * // Curried with placeholders. | ||
| 10240 | * curried(3)(1, _)(2); | ||
| 10241 | * // => [1, 2, 3] | ||
| 10242 | */ | ||
| 10243 |     function curryRight(func, arity, guard) { | ||
| 10244 | arity = guard ? undefined : arity; | ||
| 10245 | var result = createWrap(func, WRAP_CURRY_RIGHT_FLAG, undefined, undefined, undefined, undefined, undefined, arity); | ||
| 10246 | result.placeholder = curryRight.placeholder; | ||
| 10247 | return result; | ||
| 10248 | } | ||
| 10249 | |||
| 10250 | /** | ||
| 10251 | * Creates a debounced function that delays invoking `func` until after `wait` | ||
| 10252 | * milliseconds have elapsed since the last time the debounced function was | ||
| 10253 | * invoked. The debounced function comes with a `cancel` method to cancel | ||
| 10254 | * delayed `func` invocations and a `flush` method to immediately invoke them. | ||
| 10255 | * Provide `options` to indicate whether `func` should be invoked on the | ||
| 10256 | * leading and/or trailing edge of the `wait` timeout. The `func` is invoked | ||
| 10257 | * with the last arguments provided to the debounced function. Subsequent | ||
| 10258 | * calls to the debounced function return the result of the last `func` | ||
| 10259 | * invocation. | ||
| 10260 | * | ||
| 10261 | * **Note:** If `leading` and `trailing` options are `true`, `func` is | ||
| 10262 | * invoked on the trailing edge of the timeout only if the debounced function | ||
| 10263 | * is invoked more than once during the `wait` timeout. | ||
| 10264 | * | ||
| 10265 | * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred | ||
| 10266 | * until to the next tick, similar to `setTimeout` with a timeout of `0`. | ||
| 10267 | * | ||
| 10268 | * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) | ||
| 10269 | * for details over the differences between `_.debounce` and `_.throttle`. | ||
| 10270 | * | ||
| 10271 | * @static | ||
| 10272 | * @memberOf _ | ||
| 10273 | * @since 0.1.0 | ||
| 10274 | * @category Function | ||
| 10275 |      * @param {Function} func The function to debounce. | ||
| 10276 |      * @param {number} [wait=0] The number of milliseconds to delay. | ||
| 10277 |      * @param {Object} [options={}] The options object. | ||
| 10278 |      * @param {boolean} [options.leading=false] | ||
| 10279 | * Specify invoking on the leading edge of the timeout. | ||
| 10280 |      * @param {number} [options.maxWait] | ||
| 10281 | * The maximum time `func` is allowed to be delayed before it's invoked. | ||
| 10282 |      * @param {boolean} [options.trailing=true] | ||
| 10283 | * Specify invoking on the trailing edge of the timeout. | ||
| 10284 |      * @returns {Function} Returns the new debounced function. | ||
| 10285 | * @example | ||
| 10286 | * | ||
| 10287 | * // Avoid costly calculations while the window size is in flux. | ||
| 10288 |      * jQuery(window).on('resize', _.debounce(calculateLayout, 150)); | ||
| 10289 | * | ||
| 10290 | * // Invoke `sendMail` when clicked, debouncing subsequent calls. | ||
| 10291 |      * jQuery(element).on('click', _.debounce(sendMail, 300, { | ||
| 10292 | * 'leading': true, | ||
| 10293 | * 'trailing': false | ||
| 10294 | * })); | ||
| 10295 | * | ||
| 10296 | * // Ensure `batchLog` is invoked once after 1 second of debounced calls. | ||
| 10297 |      * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 }); | ||
| 10298 |      * var source = new EventSource('/stream'); | ||
| 10299 |      * jQuery(source).on('message', debounced); | ||
| 10300 | * | ||
| 10301 | * // Cancel the trailing debounced invocation. | ||
| 10302 |      * jQuery(window).on('popstate', debounced.cancel); | ||
| 10303 | */ | ||
| 10304 |     function debounce(func, wait, options) { | ||
| 10305 | var lastArgs, | ||
| 10306 | lastThis, | ||
| 10307 | maxWait, | ||
| 10308 | result, | ||
| 10309 | timerId, | ||
| 10310 | lastCallTime, | ||
| 10311 | lastInvokeTime = 0, | ||
| 10312 | leading = false, | ||
| 10313 | maxing = false, | ||
| 10314 | trailing = true; | ||
| 10315 | |||
| 10316 |       if (typeof func != 'function') { | ||
| 10317 | throw new TypeError(FUNC_ERROR_TEXT); | ||
| 10318 | } | ||
| 10319 | wait = toNumber(wait) || 0; | ||
| 10320 |       if (isObject(options)) { | ||
| 10321 | leading = !!options.leading; | ||
| 10322 | maxing = 'maxWait' in options; | ||
| 10323 | maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait; | ||
| 10324 | trailing = 'trailing' in options ? !!options.trailing : trailing; | ||
| 10325 | } | ||
| 10326 | |||
| 10327 |       function invokeFunc(time) { | ||
| 10328 | var args = lastArgs, | ||
| 10329 | thisArg = lastThis; | ||
| 10330 | |||
| 10331 | lastArgs = lastThis = undefined; | ||
| 10332 | lastInvokeTime = time; | ||
| 10333 | result = func.apply(thisArg, args); | ||
| 10334 | return result; | ||
| 10335 | } | ||
| 10336 | |||
| 10337 |       function leadingEdge(time) { | ||
| 10338 | // Reset any `maxWait` timer. | ||
| 10339 | lastInvokeTime = time; | ||
| 10340 | // Start the timer for the trailing edge. | ||
| 10341 | timerId = setTimeout(timerExpired, wait); | ||
| 10342 | // Invoke the leading edge. | ||
| 10343 | return leading ? invokeFunc(time) : result; | ||
| 10344 | } | ||
| 10345 | |||
| 10346 |       function remainingWait(time) { | ||
| 10347 | var timeSinceLastCall = time - lastCallTime, | ||
| 10348 | timeSinceLastInvoke = time - lastInvokeTime, | ||
| 10349 | timeWaiting = wait - timeSinceLastCall; | ||
| 10350 | |||
| 10351 | return maxing | ||
| 10352 | ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke) | ||
| 10353 | : timeWaiting; | ||
| 10354 | } | ||
| 10355 | |||
| 10356 |       function shouldInvoke(time) { | ||
| 10357 | var timeSinceLastCall = time - lastCallTime, | ||
| 10358 | timeSinceLastInvoke = time - lastInvokeTime; | ||
| 10359 | |||
| 10360 | // Either this is the first call, activity has stopped and we're at the | ||
| 10361 | // trailing edge, the system time has gone backwards and we're treating | ||
| 10362 | // it as the trailing edge, or we've hit the `maxWait` limit. | ||
| 10363 | return (lastCallTime === undefined || (timeSinceLastCall >= wait) || | ||
| 10364 | (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait)); | ||
| 10365 | } | ||
| 10366 | |||
| 10367 |       function timerExpired() { | ||
| 10368 | var time = now(); | ||
| 10369 |         if (shouldInvoke(time)) { | ||
| 10370 | return trailingEdge(time); | ||
| 10371 | } | ||
| 10372 | // Restart the timer. | ||
| 10373 | timerId = setTimeout(timerExpired, remainingWait(time)); | ||
| 10374 | } | ||
| 10375 | |||
| 10376 |       function trailingEdge(time) { | ||
| 10377 | timerId = undefined; | ||
| 10378 | |||
| 10379 | // Only invoke if we have `lastArgs` which means `func` has been | ||
| 10380 | // debounced at least once. | ||
| 10381 |         if (trailing && lastArgs) { | ||
| 10382 | return invokeFunc(time); | ||
| 10383 | } | ||
| 10384 | lastArgs = lastThis = undefined; | ||
| 10385 | return result; | ||
| 10386 | } | ||
| 10387 | |||
| 10388 |       function cancel() { | ||
| 10389 |         if (timerId !== undefined) { | ||
| 10390 | clearTimeout(timerId); | ||
| 10391 | } | ||
| 10392 | lastInvokeTime = 0; | ||
| 10393 | lastArgs = lastCallTime = lastThis = timerId = undefined; | ||
| 10394 | } | ||
| 10395 | |||
| 10396 |       function flush() { | ||
| 10397 | return timerId === undefined ? result : trailingEdge(now()); | ||
| 10398 | } | ||
| 10399 | |||
| 10400 |       function debounced() { | ||
| 10401 | var time = now(), | ||
| 10402 | isInvoking = shouldInvoke(time); | ||
| 10403 | |||
| 10404 | lastArgs = arguments; | ||
| 10405 | lastThis = this; | ||
| 10406 | lastCallTime = time; | ||
| 10407 | |||
| 10408 |         if (isInvoking) { | ||
| 10409 |           if (timerId === undefined) { | ||
| 10410 | return leadingEdge(lastCallTime); | ||
| 10411 | } | ||
| 10412 |           if (maxing) { | ||
| 10413 | // Handle invocations in a tight loop. | ||
| 10414 | clearTimeout(timerId); | ||
| 10415 | timerId = setTimeout(timerExpired, wait); | ||
| 10416 | return invokeFunc(lastCallTime); | ||
| 10417 | } | ||
| 10418 | } | ||
| 10419 |         if (timerId === undefined) { | ||
| 10420 | timerId = setTimeout(timerExpired, wait); | ||
| 10421 | } | ||
| 10422 | return result; | ||
| 10423 | } | ||
| 10424 | debounced.cancel = cancel; | ||
| 10425 | debounced.flush = flush; | ||
| 10426 | return debounced; | ||
| 10427 | } | ||
| 10428 | |||
| 10429 | /** | ||
| 10430 | * Defers invoking the `func` until the current call stack has cleared. Any | ||
| 10431 | * additional arguments are provided to `func` when it's invoked. | ||
| 10432 | * | ||
| 10433 | * @static | ||
| 10434 | * @memberOf _ | ||
| 10435 | * @since 0.1.0 | ||
| 10436 | * @category Function | ||
| 10437 |      * @param {Function} func The function to defer. | ||
| 10438 |      * @param {...*} [args] The arguments to invoke `func` with. | ||
| 10439 |      * @returns {number} Returns the timer id. | ||
| 10440 | * @example | ||
| 10441 | * | ||
| 10442 |      * _.defer(function(text) { | ||
| 10443 | * console.log(text); | ||
| 10444 | * }, 'deferred'); | ||
| 10445 | * // => Logs 'deferred' after one millisecond. | ||
| 10446 | */ | ||
| 10447 |     var defer = baseRest(function(func, args) { | ||
| 10448 | return baseDelay(func, 1, args); | ||
| 10449 | }); | ||
| 10450 | |||
| 10451 | /** | ||
| 10452 | * Invokes `func` after `wait` milliseconds. Any additional arguments are | ||
| 10453 | * provided to `func` when it's invoked. | ||
| 10454 | * | ||
| 10455 | * @static | ||
| 10456 | * @memberOf _ | ||
| 10457 | * @since 0.1.0 | ||
| 10458 | * @category Function | ||
| 10459 |      * @param {Function} func The function to delay. | ||
| 10460 |      * @param {number} wait The number of milliseconds to delay invocation. | ||
| 10461 |      * @param {...*} [args] The arguments to invoke `func` with. | ||
| 10462 |      * @returns {number} Returns the timer id. | ||
| 10463 | * @example | ||
| 10464 | * | ||
| 10465 |      * _.delay(function(text) { | ||
| 10466 | * console.log(text); | ||
| 10467 | * }, 1000, 'later'); | ||
| 10468 | * // => Logs 'later' after one second. | ||
| 10469 | */ | ||
| 10470 |     var delay = baseRest(function(func, wait, args) { | ||
| 10471 | return baseDelay(func, toNumber(wait) || 0, args); | ||
| 10472 | }); | ||
| 10473 | |||
| 10474 | /** | ||
| 10475 | * Creates a function that invokes `func` with arguments reversed. | ||
| 10476 | * | ||
| 10477 | * @static | ||
| 10478 | * @memberOf _ | ||
| 10479 | * @since 4.0.0 | ||
| 10480 | * @category Function | ||
| 10481 |      * @param {Function} func The function to flip arguments for. | ||
| 10482 |      * @returns {Function} Returns the new flipped function. | ||
| 10483 | * @example | ||
| 10484 | * | ||
| 10485 |      * var flipped = _.flip(function() { | ||
| 10486 | * return _.toArray(arguments); | ||
| 10487 | * }); | ||
| 10488 | * | ||
| 10489 |      * flipped('a', 'b', 'c', 'd'); | ||
| 10490 | * // => ['d', 'c', 'b', 'a'] | ||
| 10491 | */ | ||
| 10492 |     function flip(func) { | ||
| 10493 | return createWrap(func, WRAP_FLIP_FLAG); | ||
| 10494 | } | ||
| 10495 | |||
| 10496 | /** | ||
| 10497 | * Creates a function that memoizes the result of `func`. If `resolver` is | ||
| 10498 | * provided, it determines the cache key for storing the result based on the | ||
| 10499 | * arguments provided to the memoized function. By default, the first argument | ||
| 10500 | * provided to the memoized function is used as the map cache key. The `func` | ||
| 10501 | * is invoked with the `this` binding of the memoized function. | ||
| 10502 | * | ||
| 10503 | * **Note:** The cache is exposed as the `cache` property on the memoized | ||
| 10504 | * function. Its creation may be customized by replacing the `_.memoize.Cache` | ||
| 10505 | * constructor with one whose instances implement the | ||
| 10506 | * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object) | ||
| 10507 | * method interface of `clear`, `delete`, `get`, `has`, and `set`. | ||
| 10508 | * | ||
| 10509 | * @static | ||
| 10510 | * @memberOf _ | ||
| 10511 | * @since 0.1.0 | ||
| 10512 | * @category Function | ||
| 10513 |      * @param {Function} func The function to have its output memoized. | ||
| 10514 |      * @param {Function} [resolver] The function to resolve the cache key. | ||
| 10515 |      * @returns {Function} Returns the new memoized function. | ||
| 10516 | * @example | ||
| 10517 | * | ||
| 10518 |      * var object = { 'a': 1, 'b': 2 }; | ||
| 10519 |      * var other = { 'c': 3, 'd': 4 }; | ||
| 10520 | * | ||
| 10521 | * var values = _.memoize(_.values); | ||
| 10522 | * values(object); | ||
| 10523 | * // => [1, 2] | ||
| 10524 | * | ||
| 10525 | * values(other); | ||
| 10526 | * // => [3, 4] | ||
| 10527 | * | ||
| 10528 | * object.a = 2; | ||
| 10529 | * values(object); | ||
| 10530 | * // => [1, 2] | ||
| 10531 | * | ||
| 10532 | * // Modify the result cache. | ||
| 10533 | * values.cache.set(object, ['a', 'b']); | ||
| 10534 | * values(object); | ||
| 10535 | * // => ['a', 'b'] | ||
| 10536 | * | ||
| 10537 | * // Replace `_.memoize.Cache`. | ||
| 10538 | * _.memoize.Cache = WeakMap; | ||
| 10539 | */ | ||
| 10540 |     function memoize(func, resolver) { | ||
| 10541 |       if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) { | ||
| 10542 | throw new TypeError(FUNC_ERROR_TEXT); | ||
| 10543 | } | ||
| 10544 |       var memoized = function() { | ||
| 10545 | var args = arguments, | ||
| 10546 | key = resolver ? resolver.apply(this, args) : args[0], | ||
| 10547 | cache = memoized.cache; | ||
| 10548 | |||
| 10549 |         if (cache.has(key)) { | ||
| 10550 | return cache.get(key); | ||
| 10551 | } | ||
| 10552 | var result = func.apply(this, args); | ||
| 10553 | memoized.cache = cache.set(key, result) || cache; | ||
| 10554 | return result; | ||
| 10555 | }; | ||
| 10556 | memoized.cache = new (memoize.Cache || MapCache); | ||
| 10557 | return memoized; | ||
| 10558 | } | ||
| 10559 | |||
| 10560 | // Expose `MapCache`. | ||
| 10561 | memoize.Cache = MapCache; | ||
| 10562 | |||
| 10563 | /** | ||
| 10564 | * Creates a function that negates the result of the predicate `func`. The | ||
| 10565 | * `func` predicate is invoked with the `this` binding and arguments of the | ||
| 10566 | * created function. | ||
| 10567 | * | ||
| 10568 | * @static | ||
| 10569 | * @memberOf _ | ||
| 10570 | * @since 3.0.0 | ||
| 10571 | * @category Function | ||
| 10572 |      * @param {Function} predicate The predicate to negate. | ||
| 10573 |      * @returns {Function} Returns the new negated function. | ||
| 10574 | * @example | ||
| 10575 | * | ||
| 10576 |      * function isEven(n) { | ||
| 10577 | * return n % 2 == 0; | ||
| 10578 | * } | ||
| 10579 | * | ||
| 10580 | * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven)); | ||
| 10581 | * // => [1, 3, 5] | ||
| 10582 | */ | ||
| 10583 |     function negate(predicate) { | ||
| 10584 |       if (typeof predicate != 'function') { | ||
| 10585 | throw new TypeError(FUNC_ERROR_TEXT); | ||
| 10586 | } | ||
| 10587 |       return function() { | ||
| 10588 | var args = arguments; | ||
| 10589 |         switch (args.length) { | ||
| 10590 | case 0: return !predicate.call(this); | ||
| 10591 | case 1: return !predicate.call(this, args[0]); | ||
| 10592 | case 2: return !predicate.call(this, args[0], args[1]); | ||
| 10593 | case 3: return !predicate.call(this, args[0], args[1], args[2]); | ||
| 10594 | } | ||
| 10595 | return !predicate.apply(this, args); | ||
| 10596 | }; | ||
| 10597 | } | ||
| 10598 | |||
| 10599 | /** | ||
| 10600 | * Creates a function that is restricted to invoking `func` once. Repeat calls | ||
| 10601 | * to the function return the value of the first invocation. The `func` is | ||
| 10602 | * invoked with the `this` binding and arguments of the created function. | ||
| 10603 | * | ||
| 10604 | * @static | ||
| 10605 | * @memberOf _ | ||
| 10606 | * @since 0.1.0 | ||
| 10607 | * @category Function | ||
| 10608 |      * @param {Function} func The function to restrict. | ||
| 10609 |      * @returns {Function} Returns the new restricted function. | ||
| 10610 | * @example | ||
| 10611 | * | ||
| 10612 | * var initialize = _.once(createApplication); | ||
| 10613 | * initialize(); | ||
| 10614 | * initialize(); | ||
| 10615 | * // => `createApplication` is invoked once | ||
| 10616 | */ | ||
| 10617 |     function once(func) { | ||
| 10618 | return before(2, func); | ||
| 10619 | } | ||
| 10620 | |||
| 10621 | /** | ||
| 10622 | * Creates a function that invokes `func` with its arguments transformed. | ||
| 10623 | * | ||
| 10624 | * @static | ||
| 10625 | * @since 4.0.0 | ||
| 10626 | * @memberOf _ | ||
| 10627 | * @category Function | ||
| 10628 |      * @param {Function} func The function to wrap. | ||
| 10629 |      * @param {...(Function|Function[])} [transforms=[_.identity]] | ||
| 10630 | * The argument transforms. | ||
| 10631 |      * @returns {Function} Returns the new function. | ||
| 10632 | * @example | ||
| 10633 | * | ||
| 10634 |      * function doubled(n) { | ||
| 10635 | * return n * 2; | ||
| 10636 | * } | ||
| 10637 | * | ||
| 10638 |      * function square(n) { | ||
| 10639 | * return n * n; | ||
| 10640 | * } | ||
| 10641 | * | ||
| 10642 |      * var func = _.overArgs(function(x, y) { | ||
| 10643 | * return [x, y]; | ||
| 10644 | * }, [square, doubled]); | ||
| 10645 | * | ||
| 10646 | * func(9, 3); | ||
| 10647 | * // => [81, 6] | ||
| 10648 | * | ||
| 10649 | * func(10, 5); | ||
| 10650 | * // => [100, 10] | ||
| 10651 | */ | ||
| 10652 |     var overArgs = castRest(function(func, transforms) { | ||
| 10653 | transforms = (transforms.length == 1 && isArray(transforms[0])) | ||
| 10654 | ? arrayMap(transforms[0], baseUnary(getIteratee())) | ||
| 10655 | : arrayMap(baseFlatten(transforms, 1), baseUnary(getIteratee())); | ||
| 10656 | |||
| 10657 | var funcsLength = transforms.length; | ||
| 10658 |       return baseRest(function(args) { | ||
| 10659 | var index = -1, | ||
| 10660 | length = nativeMin(args.length, funcsLength); | ||
| 10661 | |||
| 10662 |         while (++index < length) { | ||
| 10663 | args[index] = transforms[index].call(this, args[index]); | ||
| 10664 | } | ||
| 10665 | return apply(func, this, args); | ||
| 10666 | }); | ||
| 10667 | }); | ||
| 10668 | |||
| 10669 | /** | ||
| 10670 | * Creates a function that invokes `func` with `partials` prepended to the | ||
| 10671 | * arguments it receives. This method is like `_.bind` except it does **not** | ||
| 10672 | * alter the `this` binding. | ||
| 10673 | * | ||
| 10674 | * The `_.partial.placeholder` value, which defaults to `_` in monolithic | ||
| 10675 | * builds, may be used as a placeholder for partially applied arguments. | ||
| 10676 | * | ||
| 10677 | * **Note:** This method doesn't set the "length" property of partially | ||
| 10678 | * applied functions. | ||
| 10679 | * | ||
| 10680 | * @static | ||
| 10681 | * @memberOf _ | ||
| 10682 | * @since 0.2.0 | ||
| 10683 | * @category Function | ||
| 10684 |      * @param {Function} func The function to partially apply arguments to. | ||
| 10685 |      * @param {...*} [partials] The arguments to be partially applied. | ||
| 10686 |      * @returns {Function} Returns the new partially applied function. | ||
| 10687 | * @example | ||
| 10688 | * | ||
| 10689 |      * function greet(greeting, name) { | ||
| 10690 | * return greeting + ' ' + name; | ||
| 10691 | * } | ||
| 10692 | * | ||
| 10693 | * var sayHelloTo = _.partial(greet, 'hello'); | ||
| 10694 |      * sayHelloTo('fred'); | ||
| 10695 | * // => 'hello fred' | ||
| 10696 | * | ||
| 10697 | * // Partially applied with placeholders. | ||
| 10698 | * var greetFred = _.partial(greet, _, 'fred'); | ||
| 10699 |      * greetFred('hi'); | ||
| 10700 | * // => 'hi fred' | ||
| 10701 | */ | ||
| 10702 |     var partial = baseRest(function(func, partials) { | ||
| 10703 | var holders = replaceHolders(partials, getHolder(partial)); | ||
| 10704 | return createWrap(func, WRAP_PARTIAL_FLAG, undefined, partials, holders); | ||
| 10705 | }); | ||
| 10706 | |||
| 10707 | /** | ||
| 10708 | * This method is like `_.partial` except that partially applied arguments | ||
| 10709 | * are appended to the arguments it receives. | ||
| 10710 | * | ||
| 10711 | * The `_.partialRight.placeholder` value, which defaults to `_` in monolithic | ||
| 10712 | * builds, may be used as a placeholder for partially applied arguments. | ||
| 10713 | * | ||
| 10714 | * **Note:** This method doesn't set the "length" property of partially | ||
| 10715 | * applied functions. | ||
| 10716 | * | ||
| 10717 | * @static | ||
| 10718 | * @memberOf _ | ||
| 10719 | * @since 1.0.0 | ||
| 10720 | * @category Function | ||
| 10721 |      * @param {Function} func The function to partially apply arguments to. | ||
| 10722 |      * @param {...*} [partials] The arguments to be partially applied. | ||
| 10723 |      * @returns {Function} Returns the new partially applied function. | ||
| 10724 | * @example | ||
| 10725 | * | ||
| 10726 |      * function greet(greeting, name) { | ||
| 10727 | * return greeting + ' ' + name; | ||
| 10728 | * } | ||
| 10729 | * | ||
| 10730 | * var greetFred = _.partialRight(greet, 'fred'); | ||
| 10731 |      * greetFred('hi'); | ||
| 10732 | * // => 'hi fred' | ||
| 10733 | * | ||
| 10734 | * // Partially applied with placeholders. | ||
| 10735 | * var sayHelloTo = _.partialRight(greet, 'hello', _); | ||
| 10736 |      * sayHelloTo('fred'); | ||
| 10737 | * // => 'hello fred' | ||
| 10738 | */ | ||
| 10739 |     var partialRight = baseRest(function(func, partials) { | ||
| 10740 | var holders = replaceHolders(partials, getHolder(partialRight)); | ||
| 10741 | return createWrap(func, WRAP_PARTIAL_RIGHT_FLAG, undefined, partials, holders); | ||
| 10742 | }); | ||
| 10743 | |||
| 10744 | /** | ||
| 10745 | * Creates a function that invokes `func` with arguments arranged according | ||
| 10746 | * to the specified `indexes` where the argument value at the first index is | ||
| 10747 | * provided as the first argument, the argument value at the second index is | ||
| 10748 | * provided as the second argument, and so on. | ||
| 10749 | * | ||
| 10750 | * @static | ||
| 10751 | * @memberOf _ | ||
| 10752 | * @since 3.0.0 | ||
| 10753 | * @category Function | ||
| 10754 |      * @param {Function} func The function to rearrange arguments for. | ||
| 10755 |      * @param {...(number|number[])} indexes The arranged argument indexes. | ||
| 10756 |      * @returns {Function} Returns the new function. | ||
| 10757 | * @example | ||
| 10758 | * | ||
| 10759 |      * var rearged = _.rearg(function(a, b, c) { | ||
| 10760 | * return [a, b, c]; | ||
| 10761 | * }, [2, 0, 1]); | ||
| 10762 | * | ||
| 10763 |      * rearged('b', 'c', 'a') | ||
| 10764 | * // => ['a', 'b', 'c'] | ||
| 10765 | */ | ||
| 10766 |     var rearg = flatRest(function(func, indexes) { | ||
| 10767 | return createWrap(func, WRAP_REARG_FLAG, undefined, undefined, undefined, indexes); | ||
| 10768 | }); | ||
| 10769 | |||
| 10770 | /** | ||
| 10771 | * Creates a function that invokes `func` with the `this` binding of the | ||
| 10772 | * created function and arguments from `start` and beyond provided as | ||
| 10773 | * an array. | ||
| 10774 | * | ||
| 10775 | * **Note:** This method is based on the | ||
| 10776 | * [rest parameter](https://mdn.io/rest_parameters). | ||
| 10777 | * | ||
| 10778 | * @static | ||
| 10779 | * @memberOf _ | ||
| 10780 | * @since 4.0.0 | ||
| 10781 | * @category Function | ||
| 10782 |      * @param {Function} func The function to apply a rest parameter to. | ||
| 10783 |      * @param {number} [start=func.length-1] The start position of the rest parameter. | ||
| 10784 |      * @returns {Function} Returns the new function. | ||
| 10785 | * @example | ||
| 10786 | * | ||
| 10787 |      * var say = _.rest(function(what, names) { | ||
| 10788 |      *   return what + ' ' + _.initial(names).join(', ') + | ||
| 10789 | * (_.size(names) > 1 ? ', & ' : '') + _.last(names); | ||
| 10790 | * }); | ||
| 10791 | * | ||
| 10792 |      * say('hello', 'fred', 'barney', 'pebbles'); | ||
| 10793 | * // => 'hello fred, barney, & pebbles' | ||
| 10794 | */ | ||
| 10795 |     function rest(func, start) { | ||
| 10796 |       if (typeof func != 'function') { | ||
| 10797 | throw new TypeError(FUNC_ERROR_TEXT); | ||
| 10798 | } | ||
| 10799 | start = start === undefined ? start : toInteger(start); | ||
| 10800 | return baseRest(func, start); | ||
| 10801 | } | ||
| 10802 | |||
| 10803 | /** | ||
| 10804 | * Creates a function that invokes `func` with the `this` binding of the | ||
| 10805 | * create function and an array of arguments much like | ||
| 10806 | * [`Function#apply`](http://www.ecma-international.org/ecma-262/7.0/#sec-function.prototype.apply). | ||
| 10807 | * | ||
| 10808 | * **Note:** This method is based on the | ||
| 10809 | * [spread operator](https://mdn.io/spread_operator). | ||
| 10810 | * | ||
| 10811 | * @static | ||
| 10812 | * @memberOf _ | ||
| 10813 | * @since 3.2.0 | ||
| 10814 | * @category Function | ||
| 10815 |      * @param {Function} func The function to spread arguments over. | ||
| 10816 |      * @param {number} [start=0] The start position of the spread. | ||
| 10817 |      * @returns {Function} Returns the new function. | ||
| 10818 | * @example | ||
| 10819 | * | ||
| 10820 |      * var say = _.spread(function(who, what) { | ||
| 10821 | * return who + ' says ' + what; | ||
| 10822 | * }); | ||
| 10823 | * | ||
| 10824 | * say(['fred', 'hello']); | ||
| 10825 | * // => 'fred says hello' | ||
| 10826 | * | ||
| 10827 | * var numbers = Promise.all([ | ||
| 10828 | * Promise.resolve(40), | ||
| 10829 | * Promise.resolve(36) | ||
| 10830 | * ]); | ||
| 10831 | * | ||
| 10832 |      * numbers.then(_.spread(function(x, y) { | ||
| 10833 | * return x + y; | ||
| 10834 | * })); | ||
| 10835 | * // => a Promise of 76 | ||
| 10836 | */ | ||
| 10837 |     function spread(func, start) { | ||
| 10838 |       if (typeof func != 'function') { | ||
| 10839 | throw new TypeError(FUNC_ERROR_TEXT); | ||
| 10840 | } | ||
| 10841 | start = start == null ? 0 : nativeMax(toInteger(start), 0); | ||
| 10842 |       return baseRest(function(args) { | ||
| 10843 | var array = args[start], | ||
| 10844 | otherArgs = castSlice(args, 0, start); | ||
| 10845 | |||
| 10846 |         if (array) { | ||
| 10847 | arrayPush(otherArgs, array); | ||
| 10848 | } | ||
| 10849 | return apply(func, this, otherArgs); | ||
| 10850 | }); | ||
| 10851 | } | ||
| 10852 | |||
| 10853 | /** | ||
| 10854 | * Creates a throttled function that only invokes `func` at most once per | ||
| 10855 | * every `wait` milliseconds. The throttled function comes with a `cancel` | ||
| 10856 | * method to cancel delayed `func` invocations and a `flush` method to | ||
| 10857 | * immediately invoke them. Provide `options` to indicate whether `func` | ||
| 10858 | * should be invoked on the leading and/or trailing edge of the `wait` | ||
| 10859 | * timeout. The `func` is invoked with the last arguments provided to the | ||
| 10860 | * throttled function. Subsequent calls to the throttled function return the | ||
| 10861 | * result of the last `func` invocation. | ||
| 10862 | * | ||
| 10863 | * **Note:** If `leading` and `trailing` options are `true`, `func` is | ||
| 10864 | * invoked on the trailing edge of the timeout only if the throttled function | ||
| 10865 | * is invoked more than once during the `wait` timeout. | ||
| 10866 | * | ||
| 10867 | * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred | ||
| 10868 | * until to the next tick, similar to `setTimeout` with a timeout of `0`. | ||
| 10869 | * | ||
| 10870 | * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) | ||
| 10871 | * for details over the differences between `_.throttle` and `_.debounce`. | ||
| 10872 | * | ||
| 10873 | * @static | ||
| 10874 | * @memberOf _ | ||
| 10875 | * @since 0.1.0 | ||
| 10876 | * @category Function | ||
| 10877 |      * @param {Function} func The function to throttle. | ||
| 10878 |      * @param {number} [wait=0] The number of milliseconds to throttle invocations to. | ||
| 10879 |      * @param {Object} [options={}] The options object. | ||
| 10880 |      * @param {boolean} [options.leading=true] | ||
| 10881 | * Specify invoking on the leading edge of the timeout. | ||
| 10882 |      * @param {boolean} [options.trailing=true] | ||
| 10883 | * Specify invoking on the trailing edge of the timeout. | ||
| 10884 |      * @returns {Function} Returns the new throttled function. | ||
| 10885 | * @example | ||
| 10886 | * | ||
| 10887 | * // Avoid excessively updating the position while scrolling. | ||
| 10888 |      * jQuery(window).on('scroll', _.throttle(updatePosition, 100)); | ||
| 10889 | * | ||
| 10890 | * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes. | ||
| 10891 |      * var throttled = _.throttle(renewToken, 300000, { 'trailing': false }); | ||
| 10892 |      * jQuery(element).on('click', throttled); | ||
| 10893 | * | ||
| 10894 | * // Cancel the trailing throttled invocation. | ||
| 10895 |      * jQuery(window).on('popstate', throttled.cancel); | ||
| 10896 | */ | ||
| 10897 |     function throttle(func, wait, options) { | ||
| 10898 | var leading = true, | ||
| 10899 | trailing = true; | ||
| 10900 | |||
| 10901 |       if (typeof func != 'function') { | ||
| 10902 | throw new TypeError(FUNC_ERROR_TEXT); | ||
| 10903 | } | ||
| 10904 |       if (isObject(options)) { | ||
| 10905 | leading = 'leading' in options ? !!options.leading : leading; | ||
| 10906 | trailing = 'trailing' in options ? !!options.trailing : trailing; | ||
| 10907 | } | ||
| 10908 |       return debounce(func, wait, { | ||
| 10909 | 'leading': leading, | ||
| 10910 | 'maxWait': wait, | ||
| 10911 | 'trailing': trailing | ||
| 10912 | }); | ||
| 10913 | } | ||
| 10914 | |||
| 10915 | /** | ||
| 10916 | * Creates a function that accepts up to one argument, ignoring any | ||
| 10917 | * additional arguments. | ||
| 10918 | * | ||
| 10919 | * @static | ||
| 10920 | * @memberOf _ | ||
| 10921 | * @since 4.0.0 | ||
| 10922 | * @category Function | ||
| 10923 |      * @param {Function} func The function to cap arguments for. | ||
| 10924 |      * @returns {Function} Returns the new capped function. | ||
| 10925 | * @example | ||
| 10926 | * | ||
| 10927 | * _.map(['6', '8', '10'], _.unary(parseInt)); | ||
| 10928 | * // => [6, 8, 10] | ||
| 10929 | */ | ||
| 10930 |     function unary(func) { | ||
| 10931 | return ary(func, 1); | ||
| 10932 | } | ||
| 10933 | |||
| 10934 | /** | ||
| 10935 | * Creates a function that provides `value` to `wrapper` as its first | ||
| 10936 | * argument. Any additional arguments provided to the function are appended | ||
| 10937 | * to those provided to the `wrapper`. The wrapper is invoked with the `this` | ||
| 10938 | * binding of the created function. | ||
| 10939 | * | ||
| 10940 | * @static | ||
| 10941 | * @memberOf _ | ||
| 10942 | * @since 0.1.0 | ||
| 10943 | * @category Function | ||
| 10944 |      * @param {*} value The value to wrap. | ||
| 10945 |      * @param {Function} [wrapper=identity] The wrapper function. | ||
| 10946 |      * @returns {Function} Returns the new function. | ||
| 10947 | * @example | ||
| 10948 | * | ||
| 10949 |      * var p = _.wrap(_.escape, function(func, text) { | ||
| 10950 | * return '<p>' + func(text) + '</p>'; | ||
| 10951 | * }); | ||
| 10952 | * | ||
| 10953 |      * p('fred, barney, & pebbles'); | ||
| 10954 | * // => '<p>fred, barney, & pebbles</p>' | ||
| 10955 | */ | ||
| 10956 |     function wrap(value, wrapper) { | ||
| 10957 | return partial(castFunction(wrapper), value); | ||
| 10958 | } | ||
| 10959 | |||
| 10960 | /*------------------------------------------------------------------------*/ | ||
| 10961 | |||
| 10962 | /** | ||
| 10963 | * Casts `value` as an array if it's not one. | ||
| 10964 | * | ||
| 10965 | * @static | ||
| 10966 | * @memberOf _ | ||
| 10967 | * @since 4.4.0 | ||
| 10968 | * @category Lang | ||
| 10969 |      * @param {*} value The value to inspect. | ||
| 10970 |      * @returns {Array} Returns the cast array. | ||
| 10971 | * @example | ||
| 10972 | * | ||
| 10973 | * _.castArray(1); | ||
| 10974 | * // => [1] | ||
| 10975 | * | ||
| 10976 |      * _.castArray({ 'a': 1 }); | ||
| 10977 |      * // => [{ 'a': 1 }] | ||
| 10978 | * | ||
| 10979 |      * _.castArray('abc'); | ||
| 10980 | * // => ['abc'] | ||
| 10981 | * | ||
| 10982 | * _.castArray(null); | ||
| 10983 | * // => [null] | ||
| 10984 | * | ||
| 10985 | * _.castArray(undefined); | ||
| 10986 | * // => [undefined] | ||
| 10987 | * | ||
| 10988 | * _.castArray(); | ||
| 10989 | * // => [] | ||
| 10990 | * | ||
| 10991 | * var array = [1, 2, 3]; | ||
| 10992 | * console.log(_.castArray(array) === array); | ||
| 10993 | * // => true | ||
| 10994 | */ | ||
| 10995 |     function castArray() { | ||
| 10996 |       if (!arguments.length) { | ||
| 10997 | return []; | ||
| 10998 | } | ||
| 10999 | var value = arguments[0]; | ||
| 11000 | return isArray(value) ? value : [value]; | ||
| 11001 | } | ||
| 11002 | |||
| 11003 | /** | ||
| 11004 | * Creates a shallow clone of `value`. | ||
| 11005 | * | ||
| 11006 | * **Note:** This method is loosely based on the | ||
| 11007 | * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm) | ||
| 11008 | * and supports cloning arrays, array buffers, booleans, date objects, maps, | ||
| 11009 | * numbers, `Object` objects, regexes, sets, strings, symbols, and typed | ||
| 11010 | * arrays. The own enumerable properties of `arguments` objects are cloned | ||
| 11011 | * as plain objects. An empty object is returned for uncloneable values such | ||
| 11012 | * as error objects, functions, DOM nodes, and WeakMaps. | ||
| 11013 | * | ||
| 11014 | * @static | ||
| 11015 | * @memberOf _ | ||
| 11016 | * @since 0.1.0 | ||
| 11017 | * @category Lang | ||
| 11018 |      * @param {*} value The value to clone. | ||
| 11019 |      * @returns {*} Returns the cloned value. | ||
| 11020 | * @see _.cloneDeep | ||
| 11021 | * @example | ||
| 11022 | * | ||
| 11023 |      * var objects = [{ 'a': 1 }, { 'b': 2 }]; | ||
| 11024 | * | ||
| 11025 | * var shallow = _.clone(objects); | ||
| 11026 | * console.log(shallow[0] === objects[0]); | ||
| 11027 | * // => true | ||
| 11028 | */ | ||
| 11029 |     function clone(value) { | ||
| 11030 | return baseClone(value, CLONE_SYMBOLS_FLAG); | ||
| 11031 | } | ||
| 11032 | |||
| 11033 | /** | ||
| 11034 | * This method is like `_.clone` except that it accepts `customizer` which | ||
| 11035 | * is invoked to produce the cloned value. If `customizer` returns `undefined`, | ||
| 11036 | * cloning is handled by the method instead. The `customizer` is invoked with | ||
| 11037 | * up to four arguments; (value [, index|key, object, stack]). | ||
| 11038 | * | ||
| 11039 | * @static | ||
| 11040 | * @memberOf _ | ||
| 11041 | * @since 4.0.0 | ||
| 11042 | * @category Lang | ||
| 11043 |      * @param {*} value The value to clone. | ||
| 11044 |      * @param {Function} [customizer] The function to customize cloning. | ||
| 11045 |      * @returns {*} Returns the cloned value. | ||
| 11046 | * @see _.cloneDeepWith | ||
| 11047 | * @example | ||
| 11048 | * | ||
| 11049 |      * function customizer(value) { | ||
| 11050 |      *   if (_.isElement(value)) { | ||
| 11051 | * return value.cloneNode(false); | ||
| 11052 | * } | ||
| 11053 | * } | ||
| 11054 | * | ||
| 11055 | * var el = _.cloneWith(document.body, customizer); | ||
| 11056 | * | ||
| 11057 | * console.log(el === document.body); | ||
| 11058 | * // => false | ||
| 11059 | * console.log(el.nodeName); | ||
| 11060 | * // => 'BODY' | ||
| 11061 | * console.log(el.childNodes.length); | ||
| 11062 | * // => 0 | ||
| 11063 | */ | ||
| 11064 |     function cloneWith(value, customizer) { | ||
| 11065 | customizer = typeof customizer == 'function' ? customizer : undefined; | ||
| 11066 | return baseClone(value, CLONE_SYMBOLS_FLAG, customizer); | ||
| 11067 | } | ||
| 11068 | |||
| 11069 | /** | ||
| 11070 | * This method is like `_.clone` except that it recursively clones `value`. | ||
| 11071 | * | ||
| 11072 | * @static | ||
| 11073 | * @memberOf _ | ||
| 11074 | * @since 1.0.0 | ||
| 11075 | * @category Lang | ||
| 11076 |      * @param {*} value The value to recursively clone. | ||
| 11077 |      * @returns {*} Returns the deep cloned value. | ||
| 11078 | * @see _.clone | ||
| 11079 | * @example | ||
| 11080 | * | ||
| 11081 |      * var objects = [{ 'a': 1 }, { 'b': 2 }]; | ||
| 11082 | * | ||
| 11083 | * var deep = _.cloneDeep(objects); | ||
| 11084 | * console.log(deep[0] === objects[0]); | ||
| 11085 | * // => false | ||
| 11086 | */ | ||
| 11087 |     function cloneDeep(value) { | ||
| 11088 | return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG); | ||
| 11089 | } | ||
| 11090 | |||
| 11091 | /** | ||
| 11092 | * This method is like `_.cloneWith` except that it recursively clones `value`. | ||
| 11093 | * | ||
| 11094 | * @static | ||
| 11095 | * @memberOf _ | ||
| 11096 | * @since 4.0.0 | ||
| 11097 | * @category Lang | ||
| 11098 |      * @param {*} value The value to recursively clone. | ||
| 11099 |      * @param {Function} [customizer] The function to customize cloning. | ||
| 11100 |      * @returns {*} Returns the deep cloned value. | ||
| 11101 | * @see _.cloneWith | ||
| 11102 | * @example | ||
| 11103 | * | ||
| 11104 |      * function customizer(value) { | ||
| 11105 |      *   if (_.isElement(value)) { | ||
| 11106 | * return value.cloneNode(true); | ||
| 11107 | * } | ||
| 11108 | * } | ||
| 11109 | * | ||
| 11110 | * var el = _.cloneDeepWith(document.body, customizer); | ||
| 11111 | * | ||
| 11112 | * console.log(el === document.body); | ||
| 11113 | * // => false | ||
| 11114 | * console.log(el.nodeName); | ||
| 11115 | * // => 'BODY' | ||
| 11116 | * console.log(el.childNodes.length); | ||
| 11117 | * // => 20 | ||
| 11118 | */ | ||
| 11119 |     function cloneDeepWith(value, customizer) { | ||
| 11120 | customizer = typeof customizer == 'function' ? customizer : undefined; | ||
| 11121 | return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG, customizer); | ||
| 11122 | } | ||
| 11123 | |||
| 11124 | /** | ||
| 11125 | * Checks if `object` conforms to `source` by invoking the predicate | ||
| 11126 | * properties of `source` with the corresponding property values of `object`. | ||
| 11127 | * | ||
| 11128 | * **Note:** This method is equivalent to `_.conforms` when `source` is | ||
| 11129 | * partially applied. | ||
| 11130 | * | ||
| 11131 | * @static | ||
| 11132 | * @memberOf _ | ||
| 11133 | * @since 4.14.0 | ||
| 11134 | * @category Lang | ||
| 11135 |      * @param {Object} object The object to inspect. | ||
| 11136 |      * @param {Object} source The object of property predicates to conform to. | ||
| 11137 |      * @returns {boolean} Returns `true` if `object` conforms, else `false`. | ||
| 11138 | * @example | ||
| 11139 | * | ||
| 11140 |      * var object = { 'a': 1, 'b': 2 }; | ||
| 11141 | * | ||
| 11142 |      * _.conformsTo(object, { 'b': function(n) { return n > 1; } }); | ||
| 11143 | * // => true | ||
| 11144 | * | ||
| 11145 |      * _.conformsTo(object, { 'b': function(n) { return n > 2; } }); | ||
| 11146 | * // => false | ||
| 11147 | */ | ||
| 11148 |     function conformsTo(object, source) { | ||
| 11149 | return source == null || baseConformsTo(object, source, keys(source)); | ||
| 11150 | } | ||
| 11151 | |||
| 11152 | /** | ||
| 11153 | * Performs a | ||
| 11154 | * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) | ||
| 11155 | * comparison between two values to determine if they are equivalent. | ||
| 11156 | * | ||
| 11157 | * @static | ||
| 11158 | * @memberOf _ | ||
| 11159 | * @since 4.0.0 | ||
| 11160 | * @category Lang | ||
| 11161 |      * @param {*} value The value to compare. | ||
| 11162 |      * @param {*} other The other value to compare. | ||
| 11163 |      * @returns {boolean} Returns `true` if the values are equivalent, else `false`. | ||
| 11164 | * @example | ||
| 11165 | * | ||
| 11166 |      * var object = { 'a': 1 }; | ||
| 11167 |      * var other = { 'a': 1 }; | ||
| 11168 | * | ||
| 11169 | * _.eq(object, object); | ||
| 11170 | * // => true | ||
| 11171 | * | ||
| 11172 | * _.eq(object, other); | ||
| 11173 | * // => false | ||
| 11174 | * | ||
| 11175 |      * _.eq('a', 'a'); | ||
| 11176 | * // => true | ||
| 11177 | * | ||
| 11178 |      * _.eq('a', Object('a')); | ||
| 11179 | * // => false | ||
| 11180 | * | ||
| 11181 | * _.eq(NaN, NaN); | ||
| 11182 | * // => true | ||
| 11183 | */ | ||
| 11184 |     function eq(value, other) { | ||
| 11185 | return value === other || (value !== value && other !== other); | ||
| 11186 | } | ||
| 11187 | |||
| 11188 | /** | ||
| 11189 | * Checks if `value` is greater than `other`. | ||
| 11190 | * | ||
| 11191 | * @static | ||
| 11192 | * @memberOf _ | ||
| 11193 | * @since 3.9.0 | ||
| 11194 | * @category Lang | ||
| 11195 |      * @param {*} value The value to compare. | ||
| 11196 |      * @param {*} other The other value to compare. | ||
| 11197 |      * @returns {boolean} Returns `true` if `value` is greater than `other`, | ||
| 11198 | * else `false`. | ||
| 11199 | * @see _.lt | ||
| 11200 | * @example | ||
| 11201 | * | ||
| 11202 | * _.gt(3, 1); | ||
| 11203 | * // => true | ||
| 11204 | * | ||
| 11205 | * _.gt(3, 3); | ||
| 11206 | * // => false | ||
| 11207 | * | ||
| 11208 | * _.gt(1, 3); | ||
| 11209 | * // => false | ||
| 11210 | */ | ||
| 11211 | var gt = createRelationalOperation(baseGt); | ||
| 11212 | |||
| 11213 | /** | ||
| 11214 | * Checks if `value` is greater than or equal to `other`. | ||
| 11215 | * | ||
| 11216 | * @static | ||
| 11217 | * @memberOf _ | ||
| 11218 | * @since 3.9.0 | ||
| 11219 | * @category Lang | ||
| 11220 |      * @param {*} value The value to compare. | ||
| 11221 |      * @param {*} other The other value to compare. | ||
| 11222 |      * @returns {boolean} Returns `true` if `value` is greater than or equal to | ||
| 11223 | * `other`, else `false`. | ||
| 11224 | * @see _.lte | ||
| 11225 | * @example | ||
| 11226 | * | ||
| 11227 | * _.gte(3, 1); | ||
| 11228 | * // => true | ||
| 11229 | * | ||
| 11230 | * _.gte(3, 3); | ||
| 11231 | * // => true | ||
| 11232 | * | ||
| 11233 | * _.gte(1, 3); | ||
| 11234 | * // => false | ||
| 11235 | */ | ||
| 11236 |     var gte = createRelationalOperation(function(value, other) { | ||
| 11237 | return value >= other; | ||
| 11238 | }); | ||
| 11239 | |||
| 11240 | /** | ||
| 11241 | * Checks if `value` is likely an `arguments` object. | ||
| 11242 | * | ||
| 11243 | * @static | ||
| 11244 | * @memberOf _ | ||
| 11245 | * @since 0.1.0 | ||
| 11246 | * @category Lang | ||
| 11247 |      * @param {*} value The value to check. | ||
| 11248 |      * @returns {boolean} Returns `true` if `value` is an `arguments` object, | ||
| 11249 | * else `false`. | ||
| 11250 | * @example | ||
| 11251 | * | ||
| 11252 |      * _.isArguments(function() { return arguments; }()); | ||
| 11253 | * // => true | ||
| 11254 | * | ||
| 11255 | * _.isArguments([1, 2, 3]); | ||
| 11256 | * // => false | ||
| 11257 | */ | ||
| 11258 |     var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) { | ||
| 11259 | return isObjectLike(value) && hasOwnProperty.call(value, 'callee') && | ||
| 11260 | !propertyIsEnumerable.call(value, 'callee'); | ||
| 11261 | }; | ||
| 11262 | |||
| 11263 | /** | ||
| 11264 | * Checks if `value` is classified as an `Array` object. | ||
| 11265 | * | ||
| 11266 | * @static | ||
| 11267 | * @memberOf _ | ||
| 11268 | * @since 0.1.0 | ||
| 11269 | * @category Lang | ||
| 11270 |      * @param {*} value The value to check. | ||
| 11271 |      * @returns {boolean} Returns `true` if `value` is an array, else `false`. | ||
| 11272 | * @example | ||
| 11273 | * | ||
| 11274 | * _.isArray([1, 2, 3]); | ||
| 11275 | * // => true | ||
| 11276 | * | ||
| 11277 | * _.isArray(document.body.children); | ||
| 11278 | * // => false | ||
| 11279 | * | ||
| 11280 |      * _.isArray('abc'); | ||
| 11281 | * // => false | ||
| 11282 | * | ||
| 11283 | * _.isArray(_.noop); | ||
| 11284 | * // => false | ||
| 11285 | */ | ||
| 11286 | var isArray = Array.isArray; | ||
| 11287 | |||
| 11288 | /** | ||
| 11289 | * Checks if `value` is classified as an `ArrayBuffer` object. | ||
| 11290 | * | ||
| 11291 | * @static | ||
| 11292 | * @memberOf _ | ||
| 11293 | * @since 4.3.0 | ||
| 11294 | * @category Lang | ||
| 11295 |      * @param {*} value The value to check. | ||
| 11296 |      * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`. | ||
| 11297 | * @example | ||
| 11298 | * | ||
| 11299 | * _.isArrayBuffer(new ArrayBuffer(2)); | ||
| 11300 | * // => true | ||
| 11301 | * | ||
| 11302 | * _.isArrayBuffer(new Array(2)); | ||
| 11303 | * // => false | ||
| 11304 | */ | ||
| 11305 | var isArrayBuffer = nodeIsArrayBuffer ? baseUnary(nodeIsArrayBuffer) : baseIsArrayBuffer; | ||
| 11306 | |||
| 11307 | /** | ||
| 11308 | * Checks if `value` is array-like. A value is considered array-like if it's | ||
| 11309 | * not a function and has a `value.length` that's an integer greater than or | ||
| 11310 | * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`. | ||
| 11311 | * | ||
| 11312 | * @static | ||
| 11313 | * @memberOf _ | ||
| 11314 | * @since 4.0.0 | ||
| 11315 | * @category Lang | ||
| 11316 |      * @param {*} value The value to check. | ||
| 11317 |      * @returns {boolean} Returns `true` if `value` is array-like, else `false`. | ||
| 11318 | * @example | ||
| 11319 | * | ||
| 11320 | * _.isArrayLike([1, 2, 3]); | ||
| 11321 | * // => true | ||
| 11322 | * | ||
| 11323 | * _.isArrayLike(document.body.children); | ||
| 11324 | * // => true | ||
| 11325 | * | ||
| 11326 |      * _.isArrayLike('abc'); | ||
| 11327 | * // => true | ||
| 11328 | * | ||
| 11329 | * _.isArrayLike(_.noop); | ||
| 11330 | * // => false | ||
| 11331 | */ | ||
| 11332 |     function isArrayLike(value) { | ||
| 11333 | return value != null && isLength(value.length) && !isFunction(value); | ||
| 11334 | } | ||
| 11335 | |||
| 11336 | /** | ||
| 11337 | * This method is like `_.isArrayLike` except that it also checks if `value` | ||
| 11338 | * is an object. | ||
| 11339 | * | ||
| 11340 | * @static | ||
| 11341 | * @memberOf _ | ||
| 11342 | * @since 4.0.0 | ||
| 11343 | * @category Lang | ||
| 11344 |      * @param {*} value The value to check. | ||
| 11345 |      * @returns {boolean} Returns `true` if `value` is an array-like object, | ||
| 11346 | * else `false`. | ||
| 11347 | * @example | ||
| 11348 | * | ||
| 11349 | * _.isArrayLikeObject([1, 2, 3]); | ||
| 11350 | * // => true | ||
| 11351 | * | ||
| 11352 | * _.isArrayLikeObject(document.body.children); | ||
| 11353 | * // => true | ||
| 11354 | * | ||
| 11355 |      * _.isArrayLikeObject('abc'); | ||
| 11356 | * // => false | ||
| 11357 | * | ||
| 11358 | * _.isArrayLikeObject(_.noop); | ||
| 11359 | * // => false | ||
| 11360 | */ | ||
| 11361 |     function isArrayLikeObject(value) { | ||
| 11362 | return isObjectLike(value) && isArrayLike(value); | ||
| 11363 | } | ||
| 11364 | |||
| 11365 | /** | ||
| 11366 | * Checks if `value` is classified as a boolean primitive or object. | ||
| 11367 | * | ||
| 11368 | * @static | ||
| 11369 | * @memberOf _ | ||
| 11370 | * @since 0.1.0 | ||
| 11371 | * @category Lang | ||
| 11372 |      * @param {*} value The value to check. | ||
| 11373 |      * @returns {boolean} Returns `true` if `value` is a boolean, else `false`. | ||
| 11374 | * @example | ||
| 11375 | * | ||
| 11376 | * _.isBoolean(false); | ||
| 11377 | * // => true | ||
| 11378 | * | ||
| 11379 | * _.isBoolean(null); | ||
| 11380 | * // => false | ||
| 11381 | */ | ||
| 11382 |     function isBoolean(value) { | ||
| 11383 | return value === true || value === false || | ||
| 11384 | (isObjectLike(value) && baseGetTag(value) == boolTag); | ||
| 11385 | } | ||
| 11386 | |||
| 11387 | /** | ||
| 11388 | * Checks if `value` is a buffer. | ||
| 11389 | * | ||
| 11390 | * @static | ||
| 11391 | * @memberOf _ | ||
| 11392 | * @since 4.3.0 | ||
| 11393 | * @category Lang | ||
| 11394 |      * @param {*} value The value to check. | ||
| 11395 |      * @returns {boolean} Returns `true` if `value` is a buffer, else `false`. | ||
| 11396 | * @example | ||
| 11397 | * | ||
| 11398 | * _.isBuffer(new Buffer(2)); | ||
| 11399 | * // => true | ||
| 11400 | * | ||
| 11401 | * _.isBuffer(new Uint8Array(2)); | ||
| 11402 | * // => false | ||
| 11403 | */ | ||
| 11404 | var isBuffer = nativeIsBuffer || stubFalse; | ||
| 11405 | |||
| 11406 | /** | ||
| 11407 | * Checks if `value` is classified as a `Date` object. | ||
| 11408 | * | ||
| 11409 | * @static | ||
| 11410 | * @memberOf _ | ||
| 11411 | * @since 0.1.0 | ||
| 11412 | * @category Lang | ||
| 11413 |      * @param {*} value The value to check. | ||
| 11414 |      * @returns {boolean} Returns `true` if `value` is a date object, else `false`. | ||
| 11415 | * @example | ||
| 11416 | * | ||
| 11417 | * _.isDate(new Date); | ||
| 11418 | * // => true | ||
| 11419 | * | ||
| 11420 |      * _.isDate('Mon April 23 2012'); | ||
| 11421 | * // => false | ||
| 11422 | */ | ||
| 11423 | var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate; | ||
| 11424 | |||
| 11425 | /** | ||
| 11426 | * Checks if `value` is likely a DOM element. | ||
| 11427 | * | ||
| 11428 | * @static | ||
| 11429 | * @memberOf _ | ||
| 11430 | * @since 0.1.0 | ||
| 11431 | * @category Lang | ||
| 11432 |      * @param {*} value The value to check. | ||
| 11433 |      * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`. | ||
| 11434 | * @example | ||
| 11435 | * | ||
| 11436 | * _.isElement(document.body); | ||
| 11437 | * // => true | ||
| 11438 | * | ||
| 11439 |      * _.isElement('<body>'); | ||
| 11440 | * // => false | ||
| 11441 | */ | ||
| 11442 |     function isElement(value) { | ||
| 11443 | return isObjectLike(value) && value.nodeType === 1 && !isPlainObject(value); | ||
| 11444 | } | ||
| 11445 | |||
| 11446 | /** | ||
| 11447 | * Checks if `value` is an empty object, collection, map, or set. | ||
| 11448 | * | ||
| 11449 | * Objects are considered empty if they have no own enumerable string keyed | ||
| 11450 | * properties. | ||
| 11451 | * | ||
| 11452 | * Array-like values such as `arguments` objects, arrays, buffers, strings, or | ||
| 11453 | * jQuery-like collections are considered empty if they have a `length` of `0`. | ||
| 11454 | * Similarly, maps and sets are considered empty if they have a `size` of `0`. | ||
| 11455 | * | ||
| 11456 | * @static | ||
| 11457 | * @memberOf _ | ||
| 11458 | * @since 0.1.0 | ||
| 11459 | * @category Lang | ||
| 11460 |      * @param {*} value The value to check. | ||
| 11461 |      * @returns {boolean} Returns `true` if `value` is empty, else `false`. | ||
| 11462 | * @example | ||
| 11463 | * | ||
| 11464 | * _.isEmpty(null); | ||
| 11465 | * // => true | ||
| 11466 | * | ||
| 11467 | * _.isEmpty(true); | ||
| 11468 | * // => true | ||
| 11469 | * | ||
| 11470 | * _.isEmpty(1); | ||
| 11471 | * // => true | ||
| 11472 | * | ||
| 11473 | * _.isEmpty([1, 2, 3]); | ||
| 11474 | * // => false | ||
| 11475 | * | ||
| 11476 |      * _.isEmpty({ 'a': 1 }); | ||
| 11477 | * // => false | ||
| 11478 | */ | ||
| 11479 |     function isEmpty(value) { | ||
| 11480 |       if (value == null) { | ||
| 11481 | return true; | ||
| 11482 | } | ||
| 11483 | if (isArrayLike(value) && | ||
| 11484 | (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' || | ||
| 11485 |             isBuffer(value) || isTypedArray(value) || isArguments(value))) { | ||
| 11486 | return !value.length; | ||
| 11487 | } | ||
| 11488 | var tag = getTag(value); | ||
| 11489 |       if (tag == mapTag || tag == setTag) { | ||
| 11490 | return !value.size; | ||
| 11491 | } | ||
| 11492 |       if (isPrototype(value)) { | ||
| 11493 | return !baseKeys(value).length; | ||
| 11494 | } | ||
| 11495 |       for (var key in value) { | ||
| 11496 |         if (hasOwnProperty.call(value, key)) { | ||
| 11497 | return false; | ||
| 11498 | } | ||
| 11499 | } | ||
| 11500 | return true; | ||
| 11501 | } | ||
| 11502 | |||
| 11503 | /** | ||
| 11504 | * Performs a deep comparison between two values to determine if they are | ||
| 11505 | * equivalent. | ||
| 11506 | * | ||
| 11507 | * **Note:** This method supports comparing arrays, array buffers, booleans, | ||
| 11508 | * date objects, error objects, maps, numbers, `Object` objects, regexes, | ||
| 11509 | * sets, strings, symbols, and typed arrays. `Object` objects are compared | ||
| 11510 | * by their own, not inherited, enumerable properties. Functions and DOM | ||
| 11511 | * nodes are compared by strict equality, i.e. `===`. | ||
| 11512 | * | ||
| 11513 | * @static | ||
| 11514 | * @memberOf _ | ||
| 11515 | * @since 0.1.0 | ||
| 11516 | * @category Lang | ||
| 11517 |      * @param {*} value The value to compare. | ||
| 11518 |      * @param {*} other The other value to compare. | ||
| 11519 |      * @returns {boolean} Returns `true` if the values are equivalent, else `false`. | ||
| 11520 | * @example | ||
| 11521 | * | ||
| 11522 |      * var object = { 'a': 1 }; | ||
| 11523 |      * var other = { 'a': 1 }; | ||
| 11524 | * | ||
| 11525 | * _.isEqual(object, other); | ||
| 11526 | * // => true | ||
| 11527 | * | ||
| 11528 | * object === other; | ||
| 11529 | * // => false | ||
| 11530 | */ | ||
| 11531 |     function isEqual(value, other) { | ||
| 11532 | return baseIsEqual(value, other); | ||
| 11533 | } | ||
| 11534 | |||
| 11535 | /** | ||
| 11536 | * This method is like `_.isEqual` except that it accepts `customizer` which | ||
| 11537 | * is invoked to compare values. If `customizer` returns `undefined`, comparisons | ||
| 11538 | * are handled by the method instead. The `customizer` is invoked with up to | ||
| 11539 | * six arguments: (objValue, othValue [, index|key, object, other, stack]). | ||
| 11540 | * | ||
| 11541 | * @static | ||
| 11542 | * @memberOf _ | ||
| 11543 | * @since 4.0.0 | ||
| 11544 | * @category Lang | ||
| 11545 |      * @param {*} value The value to compare. | ||
| 11546 |      * @param {*} other The other value to compare. | ||
| 11547 |      * @param {Function} [customizer] The function to customize comparisons. | ||
| 11548 |      * @returns {boolean} Returns `true` if the values are equivalent, else `false`. | ||
| 11549 | * @example | ||
| 11550 | * | ||
| 11551 |      * function isGreeting(value) { | ||
| 11552 | * return /^h(?:i|ello)$/.test(value); | ||
| 11553 | * } | ||
| 11554 | * | ||
| 11555 |      * function customizer(objValue, othValue) { | ||
| 11556 |      *   if (isGreeting(objValue) && isGreeting(othValue)) { | ||
| 11557 | * return true; | ||
| 11558 | * } | ||
| 11559 | * } | ||
| 11560 | * | ||
| 11561 | * var array = ['hello', 'goodbye']; | ||
| 11562 | * var other = ['hi', 'goodbye']; | ||
| 11563 | * | ||
| 11564 | * _.isEqualWith(array, other, customizer); | ||
| 11565 | * // => true | ||
| 11566 | */ | ||
| 11567 |     function isEqualWith(value, other, customizer) { | ||
| 11568 | customizer = typeof customizer == 'function' ? customizer : undefined; | ||
| 11569 | var result = customizer ? customizer(value, other) : undefined; | ||
| 11570 | return result === undefined ? baseIsEqual(value, other, undefined, customizer) : !!result; | ||
| 11571 | } | ||
| 11572 | |||
| 11573 | /** | ||
| 11574 | * Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`, | ||
| 11575 | * `SyntaxError`, `TypeError`, or `URIError` object. | ||
| 11576 | * | ||
| 11577 | * @static | ||
| 11578 | * @memberOf _ | ||
| 11579 | * @since 3.0.0 | ||
| 11580 | * @category Lang | ||
| 11581 |      * @param {*} value The value to check. | ||
| 11582 |      * @returns {boolean} Returns `true` if `value` is an error object, else `false`. | ||
| 11583 | * @example | ||
| 11584 | * | ||
| 11585 | * _.isError(new Error); | ||
| 11586 | * // => true | ||
| 11587 | * | ||
| 11588 | * _.isError(Error); | ||
| 11589 | * // => false | ||
| 11590 | */ | ||
| 11591 |     function isError(value) { | ||
| 11592 |       if (!isObjectLike(value)) { | ||
| 11593 | return false; | ||
| 11594 | } | ||
| 11595 | var tag = baseGetTag(value); | ||
| 11596 | return tag == errorTag || tag == domExcTag || | ||
| 11597 | (typeof value.message == 'string' && typeof value.name == 'string' && !isPlainObject(value)); | ||
| 11598 | } | ||
| 11599 | |||
| 11600 | /** | ||
| 11601 | * Checks if `value` is a finite primitive number. | ||
| 11602 | * | ||
| 11603 | * **Note:** This method is based on | ||
| 11604 | * [`Number.isFinite`](https://mdn.io/Number/isFinite). | ||
| 11605 | * | ||
| 11606 | * @static | ||
| 11607 | * @memberOf _ | ||
| 11608 | * @since 0.1.0 | ||
| 11609 | * @category Lang | ||
| 11610 |      * @param {*} value The value to check. | ||
| 11611 |      * @returns {boolean} Returns `true` if `value` is a finite number, else `false`. | ||
| 11612 | * @example | ||
| 11613 | * | ||
| 11614 | * _.isFinite(3); | ||
| 11615 | * // => true | ||
| 11616 | * | ||
| 11617 | * _.isFinite(Number.MIN_VALUE); | ||
| 11618 | * // => true | ||
| 11619 | * | ||
| 11620 | * _.isFinite(Infinity); | ||
| 11621 | * // => false | ||
| 11622 | * | ||
| 11623 |      * _.isFinite('3'); | ||
| 11624 | * // => false | ||
| 11625 | */ | ||
| 11626 |     function isFinite(value) { | ||
| 11627 | return typeof value == 'number' && nativeIsFinite(value); | ||
| 11628 | } | ||
| 11629 | |||
| 11630 | /** | ||
| 11631 | * Checks if `value` is classified as a `Function` object. | ||
| 11632 | * | ||
| 11633 | * @static | ||
| 11634 | * @memberOf _ | ||
| 11635 | * @since 0.1.0 | ||
| 11636 | * @category Lang | ||
| 11637 |      * @param {*} value The value to check. | ||
| 11638 |      * @returns {boolean} Returns `true` if `value` is a function, else `false`. | ||
| 11639 | * @example | ||
| 11640 | * | ||
| 11641 | * _.isFunction(_); | ||
| 11642 | * // => true | ||
| 11643 | * | ||
| 11644 | * _.isFunction(/abc/); | ||
| 11645 | * // => false | ||
| 11646 | */ | ||
| 11647 |     function isFunction(value) { | ||
| 11648 |       if (!isObject(value)) { | ||
| 11649 | return false; | ||
| 11650 | } | ||
| 11651 | // The use of `Object#toString` avoids issues with the `typeof` operator | ||
| 11652 | // in Safari 9 which returns 'object' for typed arrays and other constructors. | ||
| 11653 | var tag = baseGetTag(value); | ||
| 11654 | return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag; | ||
| 11655 | } | ||
| 11656 | |||
| 11657 | /** | ||
| 11658 | * Checks if `value` is an integer. | ||
| 11659 | * | ||
| 11660 | * **Note:** This method is based on | ||
| 11661 | * [`Number.isInteger`](https://mdn.io/Number/isInteger). | ||
| 11662 | * | ||
| 11663 | * @static | ||
| 11664 | * @memberOf _ | ||
| 11665 | * @since 4.0.0 | ||
| 11666 | * @category Lang | ||
| 11667 |      * @param {*} value The value to check. | ||
| 11668 |      * @returns {boolean} Returns `true` if `value` is an integer, else `false`. | ||
| 11669 | * @example | ||
| 11670 | * | ||
| 11671 | * _.isInteger(3); | ||
| 11672 | * // => true | ||
| 11673 | * | ||
| 11674 | * _.isInteger(Number.MIN_VALUE); | ||
| 11675 | * // => false | ||
| 11676 | * | ||
| 11677 | * _.isInteger(Infinity); | ||
| 11678 | * // => false | ||
| 11679 | * | ||
| 11680 |      * _.isInteger('3'); | ||
| 11681 | * // => false | ||
| 11682 | */ | ||
| 11683 |     function isInteger(value) { | ||
| 11684 | return typeof value == 'number' && value == toInteger(value); | ||
| 11685 | } | ||
| 11686 | |||
| 11687 | /** | ||
| 11688 | * Checks if `value` is a valid array-like length. | ||
| 11689 | * | ||
| 11690 | * **Note:** This method is loosely based on | ||
| 11691 | * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength). | ||
| 11692 | * | ||
| 11693 | * @static | ||
| 11694 | * @memberOf _ | ||
| 11695 | * @since 4.0.0 | ||
| 11696 | * @category Lang | ||
| 11697 |      * @param {*} value The value to check. | ||
| 11698 |      * @returns {boolean} Returns `true` if `value` is a valid length, else `false`. | ||
| 11699 | * @example | ||
| 11700 | * | ||
| 11701 | * _.isLength(3); | ||
| 11702 | * // => true | ||
| 11703 | * | ||
| 11704 | * _.isLength(Number.MIN_VALUE); | ||
| 11705 | * // => false | ||
| 11706 | * | ||
| 11707 | * _.isLength(Infinity); | ||
| 11708 | * // => false | ||
| 11709 | * | ||
| 11710 |      * _.isLength('3'); | ||
| 11711 | * // => false | ||
| 11712 | */ | ||
| 11713 |     function isLength(value) { | ||
| 11714 | return typeof value == 'number' && | ||
| 11715 | value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER; | ||
| 11716 | } | ||
| 11717 | |||
| 11718 | /** | ||
| 11719 | * Checks if `value` is the | ||
| 11720 | * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types) | ||
| 11721 |      * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) | ||
| 11722 | * | ||
| 11723 | * @static | ||
| 11724 | * @memberOf _ | ||
| 11725 | * @since 0.1.0 | ||
| 11726 | * @category Lang | ||
| 11727 |      * @param {*} value The value to check. | ||
| 11728 |      * @returns {boolean} Returns `true` if `value` is an object, else `false`. | ||
| 11729 | * @example | ||
| 11730 | * | ||
| 11731 |      * _.isObject({}); | ||
| 11732 | * // => true | ||
| 11733 | * | ||
| 11734 | * _.isObject([1, 2, 3]); | ||
| 11735 | * // => true | ||
| 11736 | * | ||
| 11737 | * _.isObject(_.noop); | ||
| 11738 | * // => true | ||
| 11739 | * | ||
| 11740 | * _.isObject(null); | ||
| 11741 | * // => false | ||
| 11742 | */ | ||
| 11743 |     function isObject(value) { | ||
| 11744 | var type = typeof value; | ||
| 11745 | return value != null && (type == 'object' || type == 'function'); | ||
| 11746 | } | ||
| 11747 | |||
| 11748 | /** | ||
| 11749 | * Checks if `value` is object-like. A value is object-like if it's not `null` | ||
| 11750 | * and has a `typeof` result of "object". | ||
| 11751 | * | ||
| 11752 | * @static | ||
| 11753 | * @memberOf _ | ||
| 11754 | * @since 4.0.0 | ||
| 11755 | * @category Lang | ||
| 11756 |      * @param {*} value The value to check. | ||
| 11757 |      * @returns {boolean} Returns `true` if `value` is object-like, else `false`. | ||
| 11758 | * @example | ||
| 11759 | * | ||
| 11760 |      * _.isObjectLike({}); | ||
| 11761 | * // => true | ||
| 11762 | * | ||
| 11763 | * _.isObjectLike([1, 2, 3]); | ||
| 11764 | * // => true | ||
| 11765 | * | ||
| 11766 | * _.isObjectLike(_.noop); | ||
| 11767 | * // => false | ||
| 11768 | * | ||
| 11769 | * _.isObjectLike(null); | ||
| 11770 | * // => false | ||
| 11771 | */ | ||
| 11772 |     function isObjectLike(value) { | ||
| 11773 | return value != null && typeof value == 'object'; | ||
| 11774 | } | ||
| 11775 | |||
| 11776 | /** | ||
| 11777 | * Checks if `value` is classified as a `Map` object. | ||
| 11778 | * | ||
| 11779 | * @static | ||
| 11780 | * @memberOf _ | ||
| 11781 | * @since 4.3.0 | ||
| 11782 | * @category Lang | ||
| 11783 |      * @param {*} value The value to check. | ||
| 11784 |      * @returns {boolean} Returns `true` if `value` is a map, else `false`. | ||
| 11785 | * @example | ||
| 11786 | * | ||
| 11787 | * _.isMap(new Map); | ||
| 11788 | * // => true | ||
| 11789 | * | ||
| 11790 | * _.isMap(new WeakMap); | ||
| 11791 | * // => false | ||
| 11792 | */ | ||
| 11793 | var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap; | ||
| 11794 | |||
| 11795 | /** | ||
| 11796 | * Performs a partial deep comparison between `object` and `source` to | ||
| 11797 | * determine if `object` contains equivalent property values. | ||
| 11798 | * | ||
| 11799 | * **Note:** This method is equivalent to `_.matches` when `source` is | ||
| 11800 | * partially applied. | ||
| 11801 | * | ||
| 11802 | * Partial comparisons will match empty array and empty object `source` | ||
| 11803 | * values against any array or object value, respectively. See `_.isEqual` | ||
| 11804 | * for a list of supported value comparisons. | ||
| 11805 | * | ||
| 11806 | * @static | ||
| 11807 | * @memberOf _ | ||
| 11808 | * @since 3.0.0 | ||
| 11809 | * @category Lang | ||
| 11810 |      * @param {Object} object The object to inspect. | ||
| 11811 |      * @param {Object} source The object of property values to match. | ||
| 11812 |      * @returns {boolean} Returns `true` if `object` is a match, else `false`. | ||
| 11813 | * @example | ||
| 11814 | * | ||
| 11815 |      * var object = { 'a': 1, 'b': 2 }; | ||
| 11816 | * | ||
| 11817 |      * _.isMatch(object, { 'b': 2 }); | ||
| 11818 | * // => true | ||
| 11819 | * | ||
| 11820 |      * _.isMatch(object, { 'b': 1 }); | ||
| 11821 | * // => false | ||
| 11822 | */ | ||
| 11823 |     function isMatch(object, source) { | ||
| 11824 | return object === source || baseIsMatch(object, source, getMatchData(source)); | ||
| 11825 | } | ||
| 11826 | |||
| 11827 | /** | ||
| 11828 | * This method is like `_.isMatch` except that it accepts `customizer` which | ||
| 11829 | * is invoked to compare values. If `customizer` returns `undefined`, comparisons | ||
| 11830 | * are handled by the method instead. The `customizer` is invoked with five | ||
| 11831 | * arguments: (objValue, srcValue, index|key, object, source). | ||
| 11832 | * | ||
| 11833 | * @static | ||
| 11834 | * @memberOf _ | ||
| 11835 | * @since 4.0.0 | ||
| 11836 | * @category Lang | ||
| 11837 |      * @param {Object} object The object to inspect. | ||
| 11838 |      * @param {Object} source The object of property values to match. | ||
| 11839 |      * @param {Function} [customizer] The function to customize comparisons. | ||
| 11840 |      * @returns {boolean} Returns `true` if `object` is a match, else `false`. | ||
| 11841 | * @example | ||
| 11842 | * | ||
| 11843 |      * function isGreeting(value) { | ||
| 11844 | * return /^h(?:i|ello)$/.test(value); | ||
| 11845 | * } | ||
| 11846 | * | ||
| 11847 |      * function customizer(objValue, srcValue) { | ||
| 11848 |      *   if (isGreeting(objValue) && isGreeting(srcValue)) { | ||
| 11849 | * return true; | ||
| 11850 | * } | ||
| 11851 | * } | ||
| 11852 | * | ||
| 11853 |      * var object = { 'greeting': 'hello' }; | ||
| 11854 |      * var source = { 'greeting': 'hi' }; | ||
| 11855 | * | ||
| 11856 | * _.isMatchWith(object, source, customizer); | ||
| 11857 | * // => true | ||
| 11858 | */ | ||
| 11859 |     function isMatchWith(object, source, customizer) { | ||
| 11860 | customizer = typeof customizer == 'function' ? customizer : undefined; | ||
| 11861 | return baseIsMatch(object, source, getMatchData(source), customizer); | ||
| 11862 | } | ||
| 11863 | |||
| 11864 | /** | ||
| 11865 | * Checks if `value` is `NaN`. | ||
| 11866 | * | ||
| 11867 | * **Note:** This method is based on | ||
| 11868 | * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as | ||
| 11869 | * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for | ||
| 11870 | * `undefined` and other non-number values. | ||
| 11871 | * | ||
| 11872 | * @static | ||
| 11873 | * @memberOf _ | ||
| 11874 | * @since 0.1.0 | ||
| 11875 | * @category Lang | ||
| 11876 |      * @param {*} value The value to check. | ||
| 11877 |      * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. | ||
| 11878 | * @example | ||
| 11879 | * | ||
| 11880 | * _.isNaN(NaN); | ||
| 11881 | * // => true | ||
| 11882 | * | ||
| 11883 | * _.isNaN(new Number(NaN)); | ||
| 11884 | * // => true | ||
| 11885 | * | ||
| 11886 | * isNaN(undefined); | ||
| 11887 | * // => true | ||
| 11888 | * | ||
| 11889 | * _.isNaN(undefined); | ||
| 11890 | * // => false | ||
| 11891 | */ | ||
| 11892 |     function isNaN(value) { | ||
| 11893 | // An `NaN` primitive is the only value that is not equal to itself. | ||
| 11894 | // Perform the `toStringTag` check first to avoid errors with some | ||
| 11895 | // ActiveX objects in IE. | ||
| 11896 | return isNumber(value) && value != +value; | ||
| 11897 | } | ||
| 11898 | |||
| 11899 | /** | ||
| 11900 | * Checks if `value` is a pristine native function. | ||
| 11901 | * | ||
| 11902 | * **Note:** This method can't reliably detect native functions in the presence | ||
| 11903 | * of the core-js package because core-js circumvents this kind of detection. | ||
| 11904 | * Despite multiple requests, the core-js maintainer has made it clear: any | ||
| 11905 | * attempt to fix the detection will be obstructed. As a result, we're left | ||
| 11906 | * with little choice but to throw an error. Unfortunately, this also affects | ||
| 11907 | * packages, like [babel-polyfill](https://www.npmjs.com/package/babel-polyfill), | ||
| 11908 | * which rely on core-js. | ||
| 11909 | * | ||
| 11910 | * @static | ||
| 11911 | * @memberOf _ | ||
| 11912 | * @since 3.0.0 | ||
| 11913 | * @category Lang | ||
| 11914 |      * @param {*} value The value to check. | ||
| 11915 |      * @returns {boolean} Returns `true` if `value` is a native function, | ||
| 11916 | * else `false`. | ||
| 11917 | * @example | ||
| 11918 | * | ||
| 11919 | * _.isNative(Array.prototype.push); | ||
| 11920 | * // => true | ||
| 11921 | * | ||
| 11922 | * _.isNative(_); | ||
| 11923 | * // => false | ||
| 11924 | */ | ||
| 11925 |     function isNative(value) { | ||
| 11926 |       if (isMaskable(value)) { | ||
| 11927 | throw new Error(CORE_ERROR_TEXT); | ||
| 11928 | } | ||
| 11929 | return baseIsNative(value); | ||
| 11930 | } | ||
| 11931 | |||
| 11932 | /** | ||
| 11933 | * Checks if `value` is `null`. | ||
| 11934 | * | ||
| 11935 | * @static | ||
| 11936 | * @memberOf _ | ||
| 11937 | * @since 0.1.0 | ||
| 11938 | * @category Lang | ||
| 11939 |      * @param {*} value The value to check. | ||
| 11940 |      * @returns {boolean} Returns `true` if `value` is `null`, else `false`. | ||
| 11941 | * @example | ||
| 11942 | * | ||
| 11943 | * _.isNull(null); | ||
| 11944 | * // => true | ||
| 11945 | * | ||
| 11946 | * _.isNull(void 0); | ||
| 11947 | * // => false | ||
| 11948 | */ | ||
| 11949 |     function isNull(value) { | ||
| 11950 | return value === null; | ||
| 11951 | } | ||
| 11952 | |||
| 11953 | /** | ||
| 11954 | * Checks if `value` is `null` or `undefined`. | ||
| 11955 | * | ||
| 11956 | * @static | ||
| 11957 | * @memberOf _ | ||
| 11958 | * @since 4.0.0 | ||
| 11959 | * @category Lang | ||
| 11960 |      * @param {*} value The value to check. | ||
| 11961 |      * @returns {boolean} Returns `true` if `value` is nullish, else `false`. | ||
| 11962 | * @example | ||
| 11963 | * | ||
| 11964 | * _.isNil(null); | ||
| 11965 | * // => true | ||
| 11966 | * | ||
| 11967 | * _.isNil(void 0); | ||
| 11968 | * // => true | ||
| 11969 | * | ||
| 11970 | * _.isNil(NaN); | ||
| 11971 | * // => false | ||
| 11972 | */ | ||
| 11973 |     function isNil(value) { | ||
| 11974 | return value == null; | ||
| 11975 | } | ||
| 11976 | |||
| 11977 | /** | ||
| 11978 | * Checks if `value` is classified as a `Number` primitive or object. | ||
| 11979 | * | ||
| 11980 | * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are | ||
| 11981 | * classified as numbers, use the `_.isFinite` method. | ||
| 11982 | * | ||
| 11983 | * @static | ||
| 11984 | * @memberOf _ | ||
| 11985 | * @since 0.1.0 | ||
| 11986 | * @category Lang | ||
| 11987 |      * @param {*} value The value to check. | ||
| 11988 |      * @returns {boolean} Returns `true` if `value` is a number, else `false`. | ||
| 11989 | * @example | ||
| 11990 | * | ||
| 11991 | * _.isNumber(3); | ||
| 11992 | * // => true | ||
| 11993 | * | ||
| 11994 | * _.isNumber(Number.MIN_VALUE); | ||
| 11995 | * // => true | ||
| 11996 | * | ||
| 11997 | * _.isNumber(Infinity); | ||
| 11998 | * // => true | ||
| 11999 | * | ||
| 12000 |      * _.isNumber('3'); | ||
| 12001 | * // => false | ||
| 12002 | */ | ||
| 12003 |     function isNumber(value) { | ||
| 12004 | return typeof value == 'number' || | ||
| 12005 | (isObjectLike(value) && baseGetTag(value) == numberTag); | ||
| 12006 | } | ||
| 12007 | |||
| 12008 | /** | ||
| 12009 | * Checks if `value` is a plain object, that is, an object created by the | ||
| 12010 | * `Object` constructor or one with a `[[Prototype]]` of `null`. | ||
| 12011 | * | ||
| 12012 | * @static | ||
| 12013 | * @memberOf _ | ||
| 12014 | * @since 0.8.0 | ||
| 12015 | * @category Lang | ||
| 12016 |      * @param {*} value The value to check. | ||
| 12017 |      * @returns {boolean} Returns `true` if `value` is a plain object, else `false`. | ||
| 12018 | * @example | ||
| 12019 | * | ||
| 12020 |      * function Foo() { | ||
| 12021 | * this.a = 1; | ||
| 12022 | * } | ||
| 12023 | * | ||
| 12024 | * _.isPlainObject(new Foo); | ||
| 12025 | * // => false | ||
| 12026 | * | ||
| 12027 | * _.isPlainObject([1, 2, 3]); | ||
| 12028 | * // => false | ||
| 12029 | * | ||
| 12030 |      * _.isPlainObject({ 'x': 0, 'y': 0 }); | ||
| 12031 | * // => true | ||
| 12032 | * | ||
| 12033 | * _.isPlainObject(Object.create(null)); | ||
| 12034 | * // => true | ||
| 12035 | */ | ||
| 12036 |     function isPlainObject(value) { | ||
| 12037 |       if (!isObjectLike(value) || baseGetTag(value) != objectTag) { | ||
| 12038 | return false; | ||
| 12039 | } | ||
| 12040 | var proto = getPrototype(value); | ||
| 12041 |       if (proto === null) { | ||
| 12042 | return true; | ||
| 12043 | } | ||
| 12044 | var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor; | ||
| 12045 | return typeof Ctor == 'function' && Ctor instanceof Ctor && | ||
| 12046 | funcToString.call(Ctor) == objectCtorString; | ||
| 12047 | } | ||
| 12048 | |||
| 12049 | /** | ||
| 12050 | * Checks if `value` is classified as a `RegExp` object. | ||
| 12051 | * | ||
| 12052 | * @static | ||
| 12053 | * @memberOf _ | ||
| 12054 | * @since 0.1.0 | ||
| 12055 | * @category Lang | ||
| 12056 |      * @param {*} value The value to check. | ||
| 12057 |      * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. | ||
| 12058 | * @example | ||
| 12059 | * | ||
| 12060 | * _.isRegExp(/abc/); | ||
| 12061 | * // => true | ||
| 12062 | * | ||
| 12063 |      * _.isRegExp('/abc/'); | ||
| 12064 | * // => false | ||
| 12065 | */ | ||
| 12066 | var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp; | ||
| 12067 | |||
| 12068 | /** | ||
| 12069 | * Checks if `value` is a safe integer. An integer is safe if it's an IEEE-754 | ||
| 12070 | * double precision number which isn't the result of a rounded unsafe integer. | ||
| 12071 | * | ||
| 12072 | * **Note:** This method is based on | ||
| 12073 | * [`Number.isSafeInteger`](https://mdn.io/Number/isSafeInteger). | ||
| 12074 | * | ||
| 12075 | * @static | ||
| 12076 | * @memberOf _ | ||
| 12077 | * @since 4.0.0 | ||
| 12078 | * @category Lang | ||
| 12079 |      * @param {*} value The value to check. | ||
| 12080 |      * @returns {boolean} Returns `true` if `value` is a safe integer, else `false`. | ||
| 12081 | * @example | ||
| 12082 | * | ||
| 12083 | * _.isSafeInteger(3); | ||
| 12084 | * // => true | ||
| 12085 | * | ||
| 12086 | * _.isSafeInteger(Number.MIN_VALUE); | ||
| 12087 | * // => false | ||
| 12088 | * | ||
| 12089 | * _.isSafeInteger(Infinity); | ||
| 12090 | * // => false | ||
| 12091 | * | ||
| 12092 |      * _.isSafeInteger('3'); | ||
| 12093 | * // => false | ||
| 12094 | */ | ||
| 12095 |     function isSafeInteger(value) { | ||
| 12096 | return isInteger(value) && value >= -MAX_SAFE_INTEGER && value <= MAX_SAFE_INTEGER; | ||
| 12097 | } | ||
| 12098 | |||
| 12099 | /** | ||
| 12100 | * Checks if `value` is classified as a `Set` object. | ||
| 12101 | * | ||
| 12102 | * @static | ||
| 12103 | * @memberOf _ | ||
| 12104 | * @since 4.3.0 | ||
| 12105 | * @category Lang | ||
| 12106 |      * @param {*} value The value to check. | ||
| 12107 |      * @returns {boolean} Returns `true` if `value` is a set, else `false`. | ||
| 12108 | * @example | ||
| 12109 | * | ||
| 12110 | * _.isSet(new Set); | ||
| 12111 | * // => true | ||
| 12112 | * | ||
| 12113 | * _.isSet(new WeakSet); | ||
| 12114 | * // => false | ||
| 12115 | */ | ||
| 12116 | var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet; | ||
| 12117 | |||
| 12118 | /** | ||
| 12119 | * Checks if `value` is classified as a `String` primitive or object. | ||
| 12120 | * | ||
| 12121 | * @static | ||
| 12122 | * @since 0.1.0 | ||
| 12123 | * @memberOf _ | ||
| 12124 | * @category Lang | ||
| 12125 |      * @param {*} value The value to check. | ||
| 12126 |      * @returns {boolean} Returns `true` if `value` is a string, else `false`. | ||
| 12127 | * @example | ||
| 12128 | * | ||
| 12129 |      * _.isString('abc'); | ||
| 12130 | * // => true | ||
| 12131 | * | ||
| 12132 | * _.isString(1); | ||
| 12133 | * // => false | ||
| 12134 | */ | ||
| 12135 |     function isString(value) { | ||
| 12136 | return typeof value == 'string' || | ||
| 12137 | (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag); | ||
| 12138 | } | ||
| 12139 | |||
| 12140 | /** | ||
| 12141 | * Checks if `value` is classified as a `Symbol` primitive or object. | ||
| 12142 | * | ||
| 12143 | * @static | ||
| 12144 | * @memberOf _ | ||
| 12145 | * @since 4.0.0 | ||
| 12146 | * @category Lang | ||
| 12147 |      * @param {*} value The value to check. | ||
| 12148 |      * @returns {boolean} Returns `true` if `value` is a symbol, else `false`. | ||
| 12149 | * @example | ||
| 12150 | * | ||
| 12151 | * _.isSymbol(Symbol.iterator); | ||
| 12152 | * // => true | ||
| 12153 | * | ||
| 12154 |      * _.isSymbol('abc'); | ||
| 12155 | * // => false | ||
| 12156 | */ | ||
| 12157 |     function isSymbol(value) { | ||
| 12158 | return typeof value == 'symbol' || | ||
| 12159 | (isObjectLike(value) && baseGetTag(value) == symbolTag); | ||
| 12160 | } | ||
| 12161 | |||
| 12162 | /** | ||
| 12163 | * Checks if `value` is classified as a typed array. | ||
| 12164 | * | ||
| 12165 | * @static | ||
| 12166 | * @memberOf _ | ||
| 12167 | * @since 3.0.0 | ||
| 12168 | * @category Lang | ||
| 12169 |      * @param {*} value The value to check. | ||
| 12170 |      * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. | ||
| 12171 | * @example | ||
| 12172 | * | ||
| 12173 | * _.isTypedArray(new Uint8Array); | ||
| 12174 | * // => true | ||
| 12175 | * | ||
| 12176 | * _.isTypedArray([]); | ||
| 12177 | * // => false | ||
| 12178 | */ | ||
| 12179 | var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray; | ||
| 12180 | |||
| 12181 | /** | ||
| 12182 | * Checks if `value` is `undefined`. | ||
| 12183 | * | ||
| 12184 | * @static | ||
| 12185 | * @since 0.1.0 | ||
| 12186 | * @memberOf _ | ||
| 12187 | * @category Lang | ||
| 12188 |      * @param {*} value The value to check. | ||
| 12189 |      * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`. | ||
| 12190 | * @example | ||
| 12191 | * | ||
| 12192 | * _.isUndefined(void 0); | ||
| 12193 | * // => true | ||
| 12194 | * | ||
| 12195 | * _.isUndefined(null); | ||
| 12196 | * // => false | ||
| 12197 | */ | ||
| 12198 |     function isUndefined(value) { | ||
| 12199 | return value === undefined; | ||
| 12200 | } | ||
| 12201 | |||
| 12202 | /** | ||
| 12203 | * Checks if `value` is classified as a `WeakMap` object. | ||
| 12204 | * | ||
| 12205 | * @static | ||
| 12206 | * @memberOf _ | ||
| 12207 | * @since 4.3.0 | ||
| 12208 | * @category Lang | ||
| 12209 |      * @param {*} value The value to check. | ||
| 12210 |      * @returns {boolean} Returns `true` if `value` is a weak map, else `false`. | ||
| 12211 | * @example | ||
| 12212 | * | ||
| 12213 | * _.isWeakMap(new WeakMap); | ||
| 12214 | * // => true | ||
| 12215 | * | ||
| 12216 | * _.isWeakMap(new Map); | ||
| 12217 | * // => false | ||
| 12218 | */ | ||
| 12219 |     function isWeakMap(value) { | ||
| 12220 | return isObjectLike(value) && getTag(value) == weakMapTag; | ||
| 12221 | } | ||
| 12222 | |||
| 12223 | /** | ||
| 12224 | * Checks if `value` is classified as a `WeakSet` object. | ||
| 12225 | * | ||
| 12226 | * @static | ||
| 12227 | * @memberOf _ | ||
| 12228 | * @since 4.3.0 | ||
| 12229 | * @category Lang | ||
| 12230 |      * @param {*} value The value to check. | ||
| 12231 |      * @returns {boolean} Returns `true` if `value` is a weak set, else `false`. | ||
| 12232 | * @example | ||
| 12233 | * | ||
| 12234 | * _.isWeakSet(new WeakSet); | ||
| 12235 | * // => true | ||
| 12236 | * | ||
| 12237 | * _.isWeakSet(new Set); | ||
| 12238 | * // => false | ||
| 12239 | */ | ||
| 12240 |     function isWeakSet(value) { | ||
| 12241 | return isObjectLike(value) && baseGetTag(value) == weakSetTag; | ||
| 12242 | } | ||
| 12243 | |||
| 12244 | /** | ||
| 12245 | * Checks if `value` is less than `other`. | ||
| 12246 | * | ||
| 12247 | * @static | ||
| 12248 | * @memberOf _ | ||
| 12249 | * @since 3.9.0 | ||
| 12250 | * @category Lang | ||
| 12251 |      * @param {*} value The value to compare. | ||
| 12252 |      * @param {*} other The other value to compare. | ||
| 12253 |      * @returns {boolean} Returns `true` if `value` is less than `other`, | ||
| 12254 | * else `false`. | ||
| 12255 | * @see _.gt | ||
| 12256 | * @example | ||
| 12257 | * | ||
| 12258 | * _.lt(1, 3); | ||
| 12259 | * // => true | ||
| 12260 | * | ||
| 12261 | * _.lt(3, 3); | ||
| 12262 | * // => false | ||
| 12263 | * | ||
| 12264 | * _.lt(3, 1); | ||
| 12265 | * // => false | ||
| 12266 | */ | ||
| 12267 | var lt = createRelationalOperation(baseLt); | ||
| 12268 | |||
| 12269 | /** | ||
| 12270 | * Checks if `value` is less than or equal to `other`. | ||
| 12271 | * | ||
| 12272 | * @static | ||
| 12273 | * @memberOf _ | ||
| 12274 | * @since 3.9.0 | ||
| 12275 | * @category Lang | ||
| 12276 |      * @param {*} value The value to compare. | ||
| 12277 |      * @param {*} other The other value to compare. | ||
| 12278 |      * @returns {boolean} Returns `true` if `value` is less than or equal to | ||
| 12279 | * `other`, else `false`. | ||
| 12280 | * @see _.gte | ||
| 12281 | * @example | ||
| 12282 | * | ||
| 12283 | * _.lte(1, 3); | ||
| 12284 | * // => true | ||
| 12285 | * | ||
| 12286 | * _.lte(3, 3); | ||
| 12287 | * // => true | ||
| 12288 | * | ||
| 12289 | * _.lte(3, 1); | ||
| 12290 | * // => false | ||
| 12291 | */ | ||
| 12292 |     var lte = createRelationalOperation(function(value, other) { | ||
| 12293 | return value <= other; | ||
| 12294 | }); | ||
| 12295 | |||
| 12296 | /** | ||
| 12297 | * Converts `value` to an array. | ||
| 12298 | * | ||
| 12299 | * @static | ||
| 12300 | * @since 0.1.0 | ||
| 12301 | * @memberOf _ | ||
| 12302 | * @category Lang | ||
| 12303 |      * @param {*} value The value to convert. | ||
| 12304 |      * @returns {Array} Returns the converted array. | ||
| 12305 | * @example | ||
| 12306 | * | ||
| 12307 |      * _.toArray({ 'a': 1, 'b': 2 }); | ||
| 12308 | * // => [1, 2] | ||
| 12309 | * | ||
| 12310 |      * _.toArray('abc'); | ||
| 12311 | * // => ['a', 'b', 'c'] | ||
| 12312 | * | ||
| 12313 | * _.toArray(1); | ||
| 12314 | * // => [] | ||
| 12315 | * | ||
| 12316 | * _.toArray(null); | ||
| 12317 | * // => [] | ||
| 12318 | */ | ||
| 12319 |     function toArray(value) { | ||
| 12320 |       if (!value) { | ||
| 12321 | return []; | ||
| 12322 | } | ||
| 12323 |       if (isArrayLike(value)) { | ||
| 12324 | return isString(value) ? stringToArray(value) : copyArray(value); | ||
| 12325 | } | ||
| 12326 |       if (symIterator && value[symIterator]) { | ||
| 12327 | return iteratorToArray(value[symIterator]()); | ||
| 12328 | } | ||
| 12329 | var tag = getTag(value), | ||
| 12330 | func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values); | ||
| 12331 | |||
| 12332 | return func(value); | ||
| 12333 | } | ||
| 12334 | |||
| 12335 | /** | ||
| 12336 | * Converts `value` to a finite number. | ||
| 12337 | * | ||
| 12338 | * @static | ||
| 12339 | * @memberOf _ | ||
| 12340 | * @since 4.12.0 | ||
| 12341 | * @category Lang | ||
| 12342 |      * @param {*} value The value to convert. | ||
| 12343 |      * @returns {number} Returns the converted number. | ||
| 12344 | * @example | ||
| 12345 | * | ||
| 12346 | * _.toFinite(3.2); | ||
| 12347 | * // => 3.2 | ||
| 12348 | * | ||
| 12349 | * _.toFinite(Number.MIN_VALUE); | ||
| 12350 | * // => 5e-324 | ||
| 12351 | * | ||
| 12352 | * _.toFinite(Infinity); | ||
| 12353 | * // => 1.7976931348623157e+308 | ||
| 12354 | * | ||
| 12355 |      * _.toFinite('3.2'); | ||
| 12356 | * // => 3.2 | ||
| 12357 | */ | ||
| 12358 |     function toFinite(value) { | ||
| 12359 |       if (!value) { | ||
| 12360 | return value === 0 ? value : 0; | ||
| 12361 | } | ||
| 12362 | value = toNumber(value); | ||
| 12363 |       if (value === INFINITY || value === -INFINITY) { | ||
| 12364 | var sign = (value < 0 ? -1 : 1); | ||
| 12365 | return sign * MAX_INTEGER; | ||
| 12366 | } | ||
| 12367 | return value === value ? value : 0; | ||
| 12368 | } | ||
| 12369 | |||
| 12370 | /** | ||
| 12371 | * Converts `value` to an integer. | ||
| 12372 | * | ||
| 12373 | * **Note:** This method is loosely based on | ||
| 12374 | * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger). | ||
| 12375 | * | ||
| 12376 | * @static | ||
| 12377 | * @memberOf _ | ||
| 12378 | * @since 4.0.0 | ||
| 12379 | * @category Lang | ||
| 12380 |      * @param {*} value The value to convert. | ||
| 12381 |      * @returns {number} Returns the converted integer. | ||
| 12382 | * @example | ||
| 12383 | * | ||
| 12384 | * _.toInteger(3.2); | ||
| 12385 | * // => 3 | ||
| 12386 | * | ||
| 12387 | * _.toInteger(Number.MIN_VALUE); | ||
| 12388 | * // => 0 | ||
| 12389 | * | ||
| 12390 | * _.toInteger(Infinity); | ||
| 12391 | * // => 1.7976931348623157e+308 | ||
| 12392 | * | ||
| 12393 |      * _.toInteger('3.2'); | ||
| 12394 | * // => 3 | ||
| 12395 | */ | ||
| 12396 |     function toInteger(value) { | ||
| 12397 | var result = toFinite(value), | ||
| 12398 | remainder = result % 1; | ||
| 12399 | |||
| 12400 | return result === result ? (remainder ? result - remainder : result) : 0; | ||
| 12401 | } | ||
| 12402 | |||
| 12403 | /** | ||
| 12404 | * Converts `value` to an integer suitable for use as the length of an | ||
| 12405 | * array-like object. | ||
| 12406 | * | ||
| 12407 | * **Note:** This method is based on | ||
| 12408 | * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength). | ||
| 12409 | * | ||
| 12410 | * @static | ||
| 12411 | * @memberOf _ | ||
| 12412 | * @since 4.0.0 | ||
| 12413 | * @category Lang | ||
| 12414 |      * @param {*} value The value to convert. | ||
| 12415 |      * @returns {number} Returns the converted integer. | ||
| 12416 | * @example | ||
| 12417 | * | ||
| 12418 | * _.toLength(3.2); | ||
| 12419 | * // => 3 | ||
| 12420 | * | ||
| 12421 | * _.toLength(Number.MIN_VALUE); | ||
| 12422 | * // => 0 | ||
| 12423 | * | ||
| 12424 | * _.toLength(Infinity); | ||
| 12425 | * // => 4294967295 | ||
| 12426 | * | ||
| 12427 |      * _.toLength('3.2'); | ||
| 12428 | * // => 3 | ||
| 12429 | */ | ||
| 12430 |     function toLength(value) { | ||
| 12431 | return value ? baseClamp(toInteger(value), 0, MAX_ARRAY_LENGTH) : 0; | ||
| 12432 | } | ||
| 12433 | |||
| 12434 | /** | ||
| 12435 | * Converts `value` to a number. | ||
| 12436 | * | ||
| 12437 | * @static | ||
| 12438 | * @memberOf _ | ||
| 12439 | * @since 4.0.0 | ||
| 12440 | * @category Lang | ||
| 12441 |      * @param {*} value The value to process. | ||
| 12442 |      * @returns {number} Returns the number. | ||
| 12443 | * @example | ||
| 12444 | * | ||
| 12445 | * _.toNumber(3.2); | ||
| 12446 | * // => 3.2 | ||
| 12447 | * | ||
| 12448 | * _.toNumber(Number.MIN_VALUE); | ||
| 12449 | * // => 5e-324 | ||
| 12450 | * | ||
| 12451 | * _.toNumber(Infinity); | ||
| 12452 | * // => Infinity | ||
| 12453 | * | ||
| 12454 |      * _.toNumber('3.2'); | ||
| 12455 | * // => 3.2 | ||
| 12456 | */ | ||
| 12457 |     function toNumber(value) { | ||
| 12458 |       if (typeof value == 'number') { | ||
| 12459 | return value; | ||
| 12460 | } | ||
| 12461 |       if (isSymbol(value)) { | ||
| 12462 | return NAN; | ||
| 12463 | } | ||
| 12464 |       if (isObject(value)) { | ||
| 12465 | var other = typeof value.valueOf == 'function' ? value.valueOf() : value; | ||
| 12466 | value = isObject(other) ? (other + '') : other; | ||
| 12467 | } | ||
| 12468 |       if (typeof value != 'string') { | ||
| 12469 | return value === 0 ? value : +value; | ||
| 12470 | } | ||
| 12471 | value = value.replace(reTrim, ''); | ||
| 12472 | var isBinary = reIsBinary.test(value); | ||
| 12473 | return (isBinary || reIsOctal.test(value)) | ||
| 12474 | ? freeParseInt(value.slice(2), isBinary ? 2 : 8) | ||
| 12475 | : (reIsBadHex.test(value) ? NAN : +value); | ||
| 12476 | } | ||
| 12477 | |||
| 12478 | /** | ||
| 12479 | * Converts `value` to a plain object flattening inherited enumerable string | ||
| 12480 | * keyed properties of `value` to own properties of the plain object. | ||
| 12481 | * | ||
| 12482 | * @static | ||
| 12483 | * @memberOf _ | ||
| 12484 | * @since 3.0.0 | ||
| 12485 | * @category Lang | ||
| 12486 |      * @param {*} value The value to convert. | ||
| 12487 |      * @returns {Object} Returns the converted plain object. | ||
| 12488 | * @example | ||
| 12489 | * | ||
| 12490 |      * function Foo() { | ||
| 12491 | * this.b = 2; | ||
| 12492 | * } | ||
| 12493 | * | ||
| 12494 | * Foo.prototype.c = 3; | ||
| 12495 | * | ||
| 12496 |      * _.assign({ 'a': 1 }, new Foo); | ||
| 12497 |      * // => { 'a': 1, 'b': 2 } | ||
| 12498 | * | ||
| 12499 |      * _.assign({ 'a': 1 }, _.toPlainObject(new Foo)); | ||
| 12500 |      * // => { 'a': 1, 'b': 2, 'c': 3 } | ||
| 12501 | */ | ||
| 12502 |     function toPlainObject(value) { | ||
| 12503 | return copyObject(value, keysIn(value)); | ||
| 12504 | } | ||
| 12505 | |||
| 12506 | /** | ||
| 12507 | * Converts `value` to a safe integer. A safe integer can be compared and | ||
| 12508 | * represented correctly. | ||
| 12509 | * | ||
| 12510 | * @static | ||
| 12511 | * @memberOf _ | ||
| 12512 | * @since 4.0.0 | ||
| 12513 | * @category Lang | ||
| 12514 |      * @param {*} value The value to convert. | ||
| 12515 |      * @returns {number} Returns the converted integer. | ||
| 12516 | * @example | ||
| 12517 | * | ||
| 12518 | * _.toSafeInteger(3.2); | ||
| 12519 | * // => 3 | ||
| 12520 | * | ||
| 12521 | * _.toSafeInteger(Number.MIN_VALUE); | ||
| 12522 | * // => 0 | ||
| 12523 | * | ||
| 12524 | * _.toSafeInteger(Infinity); | ||
| 12525 | * // => 9007199254740991 | ||
| 12526 | * | ||
| 12527 |      * _.toSafeInteger('3.2'); | ||
| 12528 | * // => 3 | ||
| 12529 | */ | ||
| 12530 |     function toSafeInteger(value) { | ||
| 12531 | return value | ||
| 12532 | ? baseClamp(toInteger(value), -MAX_SAFE_INTEGER, MAX_SAFE_INTEGER) | ||
| 12533 | : (value === 0 ? value : 0); | ||
| 12534 | } | ||
| 12535 | |||
| 12536 | /** | ||
| 12537 | * Converts `value` to a string. An empty string is returned for `null` | ||
| 12538 | * and `undefined` values. The sign of `-0` is preserved. | ||
| 12539 | * | ||
| 12540 | * @static | ||
| 12541 | * @memberOf _ | ||
| 12542 | * @since 4.0.0 | ||
| 12543 | * @category Lang | ||
| 12544 |      * @param {*} value The value to convert. | ||
| 12545 |      * @returns {string} Returns the converted string. | ||
| 12546 | * @example | ||
| 12547 | * | ||
| 12548 | * _.toString(null); | ||
| 12549 | * // => '' | ||
| 12550 | * | ||
| 12551 | * _.toString(-0); | ||
| 12552 | * // => '-0' | ||
| 12553 | * | ||
| 12554 | * _.toString([1, 2, 3]); | ||
| 12555 | * // => '1,2,3' | ||
| 12556 | */ | ||
| 12557 |     function toString(value) { | ||
| 12558 | return value == null ? '' : baseToString(value); | ||
| 12559 | } | ||
| 12560 | |||
| 12561 | /*------------------------------------------------------------------------*/ | ||
| 12562 | |||
| 12563 | /** | ||
| 12564 | * Assigns own enumerable string keyed properties of source objects to the | ||
| 12565 | * destination object. Source objects are applied from left to right. | ||
| 12566 | * Subsequent sources overwrite property assignments of previous sources. | ||
| 12567 | * | ||
| 12568 | * **Note:** This method mutates `object` and is loosely based on | ||
| 12569 | * [`Object.assign`](https://mdn.io/Object/assign). | ||
| 12570 | * | ||
| 12571 | * @static | ||
| 12572 | * @memberOf _ | ||
| 12573 | * @since 0.10.0 | ||
| 12574 | * @category Object | ||
| 12575 |      * @param {Object} object The destination object. | ||
| 12576 |      * @param {...Object} [sources] The source objects. | ||
| 12577 |      * @returns {Object} Returns `object`. | ||
| 12578 | * @see _.assignIn | ||
| 12579 | * @example | ||
| 12580 | * | ||
| 12581 |      * function Foo() { | ||
| 12582 | * this.a = 1; | ||
| 12583 | * } | ||
| 12584 | * | ||
| 12585 |      * function Bar() { | ||
| 12586 | * this.c = 3; | ||
| 12587 | * } | ||
| 12588 | * | ||
| 12589 | * Foo.prototype.b = 2; | ||
| 12590 | * Bar.prototype.d = 4; | ||
| 12591 | * | ||
| 12592 |      * _.assign({ 'a': 0 }, new Foo, new Bar); | ||
| 12593 |      * // => { 'a': 1, 'c': 3 } | ||
| 12594 | */ | ||
| 12595 |     var assign = createAssigner(function(object, source) { | ||
| 12596 |       if (isPrototype(source) || isArrayLike(source)) { | ||
| 12597 | copyObject(source, keys(source), object); | ||
| 12598 | return; | ||
| 12599 | } | ||
| 12600 |       for (var key in source) { | ||
| 12601 |         if (hasOwnProperty.call(source, key)) { | ||
| 12602 | assignValue(object, key, source[key]); | ||
| 12603 | } | ||
| 12604 | } | ||
| 12605 | }); | ||
| 12606 | |||
| 12607 | /** | ||
| 12608 | * This method is like `_.assign` except that it iterates over own and | ||
| 12609 | * inherited source properties. | ||
| 12610 | * | ||
| 12611 | * **Note:** This method mutates `object`. | ||
| 12612 | * | ||
| 12613 | * @static | ||
| 12614 | * @memberOf _ | ||
| 12615 | * @since 4.0.0 | ||
| 12616 | * @alias extend | ||
| 12617 | * @category Object | ||
| 12618 |      * @param {Object} object The destination object. | ||
| 12619 |      * @param {...Object} [sources] The source objects. | ||
| 12620 |      * @returns {Object} Returns `object`. | ||
| 12621 | * @see _.assign | ||
| 12622 | * @example | ||
| 12623 | * | ||
| 12624 |      * function Foo() { | ||
| 12625 | * this.a = 1; | ||
| 12626 | * } | ||
| 12627 | * | ||
| 12628 |      * function Bar() { | ||
| 12629 | * this.c = 3; | ||
| 12630 | * } | ||
| 12631 | * | ||
| 12632 | * Foo.prototype.b = 2; | ||
| 12633 | * Bar.prototype.d = 4; | ||
| 12634 | * | ||
| 12635 |      * _.assignIn({ 'a': 0 }, new Foo, new Bar); | ||
| 12636 |      * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 } | ||
| 12637 | */ | ||
| 12638 |     var assignIn = createAssigner(function(object, source) { | ||
| 12639 | copyObject(source, keysIn(source), object); | ||
| 12640 | }); | ||
| 12641 | |||
| 12642 | /** | ||
| 12643 | * This method is like `_.assignIn` except that it accepts `customizer` | ||
| 12644 | * which is invoked to produce the assigned values. If `customizer` returns | ||
| 12645 | * `undefined`, assignment is handled by the method instead. The `customizer` | ||
| 12646 | * is invoked with five arguments: (objValue, srcValue, key, object, source). | ||
| 12647 | * | ||
| 12648 | * **Note:** This method mutates `object`. | ||
| 12649 | * | ||
| 12650 | * @static | ||
| 12651 | * @memberOf _ | ||
| 12652 | * @since 4.0.0 | ||
| 12653 | * @alias extendWith | ||
| 12654 | * @category Object | ||
| 12655 |      * @param {Object} object The destination object. | ||
| 12656 |      * @param {...Object} sources The source objects. | ||
| 12657 |      * @param {Function} [customizer] The function to customize assigned values. | ||
| 12658 |      * @returns {Object} Returns `object`. | ||
| 12659 | * @see _.assignWith | ||
| 12660 | * @example | ||
| 12661 | * | ||
| 12662 |      * function customizer(objValue, srcValue) { | ||
| 12663 | * return _.isUndefined(objValue) ? srcValue : objValue; | ||
| 12664 | * } | ||
| 12665 | * | ||
| 12666 | * var defaults = _.partialRight(_.assignInWith, customizer); | ||
| 12667 | * | ||
| 12668 |      * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 }); | ||
| 12669 |      * // => { 'a': 1, 'b': 2 } | ||
| 12670 | */ | ||
| 12671 |     var assignInWith = createAssigner(function(object, source, srcIndex, customizer) { | ||
| 12672 | copyObject(source, keysIn(source), object, customizer); | ||
| 12673 | }); | ||
| 12674 | |||
| 12675 | /** | ||
| 12676 | * This method is like `_.assign` except that it accepts `customizer` | ||
| 12677 | * which is invoked to produce the assigned values. If `customizer` returns | ||
| 12678 | * `undefined`, assignment is handled by the method instead. The `customizer` | ||
| 12679 | * is invoked with five arguments: (objValue, srcValue, key, object, source). | ||
| 12680 | * | ||
| 12681 | * **Note:** This method mutates `object`. | ||
| 12682 | * | ||
| 12683 | * @static | ||
| 12684 | * @memberOf _ | ||
| 12685 | * @since 4.0.0 | ||
| 12686 | * @category Object | ||
| 12687 |      * @param {Object} object The destination object. | ||
| 12688 |      * @param {...Object} sources The source objects. | ||
| 12689 |      * @param {Function} [customizer] The function to customize assigned values. | ||
| 12690 |      * @returns {Object} Returns `object`. | ||
| 12691 | * @see _.assignInWith | ||
| 12692 | * @example | ||
| 12693 | * | ||
| 12694 |      * function customizer(objValue, srcValue) { | ||
| 12695 | * return _.isUndefined(objValue) ? srcValue : objValue; | ||
| 12696 | * } | ||
| 12697 | * | ||
| 12698 | * var defaults = _.partialRight(_.assignWith, customizer); | ||
| 12699 | * | ||
| 12700 |      * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 }); | ||
| 12701 |      * // => { 'a': 1, 'b': 2 } | ||
| 12702 | */ | ||
| 12703 |     var assignWith = createAssigner(function(object, source, srcIndex, customizer) { | ||
| 12704 | copyObject(source, keys(source), object, customizer); | ||
| 12705 | }); | ||
| 12706 | |||
| 12707 | /** | ||
| 12708 | * Creates an array of values corresponding to `paths` of `object`. | ||
| 12709 | * | ||
| 12710 | * @static | ||
| 12711 | * @memberOf _ | ||
| 12712 | * @since 1.0.0 | ||
| 12713 | * @category Object | ||
| 12714 |      * @param {Object} object The object to iterate over. | ||
| 12715 |      * @param {...(string|string[])} [paths] The property paths to pick. | ||
| 12716 |      * @returns {Array} Returns the picked values. | ||
| 12717 | * @example | ||
| 12718 | * | ||
| 12719 |      * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] }; | ||
| 12720 | * | ||
| 12721 | * _.at(object, ['a[0].b.c', 'a[1]']); | ||
| 12722 | * // => [3, 4] | ||
| 12723 | */ | ||
| 12724 | var at = flatRest(baseAt); | ||
| 12725 | |||
| 12726 | /** | ||
| 12727 | * Creates an object that inherits from the `prototype` object. If a | ||
| 12728 | * `properties` object is given, its own enumerable string keyed properties | ||
| 12729 | * are assigned to the created object. | ||
| 12730 | * | ||
| 12731 | * @static | ||
| 12732 | * @memberOf _ | ||
| 12733 | * @since 2.3.0 | ||
| 12734 | * @category Object | ||
| 12735 |      * @param {Object} prototype The object to inherit from. | ||
| 12736 |      * @param {Object} [properties] The properties to assign to the object. | ||
| 12737 |      * @returns {Object} Returns the new object. | ||
| 12738 | * @example | ||
| 12739 | * | ||
| 12740 |      * function Shape() { | ||
| 12741 | * this.x = 0; | ||
| 12742 | * this.y = 0; | ||
| 12743 | * } | ||
| 12744 | * | ||
| 12745 |      * function Circle() { | ||
| 12746 | * Shape.call(this); | ||
| 12747 | * } | ||
| 12748 | * | ||
| 12749 |      * Circle.prototype = _.create(Shape.prototype, { | ||
| 12750 | * 'constructor': Circle | ||
| 12751 | * }); | ||
| 12752 | * | ||
| 12753 | * var circle = new Circle; | ||
| 12754 | * circle instanceof Circle; | ||
| 12755 | * // => true | ||
| 12756 | * | ||
| 12757 | * circle instanceof Shape; | ||
| 12758 | * // => true | ||
| 12759 | */ | ||
| 12760 |     function create(prototype, properties) { | ||
| 12761 | var result = baseCreate(prototype); | ||
| 12762 | return properties == null ? result : baseAssign(result, properties); | ||
| 12763 | } | ||
| 12764 | |||
| 12765 | /** | ||
| 12766 | * Assigns own and inherited enumerable string keyed properties of source | ||
| 12767 | * objects to the destination object for all destination properties that | ||
| 12768 | * resolve to `undefined`. Source objects are applied from left to right. | ||
| 12769 | * Once a property is set, additional values of the same property are ignored. | ||
| 12770 | * | ||
| 12771 | * **Note:** This method mutates `object`. | ||
| 12772 | * | ||
| 12773 | * @static | ||
| 12774 | * @since 0.1.0 | ||
| 12775 | * @memberOf _ | ||
| 12776 | * @category Object | ||
| 12777 |      * @param {Object} object The destination object. | ||
| 12778 |      * @param {...Object} [sources] The source objects. | ||
| 12779 |      * @returns {Object} Returns `object`. | ||
| 12780 | * @see _.defaultsDeep | ||
| 12781 | * @example | ||
| 12782 | * | ||
| 12783 |      * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 }); | ||
| 12784 |      * // => { 'a': 1, 'b': 2 } | ||
| 12785 | */ | ||
| 12786 |     var defaults = baseRest(function(object, sources) { | ||
| 12787 | object = Object(object); | ||
| 12788 | |||
| 12789 | var index = -1; | ||
| 12790 | var length = sources.length; | ||
| 12791 | var guard = length > 2 ? sources[2] : undefined; | ||
| 12792 | |||
| 12793 |       if (guard && isIterateeCall(sources[0], sources[1], guard)) { | ||
| 12794 | length = 1; | ||
| 12795 | } | ||
| 12796 | |||
| 12797 |       while (++index < length) { | ||
| 12798 | var source = sources[index]; | ||
| 12799 | var props = keysIn(source); | ||
| 12800 | var propsIndex = -1; | ||
| 12801 | var propsLength = props.length; | ||
| 12802 | |||
| 12803 |         while (++propsIndex < propsLength) { | ||
| 12804 | var key = props[propsIndex]; | ||
| 12805 | var value = object[key]; | ||
| 12806 | |||
| 12807 | if (value === undefined || | ||
| 12808 |               (eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) { | ||
| 12809 | object[key] = source[key]; | ||
| 12810 | } | ||
| 12811 | } | ||
| 12812 | } | ||
| 12813 | |||
| 12814 | return object; | ||
| 12815 | }); | ||
| 12816 | |||
| 12817 | /** | ||
| 12818 | * This method is like `_.defaults` except that it recursively assigns | ||
| 12819 | * default properties. | ||
| 12820 | * | ||
| 12821 | * **Note:** This method mutates `object`. | ||
| 12822 | * | ||
| 12823 | * @static | ||
| 12824 | * @memberOf _ | ||
| 12825 | * @since 3.10.0 | ||
| 12826 | * @category Object | ||
| 12827 |      * @param {Object} object The destination object. | ||
| 12828 |      * @param {...Object} [sources] The source objects. | ||
| 12829 |      * @returns {Object} Returns `object`. | ||
| 12830 | * @see _.defaults | ||
| 12831 | * @example | ||
| 12832 | * | ||
| 12833 |      * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } }); | ||
| 12834 |      * // => { 'a': { 'b': 2, 'c': 3 } } | ||
| 12835 | */ | ||
| 12836 |     var defaultsDeep = baseRest(function(args) { | ||
| 12837 | args.push(undefined, customDefaultsMerge); | ||
| 12838 | return apply(mergeWith, undefined, args); | ||
| 12839 | }); | ||
| 12840 | |||
| 12841 | /** | ||
| 12842 | * This method is like `_.find` except that it returns the key of the first | ||
| 12843 | * element `predicate` returns truthy for instead of the element itself. | ||
| 12844 | * | ||
| 12845 | * @static | ||
| 12846 | * @memberOf _ | ||
| 12847 | * @since 1.1.0 | ||
| 12848 | * @category Object | ||
| 12849 |      * @param {Object} object The object to inspect. | ||
| 12850 |      * @param {Function} [predicate=_.identity] The function invoked per iteration. | ||
| 12851 |      * @returns {string|undefined} Returns the key of the matched element, | ||
| 12852 | * else `undefined`. | ||
| 12853 | * @example | ||
| 12854 | * | ||
| 12855 |      * var users = { | ||
| 12856 |      *   'barney':  { 'age': 36, 'active': true }, | ||
| 12857 |      *   'fred':    { 'age': 40, 'active': false }, | ||
| 12858 |      *   'pebbles': { 'age': 1,  'active': true } | ||
| 12859 | * }; | ||
| 12860 | * | ||
| 12861 |      * _.findKey(users, function(o) { return o.age < 40; }); | ||
| 12862 | * // => 'barney' (iteration order is not guaranteed) | ||
| 12863 | * | ||
| 12864 | * // The `_.matches` iteratee shorthand. | ||
| 12865 |      * _.findKey(users, { 'age': 1, 'active': true }); | ||
| 12866 | * // => 'pebbles' | ||
| 12867 | * | ||
| 12868 | * // The `_.matchesProperty` iteratee shorthand. | ||
| 12869 | * _.findKey(users, ['active', false]); | ||
| 12870 | * // => 'fred' | ||
| 12871 | * | ||
| 12872 | * // The `_.property` iteratee shorthand. | ||
| 12873 | * _.findKey(users, 'active'); | ||
| 12874 | * // => 'barney' | ||
| 12875 | */ | ||
| 12876 |     function findKey(object, predicate) { | ||
| 12877 | return baseFindKey(object, getIteratee(predicate, 3), baseForOwn); | ||
| 12878 | } | ||
| 12879 | |||
| 12880 | /** | ||
| 12881 | * This method is like `_.findKey` except that it iterates over elements of | ||
| 12882 | * a collection in the opposite order. | ||
| 12883 | * | ||
| 12884 | * @static | ||
| 12885 | * @memberOf _ | ||
| 12886 | * @since 2.0.0 | ||
| 12887 | * @category Object | ||
| 12888 |      * @param {Object} object The object to inspect. | ||
| 12889 |      * @param {Function} [predicate=_.identity] The function invoked per iteration. | ||
| 12890 |      * @returns {string|undefined} Returns the key of the matched element, | ||
| 12891 | * else `undefined`. | ||
| 12892 | * @example | ||
| 12893 | * | ||
| 12894 |      * var users = { | ||
| 12895 |      *   'barney':  { 'age': 36, 'active': true }, | ||
| 12896 |      *   'fred':    { 'age': 40, 'active': false }, | ||
| 12897 |      *   'pebbles': { 'age': 1,  'active': true } | ||
| 12898 | * }; | ||
| 12899 | * | ||
| 12900 |      * _.findLastKey(users, function(o) { return o.age < 40; }); | ||
| 12901 | * // => returns 'pebbles' assuming `_.findKey` returns 'barney' | ||
| 12902 | * | ||
| 12903 | * // The `_.matches` iteratee shorthand. | ||
| 12904 |      * _.findLastKey(users, { 'age': 36, 'active': true }); | ||
| 12905 | * // => 'barney' | ||
| 12906 | * | ||
| 12907 | * // The `_.matchesProperty` iteratee shorthand. | ||
| 12908 | * _.findLastKey(users, ['active', false]); | ||
| 12909 | * // => 'fred' | ||
| 12910 | * | ||
| 12911 | * // The `_.property` iteratee shorthand. | ||
| 12912 | * _.findLastKey(users, 'active'); | ||
| 12913 | * // => 'pebbles' | ||
| 12914 | */ | ||
| 12915 |     function findLastKey(object, predicate) { | ||
| 12916 | return baseFindKey(object, getIteratee(predicate, 3), baseForOwnRight); | ||
| 12917 | } | ||
| 12918 | |||
| 12919 | /** | ||
| 12920 | * Iterates over own and inherited enumerable string keyed properties of an | ||
| 12921 | * object and invokes `iteratee` for each property. The iteratee is invoked | ||
| 12922 | * with three arguments: (value, key, object). Iteratee functions may exit | ||
| 12923 | * iteration early by explicitly returning `false`. | ||
| 12924 | * | ||
| 12925 | * @static | ||
| 12926 | * @memberOf _ | ||
| 12927 | * @since 0.3.0 | ||
| 12928 | * @category Object | ||
| 12929 |      * @param {Object} object The object to iterate over. | ||
| 12930 |      * @param {Function} [iteratee=_.identity] The function invoked per iteration. | ||
| 12931 |      * @returns {Object} Returns `object`. | ||
| 12932 | * @see _.forInRight | ||
| 12933 | * @example | ||
| 12934 | * | ||
| 12935 |      * function Foo() { | ||
| 12936 | * this.a = 1; | ||
| 12937 | * this.b = 2; | ||
| 12938 | * } | ||
| 12939 | * | ||
| 12940 | * Foo.prototype.c = 3; | ||
| 12941 | * | ||
| 12942 |      * _.forIn(new Foo, function(value, key) { | ||
| 12943 | * console.log(key); | ||
| 12944 | * }); | ||
| 12945 | * // => Logs 'a', 'b', then 'c' (iteration order is not guaranteed). | ||
| 12946 | */ | ||
| 12947 |     function forIn(object, iteratee) { | ||
| 12948 | return object == null | ||
| 12949 | ? object | ||
| 12950 | : baseFor(object, getIteratee(iteratee, 3), keysIn); | ||
| 12951 | } | ||
| 12952 | |||
| 12953 | /** | ||
| 12954 | * This method is like `_.forIn` except that it iterates over properties of | ||
| 12955 | * `object` in the opposite order. | ||
| 12956 | * | ||
| 12957 | * @static | ||
| 12958 | * @memberOf _ | ||
| 12959 | * @since 2.0.0 | ||
| 12960 | * @category Object | ||
| 12961 |      * @param {Object} object The object to iterate over. | ||
| 12962 |      * @param {Function} [iteratee=_.identity] The function invoked per iteration. | ||
| 12963 |      * @returns {Object} Returns `object`. | ||
| 12964 | * @see _.forIn | ||
| 12965 | * @example | ||
| 12966 | * | ||
| 12967 |      * function Foo() { | ||
| 12968 | * this.a = 1; | ||
| 12969 | * this.b = 2; | ||
| 12970 | * } | ||
| 12971 | * | ||
| 12972 | * Foo.prototype.c = 3; | ||
| 12973 | * | ||
| 12974 |      * _.forInRight(new Foo, function(value, key) { | ||
| 12975 | * console.log(key); | ||
| 12976 | * }); | ||
| 12977 | * // => Logs 'c', 'b', then 'a' assuming `_.forIn` logs 'a', 'b', then 'c'. | ||
| 12978 | */ | ||
| 12979 |     function forInRight(object, iteratee) { | ||
| 12980 | return object == null | ||
| 12981 | ? object | ||
| 12982 | : baseForRight(object, getIteratee(iteratee, 3), keysIn); | ||
| 12983 | } | ||
| 12984 | |||
| 12985 | /** | ||
| 12986 | * Iterates over own enumerable string keyed properties of an object and | ||
| 12987 | * invokes `iteratee` for each property. The iteratee is invoked with three | ||
| 12988 | * arguments: (value, key, object). Iteratee functions may exit iteration | ||
| 12989 | * early by explicitly returning `false`. | ||
| 12990 | * | ||
| 12991 | * @static | ||
| 12992 | * @memberOf _ | ||
| 12993 | * @since 0.3.0 | ||
| 12994 | * @category Object | ||
| 12995 |      * @param {Object} object The object to iterate over. | ||
| 12996 |      * @param {Function} [iteratee=_.identity] The function invoked per iteration. | ||
| 12997 |      * @returns {Object} Returns `object`. | ||
| 12998 | * @see _.forOwnRight | ||
| 12999 | * @example | ||
| 13000 | * | ||
| 13001 |      * function Foo() { | ||
| 13002 | * this.a = 1; | ||
| 13003 | * this.b = 2; | ||
| 13004 | * } | ||
| 13005 | * | ||
| 13006 | * Foo.prototype.c = 3; | ||
| 13007 | * | ||
| 13008 |      * _.forOwn(new Foo, function(value, key) { | ||
| 13009 | * console.log(key); | ||
| 13010 | * }); | ||
| 13011 | * // => Logs 'a' then 'b' (iteration order is not guaranteed). | ||
| 13012 | */ | ||
| 13013 |     function forOwn(object, iteratee) { | ||
| 13014 | return object && baseForOwn(object, getIteratee(iteratee, 3)); | ||
| 13015 | } | ||
| 13016 | |||
| 13017 | /** | ||
| 13018 | * This method is like `_.forOwn` except that it iterates over properties of | ||
| 13019 | * `object` in the opposite order. | ||
| 13020 | * | ||
| 13021 | * @static | ||
| 13022 | * @memberOf _ | ||
| 13023 | * @since 2.0.0 | ||
| 13024 | * @category Object | ||
| 13025 |      * @param {Object} object The object to iterate over. | ||
| 13026 |      * @param {Function} [iteratee=_.identity] The function invoked per iteration. | ||
| 13027 |      * @returns {Object} Returns `object`. | ||
| 13028 | * @see _.forOwn | ||
| 13029 | * @example | ||
| 13030 | * | ||
| 13031 |      * function Foo() { | ||
| 13032 | * this.a = 1; | ||
| 13033 | * this.b = 2; | ||
| 13034 | * } | ||
| 13035 | * | ||
| 13036 | * Foo.prototype.c = 3; | ||
| 13037 | * | ||
| 13038 |      * _.forOwnRight(new Foo, function(value, key) { | ||
| 13039 | * console.log(key); | ||
| 13040 | * }); | ||
| 13041 | * // => Logs 'b' then 'a' assuming `_.forOwn` logs 'a' then 'b'. | ||
| 13042 | */ | ||
| 13043 |     function forOwnRight(object, iteratee) { | ||
| 13044 | return object && baseForOwnRight(object, getIteratee(iteratee, 3)); | ||
| 13045 | } | ||
| 13046 | |||
| 13047 | /** | ||
| 13048 | * Creates an array of function property names from own enumerable properties | ||
| 13049 | * of `object`. | ||
| 13050 | * | ||
| 13051 | * @static | ||
| 13052 | * @since 0.1.0 | ||
| 13053 | * @memberOf _ | ||
| 13054 | * @category Object | ||
| 13055 |      * @param {Object} object The object to inspect. | ||
| 13056 |      * @returns {Array} Returns the function names. | ||
| 13057 | * @see _.functionsIn | ||
| 13058 | * @example | ||
| 13059 | * | ||
| 13060 |      * function Foo() { | ||
| 13061 |      *   this.a = _.constant('a'); | ||
| 13062 |      *   this.b = _.constant('b'); | ||
| 13063 | * } | ||
| 13064 | * | ||
| 13065 |      * Foo.prototype.c = _.constant('c'); | ||
| 13066 | * | ||
| 13067 | * _.functions(new Foo); | ||
| 13068 | * // => ['a', 'b'] | ||
| 13069 | */ | ||
| 13070 |     function functions(object) { | ||
| 13071 | return object == null ? [] : baseFunctions(object, keys(object)); | ||
| 13072 | } | ||
| 13073 | |||
| 13074 | /** | ||
| 13075 | * Creates an array of function property names from own and inherited | ||
| 13076 | * enumerable properties of `object`. | ||
| 13077 | * | ||
| 13078 | * @static | ||
| 13079 | * @memberOf _ | ||
| 13080 | * @since 4.0.0 | ||
| 13081 | * @category Object | ||
| 13082 |      * @param {Object} object The object to inspect. | ||
| 13083 |      * @returns {Array} Returns the function names. | ||
| 13084 | * @see _.functions | ||
| 13085 | * @example | ||
| 13086 | * | ||
| 13087 |      * function Foo() { | ||
| 13088 |      *   this.a = _.constant('a'); | ||
| 13089 |      *   this.b = _.constant('b'); | ||
| 13090 | * } | ||
| 13091 | * | ||
| 13092 |      * Foo.prototype.c = _.constant('c'); | ||
| 13093 | * | ||
| 13094 | * _.functionsIn(new Foo); | ||
| 13095 | * // => ['a', 'b', 'c'] | ||
| 13096 | */ | ||
| 13097 |     function functionsIn(object) { | ||
| 13098 | return object == null ? [] : baseFunctions(object, keysIn(object)); | ||
| 13099 | } | ||
| 13100 | |||
| 13101 | /** | ||
| 13102 | * Gets the value at `path` of `object`. If the resolved value is | ||
| 13103 | * `undefined`, the `defaultValue` is returned in its place. | ||
| 13104 | * | ||
| 13105 | * @static | ||
| 13106 | * @memberOf _ | ||
| 13107 | * @since 3.7.0 | ||
| 13108 | * @category Object | ||
| 13109 |      * @param {Object} object The object to query. | ||
| 13110 |      * @param {Array|string} path The path of the property to get. | ||
| 13111 |      * @param {*} [defaultValue] The value returned for `undefined` resolved values. | ||
| 13112 |      * @returns {*} Returns the resolved value. | ||
| 13113 | * @example | ||
| 13114 | * | ||
| 13115 |      * var object = { 'a': [{ 'b': { 'c': 3 } }] }; | ||
| 13116 | * | ||
| 13117 | * _.get(object, 'a[0].b.c'); | ||
| 13118 | * // => 3 | ||
| 13119 | * | ||
| 13120 | * _.get(object, ['a', '0', 'b', 'c']); | ||
| 13121 | * // => 3 | ||
| 13122 | * | ||
| 13123 | * _.get(object, 'a.b.c', 'default'); | ||
| 13124 | * // => 'default' | ||
| 13125 | */ | ||
| 13126 |     function get(object, path, defaultValue) { | ||
| 13127 | var result = object == null ? undefined : baseGet(object, path); | ||
| 13128 | return result === undefined ? defaultValue : result; | ||
| 13129 | } | ||
| 13130 | |||
| 13131 | /** | ||
| 13132 | * Checks if `path` is a direct property of `object`. | ||
| 13133 | * | ||
| 13134 | * @static | ||
| 13135 | * @since 0.1.0 | ||
| 13136 | * @memberOf _ | ||
| 13137 | * @category Object | ||
| 13138 |      * @param {Object} object The object to query. | ||
| 13139 |      * @param {Array|string} path The path to check. | ||
| 13140 |      * @returns {boolean} Returns `true` if `path` exists, else `false`. | ||
| 13141 | * @example | ||
| 13142 | * | ||
| 13143 |      * var object = { 'a': { 'b': 2 } }; | ||
| 13144 |      * var other = _.create({ 'a': _.create({ 'b': 2 }) }); | ||
| 13145 | * | ||
| 13146 | * _.has(object, 'a'); | ||
| 13147 | * // => true | ||
| 13148 | * | ||
| 13149 | * _.has(object, 'a.b'); | ||
| 13150 | * // => true | ||
| 13151 | * | ||
| 13152 | * _.has(object, ['a', 'b']); | ||
| 13153 | * // => true | ||
| 13154 | * | ||
| 13155 | * _.has(other, 'a'); | ||
| 13156 | * // => false | ||
| 13157 | */ | ||
| 13158 |     function has(object, path) { | ||
| 13159 | return object != null && hasPath(object, path, baseHas); | ||
| 13160 | } | ||
| 13161 | |||
| 13162 | /** | ||
| 13163 | * Checks if `path` is a direct or inherited property of `object`. | ||
| 13164 | * | ||
| 13165 | * @static | ||
| 13166 | * @memberOf _ | ||
| 13167 | * @since 4.0.0 | ||
| 13168 | * @category Object | ||
| 13169 |      * @param {Object} object The object to query. | ||
| 13170 |      * @param {Array|string} path The path to check. | ||
| 13171 |      * @returns {boolean} Returns `true` if `path` exists, else `false`. | ||
| 13172 | * @example | ||
| 13173 | * | ||
| 13174 |      * var object = _.create({ 'a': _.create({ 'b': 2 }) }); | ||
| 13175 | * | ||
| 13176 | * _.hasIn(object, 'a'); | ||
| 13177 | * // => true | ||
| 13178 | * | ||
| 13179 | * _.hasIn(object, 'a.b'); | ||
| 13180 | * // => true | ||
| 13181 | * | ||
| 13182 | * _.hasIn(object, ['a', 'b']); | ||
| 13183 | * // => true | ||
| 13184 | * | ||
| 13185 | * _.hasIn(object, 'b'); | ||
| 13186 | * // => false | ||
| 13187 | */ | ||
| 13188 |     function hasIn(object, path) { | ||
| 13189 | return object != null && hasPath(object, path, baseHasIn); | ||
| 13190 | } | ||
| 13191 | |||
| 13192 | /** | ||
| 13193 | * Creates an object composed of the inverted keys and values of `object`. | ||
| 13194 | * If `object` contains duplicate values, subsequent values overwrite | ||
| 13195 | * property assignments of previous values. | ||
| 13196 | * | ||
| 13197 | * @static | ||
| 13198 | * @memberOf _ | ||
| 13199 | * @since 0.7.0 | ||
| 13200 | * @category Object | ||
| 13201 |      * @param {Object} object The object to invert. | ||
| 13202 |      * @returns {Object} Returns the new inverted object. | ||
| 13203 | * @example | ||
| 13204 | * | ||
| 13205 |      * var object = { 'a': 1, 'b': 2, 'c': 1 }; | ||
| 13206 | * | ||
| 13207 | * _.invert(object); | ||
| 13208 |      * // => { '1': 'c', '2': 'b' } | ||
| 13209 | */ | ||
| 13210 |     var invert = createInverter(function(result, value, key) { | ||
| 13211 | if (value != null && | ||
| 13212 |           typeof value.toString != 'function') { | ||
| 13213 | value = nativeObjectToString.call(value); | ||
| 13214 | } | ||
| 13215 | |||
| 13216 | result[value] = key; | ||
| 13217 | }, constant(identity)); | ||
| 13218 | |||
| 13219 | /** | ||
| 13220 | * This method is like `_.invert` except that the inverted object is generated | ||
| 13221 | * from the results of running each element of `object` thru `iteratee`. The | ||
| 13222 | * corresponding inverted value of each inverted key is an array of keys | ||
| 13223 | * responsible for generating the inverted value. The iteratee is invoked | ||
| 13224 | * with one argument: (value). | ||
| 13225 | * | ||
| 13226 | * @static | ||
| 13227 | * @memberOf _ | ||
| 13228 | * @since 4.1.0 | ||
| 13229 | * @category Object | ||
| 13230 |      * @param {Object} object The object to invert. | ||
| 13231 |      * @param {Function} [iteratee=_.identity] The iteratee invoked per element. | ||
| 13232 |      * @returns {Object} Returns the new inverted object. | ||
| 13233 | * @example | ||
| 13234 | * | ||
| 13235 |      * var object = { 'a': 1, 'b': 2, 'c': 1 }; | ||
| 13236 | * | ||
| 13237 | * _.invertBy(object); | ||
| 13238 |      * // => { '1': ['a', 'c'], '2': ['b'] } | ||
| 13239 | * | ||
| 13240 |      * _.invertBy(object, function(value) { | ||
| 13241 | * return 'group' + value; | ||
| 13242 | * }); | ||
| 13243 |      * // => { 'group1': ['a', 'c'], 'group2': ['b'] } | ||
| 13244 | */ | ||
| 13245 |     var invertBy = createInverter(function(result, value, key) { | ||
| 13246 | if (value != null && | ||
| 13247 |           typeof value.toString != 'function') { | ||
| 13248 | value = nativeObjectToString.call(value); | ||
| 13249 | } | ||
| 13250 | |||
| 13251 |       if (hasOwnProperty.call(result, value)) { | ||
| 13252 | result[value].push(key); | ||
| 13253 |       } else { | ||
| 13254 | result[value] = [key]; | ||
| 13255 | } | ||
| 13256 | }, getIteratee); | ||
| 13257 | |||
| 13258 | /** | ||
| 13259 | * Invokes the method at `path` of `object`. | ||
| 13260 | * | ||
| 13261 | * @static | ||
| 13262 | * @memberOf _ | ||
| 13263 | * @since 4.0.0 | ||
| 13264 | * @category Object | ||
| 13265 |      * @param {Object} object The object to query. | ||
| 13266 |      * @param {Array|string} path The path of the method to invoke. | ||
| 13267 |      * @param {...*} [args] The arguments to invoke the method with. | ||
| 13268 |      * @returns {*} Returns the result of the invoked method. | ||
| 13269 | * @example | ||
| 13270 | * | ||
| 13271 |      * var object = { 'a': [{ 'b': { 'c': [1, 2, 3, 4] } }] }; | ||
| 13272 | * | ||
| 13273 | * _.invoke(object, 'a[0].b.c.slice', 1, 3); | ||
| 13274 | * // => [2, 3] | ||
| 13275 | */ | ||
| 13276 | var invoke = baseRest(baseInvoke); | ||
| 13277 | |||
| 13278 | /** | ||
| 13279 | * Creates an array of the own enumerable property names of `object`. | ||
| 13280 | * | ||
| 13281 | * **Note:** Non-object values are coerced to objects. See the | ||
| 13282 | * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) | ||
| 13283 | * for more details. | ||
| 13284 | * | ||
| 13285 | * @static | ||
| 13286 | * @since 0.1.0 | ||
| 13287 | * @memberOf _ | ||
| 13288 | * @category Object | ||
| 13289 |      * @param {Object} object The object to query. | ||
| 13290 |      * @returns {Array} Returns the array of property names. | ||
| 13291 | * @example | ||
| 13292 | * | ||
| 13293 |      * function Foo() { | ||
| 13294 | * this.a = 1; | ||
| 13295 | * this.b = 2; | ||
| 13296 | * } | ||
| 13297 | * | ||
| 13298 | * Foo.prototype.c = 3; | ||
| 13299 | * | ||
| 13300 | * _.keys(new Foo); | ||
| 13301 | * // => ['a', 'b'] (iteration order is not guaranteed) | ||
| 13302 | * | ||
| 13303 |      * _.keys('hi'); | ||
| 13304 | * // => ['0', '1'] | ||
| 13305 | */ | ||
| 13306 |     function keys(object) { | ||
| 13307 | return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object); | ||
| 13308 | } | ||
| 13309 | |||
| 13310 | /** | ||
| 13311 | * Creates an array of the own and inherited enumerable property names of `object`. | ||
| 13312 | * | ||
| 13313 | * **Note:** Non-object values are coerced to objects. | ||
| 13314 | * | ||
| 13315 | * @static | ||
| 13316 | * @memberOf _ | ||
| 13317 | * @since 3.0.0 | ||
| 13318 | * @category Object | ||
| 13319 |      * @param {Object} object The object to query. | ||
| 13320 |      * @returns {Array} Returns the array of property names. | ||
| 13321 | * @example | ||
| 13322 | * | ||
| 13323 |      * function Foo() { | ||
| 13324 | * this.a = 1; | ||
| 13325 | * this.b = 2; | ||
| 13326 | * } | ||
| 13327 | * | ||
| 13328 | * Foo.prototype.c = 3; | ||
| 13329 | * | ||
| 13330 | * _.keysIn(new Foo); | ||
| 13331 | * // => ['a', 'b', 'c'] (iteration order is not guaranteed) | ||
| 13332 | */ | ||
| 13333 |     function keysIn(object) { | ||
| 13334 | return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object); | ||
| 13335 | } | ||
| 13336 | |||
| 13337 | /** | ||
| 13338 | * The opposite of `_.mapValues`; this method creates an object with the | ||
| 13339 | * same values as `object` and keys generated by running each own enumerable | ||
| 13340 | * string keyed property of `object` thru `iteratee`. The iteratee is invoked | ||
| 13341 | * with three arguments: (value, key, object). | ||
| 13342 | * | ||
| 13343 | * @static | ||
| 13344 | * @memberOf _ | ||
| 13345 | * @since 3.8.0 | ||
| 13346 | * @category Object | ||
| 13347 |      * @param {Object} object The object to iterate over. | ||
| 13348 |      * @param {Function} [iteratee=_.identity] The function invoked per iteration. | ||
| 13349 |      * @returns {Object} Returns the new mapped object. | ||
| 13350 | * @see _.mapValues | ||
| 13351 | * @example | ||
| 13352 | * | ||
| 13353 |      * _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) { | ||
| 13354 | * return key + value; | ||
| 13355 | * }); | ||
| 13356 |      * // => { 'a1': 1, 'b2': 2 } | ||
| 13357 | */ | ||
| 13358 |     function mapKeys(object, iteratee) { | ||
| 13359 |       var result = {}; | ||
| 13360 | iteratee = getIteratee(iteratee, 3); | ||
| 13361 | |||
| 13362 |       baseForOwn(object, function(value, key, object) { | ||
| 13363 | baseAssignValue(result, iteratee(value, key, object), value); | ||
| 13364 | }); | ||
| 13365 | return result; | ||
| 13366 | } | ||
| 13367 | |||
| 13368 | /** | ||
| 13369 | * Creates an object with the same keys as `object` and values generated | ||
| 13370 | * by running each own enumerable string keyed property of `object` thru | ||
| 13371 | * `iteratee`. The iteratee is invoked with three arguments: | ||
| 13372 | * (value, key, object). | ||
| 13373 | * | ||
| 13374 | * @static | ||
| 13375 | * @memberOf _ | ||
| 13376 | * @since 2.4.0 | ||
| 13377 | * @category Object | ||
| 13378 |      * @param {Object} object The object to iterate over. | ||
| 13379 |      * @param {Function} [iteratee=_.identity] The function invoked per iteration. | ||
| 13380 |      * @returns {Object} Returns the new mapped object. | ||
| 13381 | * @see _.mapKeys | ||
| 13382 | * @example | ||
| 13383 | * | ||
| 13384 |      * var users = { | ||
| 13385 |      *   'fred':    { 'user': 'fred',    'age': 40 }, | ||
| 13386 |      *   'pebbles': { 'user': 'pebbles', 'age': 1 } | ||
| 13387 | * }; | ||
| 13388 | * | ||
| 13389 |      * _.mapValues(users, function(o) { return o.age; }); | ||
| 13390 |      * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed) | ||
| 13391 | * | ||
| 13392 | * // The `_.property` iteratee shorthand. | ||
| 13393 | * _.mapValues(users, 'age'); | ||
| 13394 |      * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed) | ||
| 13395 | */ | ||
| 13396 |     function mapValues(object, iteratee) { | ||
| 13397 |       var result = {}; | ||
| 13398 | iteratee = getIteratee(iteratee, 3); | ||
| 13399 | |||
| 13400 |       baseForOwn(object, function(value, key, object) { | ||
| 13401 | baseAssignValue(result, key, iteratee(value, key, object)); | ||
| 13402 | }); | ||
| 13403 | return result; | ||
| 13404 | } | ||
| 13405 | |||
| 13406 | /** | ||
| 13407 | * This method is like `_.assign` except that it recursively merges own and | ||
| 13408 | * inherited enumerable string keyed properties of source objects into the | ||
| 13409 | * destination object. Source properties that resolve to `undefined` are | ||
| 13410 | * skipped if a destination value exists. Array and plain object properties | ||
| 13411 | * are merged recursively. Other objects and value types are overridden by | ||
| 13412 | * assignment. Source objects are applied from left to right. Subsequent | ||
| 13413 | * sources overwrite property assignments of previous sources. | ||
| 13414 | * | ||
| 13415 | * **Note:** This method mutates `object`. | ||
| 13416 | * | ||
| 13417 | * @static | ||
| 13418 | * @memberOf _ | ||
| 13419 | * @since 0.5.0 | ||
| 13420 | * @category Object | ||
| 13421 |      * @param {Object} object The destination object. | ||
| 13422 |      * @param {...Object} [sources] The source objects. | ||
| 13423 |      * @returns {Object} Returns `object`. | ||
| 13424 | * @example | ||
| 13425 | * | ||
| 13426 |      * var object = { | ||
| 13427 |      *   'a': [{ 'b': 2 }, { 'd': 4 }] | ||
| 13428 | * }; | ||
| 13429 | * | ||
| 13430 |      * var other = { | ||
| 13431 |      *   'a': [{ 'c': 3 }, { 'e': 5 }] | ||
| 13432 | * }; | ||
| 13433 | * | ||
| 13434 | * _.merge(object, other); | ||
| 13435 |      * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] } | ||
| 13436 | */ | ||
| 13437 |     var merge = createAssigner(function(object, source, srcIndex) { | ||
| 13438 | baseMerge(object, source, srcIndex); | ||
| 13439 | }); | ||
| 13440 | |||
| 13441 | /** | ||
| 13442 | * This method is like `_.merge` except that it accepts `customizer` which | ||
| 13443 | * is invoked to produce the merged values of the destination and source | ||
| 13444 | * properties. If `customizer` returns `undefined`, merging is handled by the | ||
| 13445 | * method instead. The `customizer` is invoked with six arguments: | ||
| 13446 | * (objValue, srcValue, key, object, source, stack). | ||
| 13447 | * | ||
| 13448 | * **Note:** This method mutates `object`. | ||
| 13449 | * | ||
| 13450 | * @static | ||
| 13451 | * @memberOf _ | ||
| 13452 | * @since 4.0.0 | ||
| 13453 | * @category Object | ||
| 13454 |      * @param {Object} object The destination object. | ||
| 13455 |      * @param {...Object} sources The source objects. | ||
| 13456 |      * @param {Function} customizer The function to customize assigned values. | ||
| 13457 |      * @returns {Object} Returns `object`. | ||
| 13458 | * @example | ||
| 13459 | * | ||
| 13460 |      * function customizer(objValue, srcValue) { | ||
| 13461 |      *   if (_.isArray(objValue)) { | ||
| 13462 | * return objValue.concat(srcValue); | ||
| 13463 | * } | ||
| 13464 | * } | ||
| 13465 | * | ||
| 13466 |      * var object = { 'a': [1], 'b': [2] }; | ||
| 13467 |      * var other = { 'a': [3], 'b': [4] }; | ||
| 13468 | * | ||
| 13469 | * _.mergeWith(object, other, customizer); | ||
| 13470 |      * // => { 'a': [1, 3], 'b': [2, 4] } | ||
| 13471 | */ | ||
| 13472 |     var mergeWith = createAssigner(function(object, source, srcIndex, customizer) { | ||
| 13473 | baseMerge(object, source, srcIndex, customizer); | ||
| 13474 | }); | ||
| 13475 | |||
| 13476 | /** | ||
| 13477 | * The opposite of `_.pick`; this method creates an object composed of the | ||
| 13478 | * own and inherited enumerable property paths of `object` that are not omitted. | ||
| 13479 | * | ||
| 13480 | * **Note:** This method is considerably slower than `_.pick`. | ||
| 13481 | * | ||
| 13482 | * @static | ||
| 13483 | * @since 0.1.0 | ||
| 13484 | * @memberOf _ | ||
| 13485 | * @category Object | ||
| 13486 |      * @param {Object} object The source object. | ||
| 13487 |      * @param {...(string|string[])} [paths] The property paths to omit. | ||
| 13488 |      * @returns {Object} Returns the new object. | ||
| 13489 | * @example | ||
| 13490 | * | ||
| 13491 |      * var object = { 'a': 1, 'b': '2', 'c': 3 }; | ||
| 13492 | * | ||
| 13493 | * _.omit(object, ['a', 'c']); | ||
| 13494 |      * // => { 'b': '2' } | ||
| 13495 | */ | ||
| 13496 |     var omit = flatRest(function(object, paths) { | ||
| 13497 |       var result = {}; | ||
| 13498 |       if (object == null) { | ||
| 13499 | return result; | ||
| 13500 | } | ||
| 13501 | var isDeep = false; | ||
| 13502 |       paths = arrayMap(paths, function(path) { | ||
| 13503 | path = castPath(path, object); | ||
| 13504 | isDeep || (isDeep = path.length > 1); | ||
| 13505 | return path; | ||
| 13506 | }); | ||
| 13507 | copyObject(object, getAllKeysIn(object), result); | ||
| 13508 |       if (isDeep) { | ||
| 13509 | result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone); | ||
| 13510 | } | ||
| 13511 | var length = paths.length; | ||
| 13512 |       while (length--) { | ||
| 13513 | baseUnset(result, paths[length]); | ||
| 13514 | } | ||
| 13515 | return result; | ||
| 13516 | }); | ||
| 13517 | |||
| 13518 | /** | ||
| 13519 | * The opposite of `_.pickBy`; this method creates an object composed of | ||
| 13520 | * the own and inherited enumerable string keyed properties of `object` that | ||
| 13521 | * `predicate` doesn't return truthy for. The predicate is invoked with two | ||
| 13522 | * arguments: (value, key). | ||
| 13523 | * | ||
| 13524 | * @static | ||
| 13525 | * @memberOf _ | ||
| 13526 | * @since 4.0.0 | ||
| 13527 | * @category Object | ||
| 13528 |      * @param {Object} object The source object. | ||
| 13529 |      * @param {Function} [predicate=_.identity] The function invoked per property. | ||
| 13530 |      * @returns {Object} Returns the new object. | ||
| 13531 | * @example | ||
| 13532 | * | ||
| 13533 |      * var object = { 'a': 1, 'b': '2', 'c': 3 }; | ||
| 13534 | * | ||
| 13535 | * _.omitBy(object, _.isNumber); | ||
| 13536 |      * // => { 'b': '2' } | ||
| 13537 | */ | ||
| 13538 |     function omitBy(object, predicate) { | ||
| 13539 | return pickBy(object, negate(getIteratee(predicate))); | ||
| 13540 | } | ||
| 13541 | |||
| 13542 | /** | ||
| 13543 | * Creates an object composed of the picked `object` properties. | ||
| 13544 | * | ||
| 13545 | * @static | ||
| 13546 | * @since 0.1.0 | ||
| 13547 | * @memberOf _ | ||
| 13548 | * @category Object | ||
| 13549 |      * @param {Object} object The source object. | ||
| 13550 |      * @param {...(string|string[])} [paths] The property paths to pick. | ||
| 13551 |      * @returns {Object} Returns the new object. | ||
| 13552 | * @example | ||
| 13553 | * | ||
| 13554 |      * var object = { 'a': 1, 'b': '2', 'c': 3 }; | ||
| 13555 | * | ||
| 13556 | * _.pick(object, ['a', 'c']); | ||
| 13557 |      * // => { 'a': 1, 'c': 3 } | ||
| 13558 | */ | ||
| 13559 |     var pick = flatRest(function(object, paths) { | ||
| 13560 |       return object == null ? {} : basePick(object, paths); | ||
| 13561 | }); | ||
| 13562 | |||
| 13563 | /** | ||
| 13564 | * Creates an object composed of the `object` properties `predicate` returns | ||
| 13565 | * truthy for. The predicate is invoked with two arguments: (value, key). | ||
| 13566 | * | ||
| 13567 | * @static | ||
| 13568 | * @memberOf _ | ||
| 13569 | * @since 4.0.0 | ||
| 13570 | * @category Object | ||
| 13571 |      * @param {Object} object The source object. | ||
| 13572 |      * @param {Function} [predicate=_.identity] The function invoked per property. | ||
| 13573 |      * @returns {Object} Returns the new object. | ||
| 13574 | * @example | ||
| 13575 | * | ||
| 13576 |      * var object = { 'a': 1, 'b': '2', 'c': 3 }; | ||
| 13577 | * | ||
| 13578 | * _.pickBy(object, _.isNumber); | ||
| 13579 |      * // => { 'a': 1, 'c': 3 } | ||
| 13580 | */ | ||
| 13581 |     function pickBy(object, predicate) { | ||
| 13582 |       if (object == null) { | ||
| 13583 |         return {}; | ||
| 13584 | } | ||
| 13585 |       var props = arrayMap(getAllKeysIn(object), function(prop) { | ||
| 13586 | return [prop]; | ||
| 13587 | }); | ||
| 13588 | predicate = getIteratee(predicate); | ||
| 13589 |       return basePickBy(object, props, function(value, path) { | ||
| 13590 | return predicate(value, path[0]); | ||
| 13591 | }); | ||
| 13592 | } | ||
| 13593 | |||
| 13594 | /** | ||
| 13595 | * This method is like `_.get` except that if the resolved value is a | ||
| 13596 | * function it's invoked with the `this` binding of its parent object and | ||
| 13597 | * its result is returned. | ||
| 13598 | * | ||
| 13599 | * @static | ||
| 13600 | * @since 0.1.0 | ||
| 13601 | * @memberOf _ | ||
| 13602 | * @category Object | ||
| 13603 |      * @param {Object} object The object to query. | ||
| 13604 |      * @param {Array|string} path The path of the property to resolve. | ||
| 13605 |      * @param {*} [defaultValue] The value returned for `undefined` resolved values. | ||
| 13606 |      * @returns {*} Returns the resolved value. | ||
| 13607 | * @example | ||
| 13608 | * | ||
| 13609 |      * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] }; | ||
| 13610 | * | ||
| 13611 | * _.result(object, 'a[0].b.c1'); | ||
| 13612 | * // => 3 | ||
| 13613 | * | ||
| 13614 | * _.result(object, 'a[0].b.c2'); | ||
| 13615 | * // => 4 | ||
| 13616 | * | ||
| 13617 | * _.result(object, 'a[0].b.c3', 'default'); | ||
| 13618 | * // => 'default' | ||
| 13619 | * | ||
| 13620 |      * _.result(object, 'a[0].b.c3', _.constant('default')); | ||
| 13621 | * // => 'default' | ||
| 13622 | */ | ||
| 13623 |     function result(object, path, defaultValue) { | ||
| 13624 | path = castPath(path, object); | ||
| 13625 | |||
| 13626 | var index = -1, | ||
| 13627 | length = path.length; | ||
| 13628 | |||
| 13629 | // Ensure the loop is entered when path is empty. | ||
| 13630 |       if (!length) { | ||
| 13631 | length = 1; | ||
| 13632 | object = undefined; | ||
| 13633 | } | ||
| 13634 |       while (++index < length) { | ||
| 13635 | var value = object == null ? undefined : object[toKey(path[index])]; | ||
| 13636 |         if (value === undefined) { | ||
| 13637 | index = length; | ||
| 13638 | value = defaultValue; | ||
| 13639 | } | ||
| 13640 | object = isFunction(value) ? value.call(object) : value; | ||
| 13641 | } | ||
| 13642 | return object; | ||
| 13643 | } | ||
| 13644 | |||
| 13645 | /** | ||
| 13646 | * Sets the value at `path` of `object`. If a portion of `path` doesn't exist, | ||
| 13647 | * it's created. Arrays are created for missing index properties while objects | ||
| 13648 | * are created for all other missing properties. Use `_.setWith` to customize | ||
| 13649 | * `path` creation. | ||
| 13650 | * | ||
| 13651 | * **Note:** This method mutates `object`. | ||
| 13652 | * | ||
| 13653 | * @static | ||
| 13654 | * @memberOf _ | ||
| 13655 | * @since 3.7.0 | ||
| 13656 | * @category Object | ||
| 13657 |      * @param {Object} object The object to modify. | ||
| 13658 |      * @param {Array|string} path The path of the property to set. | ||
| 13659 |      * @param {*} value The value to set. | ||
| 13660 |      * @returns {Object} Returns `object`. | ||
| 13661 | * @example | ||
| 13662 | * | ||
| 13663 |      * var object = { 'a': [{ 'b': { 'c': 3 } }] }; | ||
| 13664 | * | ||
| 13665 | * _.set(object, 'a[0].b.c', 4); | ||
| 13666 | * console.log(object.a[0].b.c); | ||
| 13667 | * // => 4 | ||
| 13668 | * | ||
| 13669 | * _.set(object, ['x', '0', 'y', 'z'], 5); | ||
| 13670 | * console.log(object.x[0].y.z); | ||
| 13671 | * // => 5 | ||
| 13672 | */ | ||
| 13673 |     function set(object, path, value) { | ||
| 13674 | return object == null ? object : baseSet(object, path, value); | ||
| 13675 | } | ||
| 13676 | |||
| 13677 | /** | ||
| 13678 | * This method is like `_.set` except that it accepts `customizer` which is | ||
| 13679 | * invoked to produce the objects of `path`. If `customizer` returns `undefined` | ||
| 13680 | * path creation is handled by the method instead. The `customizer` is invoked | ||
| 13681 | * with three arguments: (nsValue, key, nsObject). | ||
| 13682 | * | ||
| 13683 | * **Note:** This method mutates `object`. | ||
| 13684 | * | ||
| 13685 | * @static | ||
| 13686 | * @memberOf _ | ||
| 13687 | * @since 4.0.0 | ||
| 13688 | * @category Object | ||
| 13689 |      * @param {Object} object The object to modify. | ||
| 13690 |      * @param {Array|string} path The path of the property to set. | ||
| 13691 |      * @param {*} value The value to set. | ||
| 13692 |      * @param {Function} [customizer] The function to customize assigned values. | ||
| 13693 |      * @returns {Object} Returns `object`. | ||
| 13694 | * @example | ||
| 13695 | * | ||
| 13696 |      * var object = {}; | ||
| 13697 | * | ||
| 13698 | * _.setWith(object, '[0][1]', 'a', Object); | ||
| 13699 |      * // => { '0': { '1': 'a' } } | ||
| 13700 | */ | ||
| 13701 |     function setWith(object, path, value, customizer) { | ||
| 13702 | customizer = typeof customizer == 'function' ? customizer : undefined; | ||
| 13703 | return object == null ? object : baseSet(object, path, value, customizer); | ||
| 13704 | } | ||
| 13705 | |||
| 13706 | /** | ||
| 13707 | * Creates an array of own enumerable string keyed-value pairs for `object` | ||
| 13708 | * which can be consumed by `_.fromPairs`. If `object` is a map or set, its | ||
| 13709 | * entries are returned. | ||
| 13710 | * | ||
| 13711 | * @static | ||
| 13712 | * @memberOf _ | ||
| 13713 | * @since 4.0.0 | ||
| 13714 | * @alias entries | ||
| 13715 | * @category Object | ||
| 13716 |      * @param {Object} object The object to query. | ||
| 13717 |      * @returns {Array} Returns the key-value pairs. | ||
| 13718 | * @example | ||
| 13719 | * | ||
| 13720 |      * function Foo() { | ||
| 13721 | * this.a = 1; | ||
| 13722 | * this.b = 2; | ||
| 13723 | * } | ||
| 13724 | * | ||
| 13725 | * Foo.prototype.c = 3; | ||
| 13726 | * | ||
| 13727 | * _.toPairs(new Foo); | ||
| 13728 | * // => [['a', 1], ['b', 2]] (iteration order is not guaranteed) | ||
| 13729 | */ | ||
| 13730 | var toPairs = createToPairs(keys); | ||
| 13731 | |||
| 13732 | /** | ||
| 13733 | * Creates an array of own and inherited enumerable string keyed-value pairs | ||
| 13734 | * for `object` which can be consumed by `_.fromPairs`. If `object` is a map | ||
| 13735 | * or set, its entries are returned. | ||
| 13736 | * | ||
| 13737 | * @static | ||
| 13738 | * @memberOf _ | ||
| 13739 | * @since 4.0.0 | ||
| 13740 | * @alias entriesIn | ||
| 13741 | * @category Object | ||
| 13742 |      * @param {Object} object The object to query. | ||
| 13743 |      * @returns {Array} Returns the key-value pairs. | ||
| 13744 | * @example | ||
| 13745 | * | ||
| 13746 |      * function Foo() { | ||
| 13747 | * this.a = 1; | ||
| 13748 | * this.b = 2; | ||
| 13749 | * } | ||
| 13750 | * | ||
| 13751 | * Foo.prototype.c = 3; | ||
| 13752 | * | ||
| 13753 | * _.toPairsIn(new Foo); | ||
| 13754 | * // => [['a', 1], ['b', 2], ['c', 3]] (iteration order is not guaranteed) | ||
| 13755 | */ | ||
| 13756 | var toPairsIn = createToPairs(keysIn); | ||
| 13757 | |||
| 13758 | /** | ||
| 13759 | * An alternative to `_.reduce`; this method transforms `object` to a new | ||
| 13760 | * `accumulator` object which is the result of running each of its own | ||
| 13761 | * enumerable string keyed properties thru `iteratee`, with each invocation | ||
| 13762 | * potentially mutating the `accumulator` object. If `accumulator` is not | ||
| 13763 | * provided, a new object with the same `[[Prototype]]` will be used. The | ||
| 13764 | * iteratee is invoked with four arguments: (accumulator, value, key, object). | ||
| 13765 | * Iteratee functions may exit iteration early by explicitly returning `false`. | ||
| 13766 | * | ||
| 13767 | * @static | ||
| 13768 | * @memberOf _ | ||
| 13769 | * @since 1.3.0 | ||
| 13770 | * @category Object | ||
| 13771 |      * @param {Object} object The object to iterate over. | ||
| 13772 |      * @param {Function} [iteratee=_.identity] The function invoked per iteration. | ||
| 13773 |      * @param {*} [accumulator] The custom accumulator value. | ||
| 13774 |      * @returns {*} Returns the accumulated value. | ||
| 13775 | * @example | ||
| 13776 | * | ||
| 13777 |      * _.transform([2, 3, 4], function(result, n) { | ||
| 13778 | * result.push(n *= n); | ||
| 13779 | * return n % 2 == 0; | ||
| 13780 | * }, []); | ||
| 13781 | * // => [4, 9] | ||
| 13782 | * | ||
| 13783 |      * _.transform({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) { | ||
| 13784 | * (result[value] || (result[value] = [])).push(key); | ||
| 13785 |      * }, {}); | ||
| 13786 |      * // => { '1': ['a', 'c'], '2': ['b'] } | ||
| 13787 | */ | ||
| 13788 |     function transform(object, iteratee, accumulator) { | ||
| 13789 | var isArr = isArray(object), | ||
| 13790 | isArrLike = isArr || isBuffer(object) || isTypedArray(object); | ||
| 13791 | |||
| 13792 | iteratee = getIteratee(iteratee, 4); | ||
| 13793 |       if (accumulator == null) { | ||
| 13794 | var Ctor = object && object.constructor; | ||
| 13795 |         if (isArrLike) { | ||
| 13796 | accumulator = isArr ? new Ctor : []; | ||
| 13797 | } | ||
| 13798 |         else if (isObject(object)) { | ||
| 13799 |           accumulator = isFunction(Ctor) ? baseCreate(getPrototype(object)) : {}; | ||
| 13800 | } | ||
| 13801 |         else { | ||
| 13802 |           accumulator = {}; | ||
| 13803 | } | ||
| 13804 | } | ||
| 13805 |       (isArrLike ? arrayEach : baseForOwn)(object, function(value, index, object) { | ||
| 13806 | return iteratee(accumulator, value, index, object); | ||
| 13807 | }); | ||
| 13808 | return accumulator; | ||
| 13809 | } | ||
| 13810 | |||
| 13811 | /** | ||
| 13812 | * Removes the property at `path` of `object`. | ||
| 13813 | * | ||
| 13814 | * **Note:** This method mutates `object`. | ||
| 13815 | * | ||
| 13816 | * @static | ||
| 13817 | * @memberOf _ | ||
| 13818 | * @since 4.0.0 | ||
| 13819 | * @category Object | ||
| 13820 |      * @param {Object} object The object to modify. | ||
| 13821 |      * @param {Array|string} path The path of the property to unset. | ||
| 13822 |      * @returns {boolean} Returns `true` if the property is deleted, else `false`. | ||
| 13823 | * @example | ||
| 13824 | * | ||
| 13825 |      * var object = { 'a': [{ 'b': { 'c': 7 } }] }; | ||
| 13826 | * _.unset(object, 'a[0].b.c'); | ||
| 13827 | * // => true | ||
| 13828 | * | ||
| 13829 | * console.log(object); | ||
| 13830 |      * // => { 'a': [{ 'b': {} }] }; | ||
| 13831 | * | ||
| 13832 | * _.unset(object, ['a', '0', 'b', 'c']); | ||
| 13833 | * // => true | ||
| 13834 | * | ||
| 13835 | * console.log(object); | ||
| 13836 |      * // => { 'a': [{ 'b': {} }] }; | ||
| 13837 | */ | ||
| 13838 |     function unset(object, path) { | ||
| 13839 | return object == null ? true : baseUnset(object, path); | ||
| 13840 | } | ||
| 13841 | |||
| 13842 | /** | ||
| 13843 | * This method is like `_.set` except that accepts `updater` to produce the | ||
| 13844 | * value to set. Use `_.updateWith` to customize `path` creation. The `updater` | ||
| 13845 | * is invoked with one argument: (value). | ||
| 13846 | * | ||
| 13847 | * **Note:** This method mutates `object`. | ||
| 13848 | * | ||
| 13849 | * @static | ||
| 13850 | * @memberOf _ | ||
| 13851 | * @since 4.6.0 | ||
| 13852 | * @category Object | ||
| 13853 |      * @param {Object} object The object to modify. | ||
| 13854 |      * @param {Array|string} path The path of the property to set. | ||
| 13855 |      * @param {Function} updater The function to produce the updated value. | ||
| 13856 |      * @returns {Object} Returns `object`. | ||
| 13857 | * @example | ||
| 13858 | * | ||
| 13859 |      * var object = { 'a': [{ 'b': { 'c': 3 } }] }; | ||
| 13860 | * | ||
| 13861 |      * _.update(object, 'a[0].b.c', function(n) { return n * n; }); | ||
| 13862 | * console.log(object.a[0].b.c); | ||
| 13863 | * // => 9 | ||
| 13864 | * | ||
| 13865 |      * _.update(object, 'x[0].y.z', function(n) { return n ? n + 1 : 0; }); | ||
| 13866 | * console.log(object.x[0].y.z); | ||
| 13867 | * // => 0 | ||
| 13868 | */ | ||
| 13869 |     function update(object, path, updater) { | ||
| 13870 | return object == null ? object : baseUpdate(object, path, castFunction(updater)); | ||
| 13871 | } | ||
| 13872 | |||
| 13873 | /** | ||
| 13874 | * This method is like `_.update` except that it accepts `customizer` which is | ||
| 13875 | * invoked to produce the objects of `path`. If `customizer` returns `undefined` | ||
| 13876 | * path creation is handled by the method instead. The `customizer` is invoked | ||
| 13877 | * with three arguments: (nsValue, key, nsObject). | ||
| 13878 | * | ||
| 13879 | * **Note:** This method mutates `object`. | ||
| 13880 | * | ||
| 13881 | * @static | ||
| 13882 | * @memberOf _ | ||
| 13883 | * @since 4.6.0 | ||
| 13884 | * @category Object | ||
| 13885 |      * @param {Object} object The object to modify. | ||
| 13886 |      * @param {Array|string} path The path of the property to set. | ||
| 13887 |      * @param {Function} updater The function to produce the updated value. | ||
| 13888 |      * @param {Function} [customizer] The function to customize assigned values. | ||
| 13889 |      * @returns {Object} Returns `object`. | ||
| 13890 | * @example | ||
| 13891 | * | ||
| 13892 |      * var object = {}; | ||
| 13893 | * | ||
| 13894 |      * _.updateWith(object, '[0][1]', _.constant('a'), Object); | ||
| 13895 |      * // => { '0': { '1': 'a' } } | ||
| 13896 | */ | ||
| 13897 |     function updateWith(object, path, updater, customizer) { | ||
| 13898 | customizer = typeof customizer == 'function' ? customizer : undefined; | ||
| 13899 | return object == null ? object : baseUpdate(object, path, castFunction(updater), customizer); | ||
| 13900 | } | ||
| 13901 | |||
| 13902 | /** | ||
| 13903 | * Creates an array of the own enumerable string keyed property values of `object`. | ||
| 13904 | * | ||
| 13905 | * **Note:** Non-object values are coerced to objects. | ||
| 13906 | * | ||
| 13907 | * @static | ||
| 13908 | * @since 0.1.0 | ||
| 13909 | * @memberOf _ | ||
| 13910 | * @category Object | ||
| 13911 |      * @param {Object} object The object to query. | ||
| 13912 |      * @returns {Array} Returns the array of property values. | ||
| 13913 | * @example | ||
| 13914 | * | ||
| 13915 |      * function Foo() { | ||
| 13916 | * this.a = 1; | ||
| 13917 | * this.b = 2; | ||
| 13918 | * } | ||
| 13919 | * | ||
| 13920 | * Foo.prototype.c = 3; | ||
| 13921 | * | ||
| 13922 | * _.values(new Foo); | ||
| 13923 | * // => [1, 2] (iteration order is not guaranteed) | ||
| 13924 | * | ||
| 13925 |      * _.values('hi'); | ||
| 13926 | * // => ['h', 'i'] | ||
| 13927 | */ | ||
| 13928 |     function values(object) { | ||
| 13929 | return object == null ? [] : baseValues(object, keys(object)); | ||
| 13930 | } | ||
| 13931 | |||
| 13932 | /** | ||
| 13933 | * Creates an array of the own and inherited enumerable string keyed property | ||
| 13934 | * values of `object`. | ||
| 13935 | * | ||
| 13936 | * **Note:** Non-object values are coerced to objects. | ||
| 13937 | * | ||
| 13938 | * @static | ||
| 13939 | * @memberOf _ | ||
| 13940 | * @since 3.0.0 | ||
| 13941 | * @category Object | ||
| 13942 |      * @param {Object} object The object to query. | ||
| 13943 |      * @returns {Array} Returns the array of property values. | ||
| 13944 | * @example | ||
| 13945 | * | ||
| 13946 |      * function Foo() { | ||
| 13947 | * this.a = 1; | ||
| 13948 | * this.b = 2; | ||
| 13949 | * } | ||
| 13950 | * | ||
| 13951 | * Foo.prototype.c = 3; | ||
| 13952 | * | ||
| 13953 | * _.valuesIn(new Foo); | ||
| 13954 | * // => [1, 2, 3] (iteration order is not guaranteed) | ||
| 13955 | */ | ||
| 13956 |     function valuesIn(object) { | ||
| 13957 | return object == null ? [] : baseValues(object, keysIn(object)); | ||
| 13958 | } | ||
| 13959 | |||
| 13960 | /*------------------------------------------------------------------------*/ | ||
| 13961 | |||
| 13962 | /** | ||
| 13963 | * Clamps `number` within the inclusive `lower` and `upper` bounds. | ||
| 13964 | * | ||
| 13965 | * @static | ||
| 13966 | * @memberOf _ | ||
| 13967 | * @since 4.0.0 | ||
| 13968 | * @category Number | ||
| 13969 |      * @param {number} number The number to clamp. | ||
| 13970 |      * @param {number} [lower] The lower bound. | ||
| 13971 |      * @param {number} upper The upper bound. | ||
| 13972 |      * @returns {number} Returns the clamped number. | ||
| 13973 | * @example | ||
| 13974 | * | ||
| 13975 | * _.clamp(-10, -5, 5); | ||
| 13976 | * // => -5 | ||
| 13977 | * | ||
| 13978 | * _.clamp(10, -5, 5); | ||
| 13979 | * // => 5 | ||
| 13980 | */ | ||
| 13981 |     function clamp(number, lower, upper) { | ||
| 13982 |       if (upper === undefined) { | ||
| 13983 | upper = lower; | ||
| 13984 | lower = undefined; | ||
| 13985 | } | ||
| 13986 |       if (upper !== undefined) { | ||
| 13987 | upper = toNumber(upper); | ||
| 13988 | upper = upper === upper ? upper : 0; | ||
| 13989 | } | ||
| 13990 |       if (lower !== undefined) { | ||
| 13991 | lower = toNumber(lower); | ||
| 13992 | lower = lower === lower ? lower : 0; | ||
| 13993 | } | ||
| 13994 | return baseClamp(toNumber(number), lower, upper); | ||
| 13995 | } | ||
| 13996 | |||
| 13997 | /** | ||
| 13998 | * Checks if `n` is between `start` and up to, but not including, `end`. If | ||
| 13999 | * `end` is not specified, it's set to `start` with `start` then set to `0`. | ||
| 14000 | * If `start` is greater than `end` the params are swapped to support | ||
| 14001 | * negative ranges. | ||
| 14002 | * | ||
| 14003 | * @static | ||
| 14004 | * @memberOf _ | ||
| 14005 | * @since 3.3.0 | ||
| 14006 | * @category Number | ||
| 14007 |      * @param {number} number The number to check. | ||
| 14008 |      * @param {number} [start=0] The start of the range. | ||
| 14009 |      * @param {number} end The end of the range. | ||
| 14010 |      * @returns {boolean} Returns `true` if `number` is in the range, else `false`. | ||
| 14011 | * @see _.range, _.rangeRight | ||
| 14012 | * @example | ||
| 14013 | * | ||
| 14014 | * _.inRange(3, 2, 4); | ||
| 14015 | * // => true | ||
| 14016 | * | ||
| 14017 | * _.inRange(4, 8); | ||
| 14018 | * // => true | ||
| 14019 | * | ||
| 14020 | * _.inRange(4, 2); | ||
| 14021 | * // => false | ||
| 14022 | * | ||
| 14023 | * _.inRange(2, 2); | ||
| 14024 | * // => false | ||
| 14025 | * | ||
| 14026 | * _.inRange(1.2, 2); | ||
| 14027 | * // => true | ||
| 14028 | * | ||
| 14029 | * _.inRange(5.2, 4); | ||
| 14030 | * // => false | ||
| 14031 | * | ||
| 14032 | * _.inRange(-3, -2, -6); | ||
| 14033 | * // => true | ||
| 14034 | */ | ||
| 14035 |     function inRange(number, start, end) { | ||
| 14036 | start = toFinite(start); | ||
| 14037 |       if (end === undefined) { | ||
| 14038 | end = start; | ||
| 14039 | start = 0; | ||
| 14040 |       } else { | ||
| 14041 | end = toFinite(end); | ||
| 14042 | } | ||
| 14043 | number = toNumber(number); | ||
| 14044 | return baseInRange(number, start, end); | ||
| 14045 | } | ||
| 14046 | |||
| 14047 | /** | ||
| 14048 | * Produces a random number between the inclusive `lower` and `upper` bounds. | ||
| 14049 | * If only one argument is provided a number between `0` and the given number | ||
| 14050 | * is returned. If `floating` is `true`, or either `lower` or `upper` are | ||
| 14051 | * floats, a floating-point number is returned instead of an integer. | ||
| 14052 | * | ||
| 14053 | * **Note:** JavaScript follows the IEEE-754 standard for resolving | ||
| 14054 | * floating-point values which can produce unexpected results. | ||
| 14055 | * | ||
| 14056 | * @static | ||
| 14057 | * @memberOf _ | ||
| 14058 | * @since 0.7.0 | ||
| 14059 | * @category Number | ||
| 14060 |      * @param {number} [lower=0] The lower bound. | ||
| 14061 |      * @param {number} [upper=1] The upper bound. | ||
| 14062 |      * @param {boolean} [floating] Specify returning a floating-point number. | ||
| 14063 |      * @returns {number} Returns the random number. | ||
| 14064 | * @example | ||
| 14065 | * | ||
| 14066 | * _.random(0, 5); | ||
| 14067 | * // => an integer between 0 and 5 | ||
| 14068 | * | ||
| 14069 | * _.random(5); | ||
| 14070 | * // => also an integer between 0 and 5 | ||
| 14071 | * | ||
| 14072 | * _.random(5, true); | ||
| 14073 | * // => a floating-point number between 0 and 5 | ||
| 14074 | * | ||
| 14075 | * _.random(1.2, 5.2); | ||
| 14076 | * // => a floating-point number between 1.2 and 5.2 | ||
| 14077 | */ | ||
| 14078 |     function random(lower, upper, floating) { | ||
| 14079 |       if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) { | ||
| 14080 | upper = floating = undefined; | ||
| 14081 | } | ||
| 14082 |       if (floating === undefined) { | ||
| 14083 |         if (typeof upper == 'boolean') { | ||
| 14084 | floating = upper; | ||
| 14085 | upper = undefined; | ||
| 14086 | } | ||
| 14087 |         else if (typeof lower == 'boolean') { | ||
| 14088 | floating = lower; | ||
| 14089 | lower = undefined; | ||
| 14090 | } | ||
| 14091 | } | ||
| 14092 |       if (lower === undefined && upper === undefined) { | ||
| 14093 | lower = 0; | ||
| 14094 | upper = 1; | ||
| 14095 | } | ||
| 14096 |       else { | ||
| 14097 | lower = toFinite(lower); | ||
| 14098 |         if (upper === undefined) { | ||
| 14099 | upper = lower; | ||
| 14100 | lower = 0; | ||
| 14101 |         } else { | ||
| 14102 | upper = toFinite(upper); | ||
| 14103 | } | ||
| 14104 | } | ||
| 14105 |       if (lower > upper) { | ||
| 14106 | var temp = lower; | ||
| 14107 | lower = upper; | ||
| 14108 | upper = temp; | ||
| 14109 | } | ||
| 14110 |       if (floating || lower % 1 || upper % 1) { | ||
| 14111 | var rand = nativeRandom(); | ||
| 14112 |         return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper); | ||
| 14113 | } | ||
| 14114 | return baseRandom(lower, upper); | ||
| 14115 | } | ||
| 14116 | |||
| 14117 | /*------------------------------------------------------------------------*/ | ||
| 14118 | |||
| 14119 | /** | ||
| 14120 | * Converts `string` to [camel case](https://en.wikipedia.org/wiki/CamelCase). | ||
| 14121 | * | ||
| 14122 | * @static | ||
| 14123 | * @memberOf _ | ||
| 14124 | * @since 3.0.0 | ||
| 14125 | * @category String | ||
| 14126 |      * @param {string} [string=''] The string to convert. | ||
| 14127 |      * @returns {string} Returns the camel cased string. | ||
| 14128 | * @example | ||
| 14129 | * | ||
| 14130 |      * _.camelCase('Foo Bar'); | ||
| 14131 | * // => 'fooBar' | ||
| 14132 | * | ||
| 14133 |      * _.camelCase('--foo-bar--'); | ||
| 14134 | * // => 'fooBar' | ||
| 14135 | * | ||
| 14136 |      * _.camelCase('__FOO_BAR__'); | ||
| 14137 | * // => 'fooBar' | ||
| 14138 | */ | ||
| 14139 |     var camelCase = createCompounder(function(result, word, index) { | ||
| 14140 | word = word.toLowerCase(); | ||
| 14141 | return result + (index ? capitalize(word) : word); | ||
| 14142 | }); | ||
| 14143 | |||
| 14144 | /** | ||
| 14145 | * Converts the first character of `string` to upper case and the remaining | ||
| 14146 | * to lower case. | ||
| 14147 | * | ||
| 14148 | * @static | ||
| 14149 | * @memberOf _ | ||
| 14150 | * @since 3.0.0 | ||
| 14151 | * @category String | ||
| 14152 |      * @param {string} [string=''] The string to capitalize. | ||
| 14153 |      * @returns {string} Returns the capitalized string. | ||
| 14154 | * @example | ||
| 14155 | * | ||
| 14156 |      * _.capitalize('FRED'); | ||
| 14157 | * // => 'Fred' | ||
| 14158 | */ | ||
| 14159 |     function capitalize(string) { | ||
| 14160 | return upperFirst(toString(string).toLowerCase()); | ||
| 14161 | } | ||
| 14162 | |||
| 14163 | /** | ||
| 14164 | * Deburrs `string` by converting | ||
| 14165 | * [Latin-1 Supplement](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table) | ||
| 14166 | * and [Latin Extended-A](https://en.wikipedia.org/wiki/Latin_Extended-A) | ||
| 14167 | * letters to basic Latin letters and removing | ||
| 14168 | * [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks). | ||
| 14169 | * | ||
| 14170 | * @static | ||
| 14171 | * @memberOf _ | ||
| 14172 | * @since 3.0.0 | ||
| 14173 | * @category String | ||
| 14174 |      * @param {string} [string=''] The string to deburr. | ||
| 14175 |      * @returns {string} Returns the deburred string. | ||
| 14176 | * @example | ||
| 14177 | * | ||
| 14178 |      * _.deburr('déjà vu'); | ||
| 14179 | * // => 'deja vu' | ||
| 14180 | */ | ||
| 14181 |     function deburr(string) { | ||
| 14182 | string = toString(string); | ||
| 14183 | return string && string.replace(reLatin, deburrLetter).replace(reComboMark, ''); | ||
| 14184 | } | ||
| 14185 | |||
| 14186 | /** | ||
| 14187 | * Checks if `string` ends with the given target string. | ||
| 14188 | * | ||
| 14189 | * @static | ||
| 14190 | * @memberOf _ | ||
| 14191 | * @since 3.0.0 | ||
| 14192 | * @category String | ||
| 14193 |      * @param {string} [string=''] The string to inspect. | ||
| 14194 |      * @param {string} [target] The string to search for. | ||
| 14195 |      * @param {number} [position=string.length] The position to search up to. | ||
| 14196 |      * @returns {boolean} Returns `true` if `string` ends with `target`, | ||
| 14197 | * else `false`. | ||
| 14198 | * @example | ||
| 14199 | * | ||
| 14200 |      * _.endsWith('abc', 'c'); | ||
| 14201 | * // => true | ||
| 14202 | * | ||
| 14203 |      * _.endsWith('abc', 'b'); | ||
| 14204 | * // => false | ||
| 14205 | * | ||
| 14206 |      * _.endsWith('abc', 'b', 2); | ||
| 14207 | * // => true | ||
| 14208 | */ | ||
| 14209 |     function endsWith(string, target, position) { | ||
| 14210 | string = toString(string); | ||
| 14211 | target = baseToString(target); | ||
| 14212 | |||
| 14213 | var length = string.length; | ||
| 14214 | position = position === undefined | ||
| 14215 | ? length | ||
| 14216 | : baseClamp(toInteger(position), 0, length); | ||
| 14217 | |||
| 14218 | var end = position; | ||
| 14219 | position -= target.length; | ||
| 14220 | return position >= 0 && string.slice(position, end) == target; | ||
| 14221 | } | ||
| 14222 | |||
| 14223 | /** | ||
| 14224 | * Converts the characters "&", "<", ">", '"', and "'" in `string` to their | ||
| 14225 | * corresponding HTML entities. | ||
| 14226 | * | ||
| 14227 | * **Note:** No other characters are escaped. To escape additional | ||
| 14228 | * characters use a third-party library like [_he_](https://mths.be/he). | ||
| 14229 | * | ||
| 14230 | * Though the ">" character is escaped for symmetry, characters like | ||
| 14231 | * ">" and "/" don't need escaping in HTML and have no special meaning | ||
| 14232 | * unless they're part of a tag or unquoted attribute value. See | ||
| 14233 | * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands) | ||
| 14234 | * (under "semi-related fun fact") for more details. | ||
| 14235 | * | ||
| 14236 | * When working with HTML you should always | ||
| 14237 | * [quote attribute values](http://wonko.com/post/html-escaping) to reduce | ||
| 14238 | * XSS vectors. | ||
| 14239 | * | ||
| 14240 | * @static | ||
| 14241 | * @since 0.1.0 | ||
| 14242 | * @memberOf _ | ||
| 14243 | * @category String | ||
| 14244 |      * @param {string} [string=''] The string to escape. | ||
| 14245 |      * @returns {string} Returns the escaped string. | ||
| 14246 | * @example | ||
| 14247 | * | ||
| 14248 |      * _.escape('fred, barney, & pebbles'); | ||
| 14249 | * // => 'fred, barney, & pebbles' | ||
| 14250 | */ | ||
| 14251 |     function escape(string) { | ||
| 14252 | string = toString(string); | ||
| 14253 | return (string && reHasUnescapedHtml.test(string)) | ||
| 14254 | ? string.replace(reUnescapedHtml, escapeHtmlChar) | ||
| 14255 | : string; | ||
| 14256 | } | ||
| 14257 | |||
| 14258 | /** | ||
| 14259 | * Escapes the `RegExp` special characters "^", "$", "\", ".", "*", "+", | ||
| 14260 |      * "?", "(", ")", "[", "]", "{", "}", and "|" in `string`. | ||
| 14261 | * | ||
| 14262 | * @static | ||
| 14263 | * @memberOf _ | ||
| 14264 | * @since 3.0.0 | ||
| 14265 | * @category String | ||
| 14266 |      * @param {string} [string=''] The string to escape. | ||
| 14267 |      * @returns {string} Returns the escaped string. | ||
| 14268 | * @example | ||
| 14269 | * | ||
| 14270 |      * _.escapeRegExp('[lodash](https://lodash.com/)'); | ||
| 14271 | * // => '\[lodash\]\(https://lodash\.com/\)' | ||
| 14272 | */ | ||
| 14273 |     function escapeRegExp(string) { | ||
| 14274 | string = toString(string); | ||
| 14275 | return (string && reHasRegExpChar.test(string)) | ||
| 14276 | ? string.replace(reRegExpChar, '\\$&') | ||
| 14277 | : string; | ||
| 14278 | } | ||
| 14279 | |||
| 14280 | /** | ||
| 14281 | * Converts `string` to | ||
| 14282 | * [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles). | ||
| 14283 | * | ||
| 14284 | * @static | ||
| 14285 | * @memberOf _ | ||
| 14286 | * @since 3.0.0 | ||
| 14287 | * @category String | ||
| 14288 |      * @param {string} [string=''] The string to convert. | ||
| 14289 |      * @returns {string} Returns the kebab cased string. | ||
| 14290 | * @example | ||
| 14291 | * | ||
| 14292 |      * _.kebabCase('Foo Bar'); | ||
| 14293 | * // => 'foo-bar' | ||
| 14294 | * | ||
| 14295 |      * _.kebabCase('fooBar'); | ||
| 14296 | * // => 'foo-bar' | ||
| 14297 | * | ||
| 14298 |      * _.kebabCase('__FOO_BAR__'); | ||
| 14299 | * // => 'foo-bar' | ||
| 14300 | */ | ||
| 14301 |     var kebabCase = createCompounder(function(result, word, index) { | ||
| 14302 | return result + (index ? '-' : '') + word.toLowerCase(); | ||
| 14303 | }); | ||
| 14304 | |||
| 14305 | /** | ||
| 14306 | * Converts `string`, as space separated words, to lower case. | ||
| 14307 | * | ||
| 14308 | * @static | ||
| 14309 | * @memberOf _ | ||
| 14310 | * @since 4.0.0 | ||
| 14311 | * @category String | ||
| 14312 |      * @param {string} [string=''] The string to convert. | ||
| 14313 |      * @returns {string} Returns the lower cased string. | ||
| 14314 | * @example | ||
| 14315 | * | ||
| 14316 |      * _.lowerCase('--Foo-Bar--'); | ||
| 14317 | * // => 'foo bar' | ||
| 14318 | * | ||
| 14319 |      * _.lowerCase('fooBar'); | ||
| 14320 | * // => 'foo bar' | ||
| 14321 | * | ||
| 14322 |      * _.lowerCase('__FOO_BAR__'); | ||
| 14323 | * // => 'foo bar' | ||
| 14324 | */ | ||
| 14325 |     var lowerCase = createCompounder(function(result, word, index) { | ||
| 14326 | return result + (index ? ' ' : '') + word.toLowerCase(); | ||
| 14327 | }); | ||
| 14328 | |||
| 14329 | /** | ||
| 14330 | * Converts the first character of `string` to lower case. | ||
| 14331 | * | ||
| 14332 | * @static | ||
| 14333 | * @memberOf _ | ||
| 14334 | * @since 4.0.0 | ||
| 14335 | * @category String | ||
| 14336 |      * @param {string} [string=''] The string to convert. | ||
| 14337 |      * @returns {string} Returns the converted string. | ||
| 14338 | * @example | ||
| 14339 | * | ||
| 14340 |      * _.lowerFirst('Fred'); | ||
| 14341 | * // => 'fred' | ||
| 14342 | * | ||
| 14343 |      * _.lowerFirst('FRED'); | ||
| 14344 | * // => 'fRED' | ||
| 14345 | */ | ||
| 14346 |     var lowerFirst = createCaseFirst('toLowerCase'); | ||
| 14347 | |||
| 14348 | /** | ||
| 14349 | * Pads `string` on the left and right sides if it's shorter than `length`. | ||
| 14350 | * Padding characters are truncated if they can't be evenly divided by `length`. | ||
| 14351 | * | ||
| 14352 | * @static | ||
| 14353 | * @memberOf _ | ||
| 14354 | * @since 3.0.0 | ||
| 14355 | * @category String | ||
| 14356 |      * @param {string} [string=''] The string to pad. | ||
| 14357 |      * @param {number} [length=0] The padding length. | ||
| 14358 |      * @param {string} [chars=' '] The string used as padding. | ||
| 14359 |      * @returns {string} Returns the padded string. | ||
| 14360 | * @example | ||
| 14361 | * | ||
| 14362 |      * _.pad('abc', 8); | ||
| 14363 | * // => ' abc ' | ||
| 14364 | * | ||
| 14365 |      * _.pad('abc', 8, '_-'); | ||
| 14366 | * // => '_-abc_-_' | ||
| 14367 | * | ||
| 14368 |      * _.pad('abc', 3); | ||
| 14369 | * // => 'abc' | ||
| 14370 | */ | ||
| 14371 |     function pad(string, length, chars) { | ||
| 14372 | string = toString(string); | ||
| 14373 | length = toInteger(length); | ||
| 14374 | |||
| 14375 | var strLength = length ? stringSize(string) : 0; | ||
| 14376 |       if (!length || strLength >= length) { | ||
| 14377 | return string; | ||
| 14378 | } | ||
| 14379 | var mid = (length - strLength) / 2; | ||
| 14380 | return ( | ||
| 14381 | createPadding(nativeFloor(mid), chars) + | ||
| 14382 | string + | ||
| 14383 | createPadding(nativeCeil(mid), chars) | ||
| 14384 | ); | ||
| 14385 | } | ||
| 14386 | |||
| 14387 | /** | ||
| 14388 | * Pads `string` on the right side if it's shorter than `length`. Padding | ||
| 14389 | * characters are truncated if they exceed `length`. | ||
| 14390 | * | ||
| 14391 | * @static | ||
| 14392 | * @memberOf _ | ||
| 14393 | * @since 4.0.0 | ||
| 14394 | * @category String | ||
| 14395 |      * @param {string} [string=''] The string to pad. | ||
| 14396 |      * @param {number} [length=0] The padding length. | ||
| 14397 |      * @param {string} [chars=' '] The string used as padding. | ||
| 14398 |      * @returns {string} Returns the padded string. | ||
| 14399 | * @example | ||
| 14400 | * | ||
| 14401 |      * _.padEnd('abc', 6); | ||
| 14402 | * // => 'abc ' | ||
| 14403 | * | ||
| 14404 |      * _.padEnd('abc', 6, '_-'); | ||
| 14405 | * // => 'abc_-_' | ||
| 14406 | * | ||
| 14407 |      * _.padEnd('abc', 3); | ||
| 14408 | * // => 'abc' | ||
| 14409 | */ | ||
| 14410 |     function padEnd(string, length, chars) { | ||
| 14411 | string = toString(string); | ||
| 14412 | length = toInteger(length); | ||
| 14413 | |||
| 14414 | var strLength = length ? stringSize(string) : 0; | ||
| 14415 | return (length && strLength < length) | ||
| 14416 | ? (string + createPadding(length - strLength, chars)) | ||
| 14417 | : string; | ||
| 14418 | } | ||
| 14419 | |||
| 14420 | /** | ||
| 14421 | * Pads `string` on the left side if it's shorter than `length`. Padding | ||
| 14422 | * characters are truncated if they exceed `length`. | ||
| 14423 | * | ||
| 14424 | * @static | ||
| 14425 | * @memberOf _ | ||
| 14426 | * @since 4.0.0 | ||
| 14427 | * @category String | ||
| 14428 |      * @param {string} [string=''] The string to pad. | ||
| 14429 |      * @param {number} [length=0] The padding length. | ||
| 14430 |      * @param {string} [chars=' '] The string used as padding. | ||
| 14431 |      * @returns {string} Returns the padded string. | ||
| 14432 | * @example | ||
| 14433 | * | ||
| 14434 |      * _.padStart('abc', 6); | ||
| 14435 | * // => ' abc' | ||
| 14436 | * | ||
| 14437 |      * _.padStart('abc', 6, '_-'); | ||
| 14438 | * // => '_-_abc' | ||
| 14439 | * | ||
| 14440 |      * _.padStart('abc', 3); | ||
| 14441 | * // => 'abc' | ||
| 14442 | */ | ||
| 14443 |     function padStart(string, length, chars) { | ||
| 14444 | string = toString(string); | ||
| 14445 | length = toInteger(length); | ||
| 14446 | |||
| 14447 | var strLength = length ? stringSize(string) : 0; | ||
| 14448 | return (length && strLength < length) | ||
| 14449 | ? (createPadding(length - strLength, chars) + string) | ||
| 14450 | : string; | ||
| 14451 | } | ||
| 14452 | |||
| 14453 | /** | ||
| 14454 | * Converts `string` to an integer of the specified radix. If `radix` is | ||
| 14455 | * `undefined` or `0`, a `radix` of `10` is used unless `value` is a | ||
| 14456 | * hexadecimal, in which case a `radix` of `16` is used. | ||
| 14457 | * | ||
| 14458 | * **Note:** This method aligns with the | ||
| 14459 | * [ES5 implementation](https://es5.github.io/#x15.1.2.2) of `parseInt`. | ||
| 14460 | * | ||
| 14461 | * @static | ||
| 14462 | * @memberOf _ | ||
| 14463 | * @since 1.1.0 | ||
| 14464 | * @category String | ||
| 14465 |      * @param {string} string The string to convert. | ||
| 14466 |      * @param {number} [radix=10] The radix to interpret `value` by. | ||
| 14467 |      * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. | ||
| 14468 |      * @returns {number} Returns the converted integer. | ||
| 14469 | * @example | ||
| 14470 | * | ||
| 14471 |      * _.parseInt('08'); | ||
| 14472 | * // => 8 | ||
| 14473 | * | ||
| 14474 | * _.map(['6', '08', '10'], _.parseInt); | ||
| 14475 | * // => [6, 8, 10] | ||
| 14476 | */ | ||
| 14477 |     function parseInt(string, radix, guard) { | ||
| 14478 |       if (guard || radix == null) { | ||
| 14479 | radix = 0; | ||
| 14480 |       } else if (radix) { | ||
| 14481 | radix = +radix; | ||
| 14482 | } | ||
| 14483 | return nativeParseInt(toString(string).replace(reTrimStart, ''), radix || 0); | ||
| 14484 | } | ||
| 14485 | |||
| 14486 | /** | ||
| 14487 | * Repeats the given string `n` times. | ||
| 14488 | * | ||
| 14489 | * @static | ||
| 14490 | * @memberOf _ | ||
| 14491 | * @since 3.0.0 | ||
| 14492 | * @category String | ||
| 14493 |      * @param {string} [string=''] The string to repeat. | ||
| 14494 |      * @param {number} [n=1] The number of times to repeat the string. | ||
| 14495 |      * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. | ||
| 14496 |      * @returns {string} Returns the repeated string. | ||
| 14497 | * @example | ||
| 14498 | * | ||
| 14499 |      * _.repeat('*', 3); | ||
| 14500 | * // => '***' | ||
| 14501 | * | ||
| 14502 |      * _.repeat('abc', 2); | ||
| 14503 | * // => 'abcabc' | ||
| 14504 | * | ||
| 14505 |      * _.repeat('abc', 0); | ||
| 14506 | * // => '' | ||
| 14507 | */ | ||
| 14508 |     function repeat(string, n, guard) { | ||
| 14509 |       if ((guard ? isIterateeCall(string, n, guard) : n === undefined)) { | ||
| 14510 | n = 1; | ||
| 14511 |       } else { | ||
| 14512 | n = toInteger(n); | ||
| 14513 | } | ||
| 14514 | return baseRepeat(toString(string), n); | ||
| 14515 | } | ||
| 14516 | |||
| 14517 | /** | ||
| 14518 | * Replaces matches for `pattern` in `string` with `replacement`. | ||
| 14519 | * | ||
| 14520 | * **Note:** This method is based on | ||
| 14521 | * [`String#replace`](https://mdn.io/String/replace). | ||
| 14522 | * | ||
| 14523 | * @static | ||
| 14524 | * @memberOf _ | ||
| 14525 | * @since 4.0.0 | ||
| 14526 | * @category String | ||
| 14527 |      * @param {string} [string=''] The string to modify. | ||
| 14528 |      * @param {RegExp|string} pattern The pattern to replace. | ||
| 14529 |      * @param {Function|string} replacement The match replacement. | ||
| 14530 |      * @returns {string} Returns the modified string. | ||
| 14531 | * @example | ||
| 14532 | * | ||
| 14533 |      * _.replace('Hi Fred', 'Fred', 'Barney'); | ||
| 14534 | * // => 'Hi Barney' | ||
| 14535 | */ | ||
| 14536 |     function replace() { | ||
| 14537 | var args = arguments, | ||
| 14538 | string = toString(args[0]); | ||
| 14539 | |||
| 14540 | return args.length < 3 ? string : string.replace(args[1], args[2]); | ||
| 14541 | } | ||
| 14542 | |||
| 14543 | /** | ||
| 14544 | * Converts `string` to | ||
| 14545 | * [snake case](https://en.wikipedia.org/wiki/Snake_case). | ||
| 14546 | * | ||
| 14547 | * @static | ||
| 14548 | * @memberOf _ | ||
| 14549 | * @since 3.0.0 | ||
| 14550 | * @category String | ||
| 14551 |      * @param {string} [string=''] The string to convert. | ||
| 14552 |      * @returns {string} Returns the snake cased string. | ||
| 14553 | * @example | ||
| 14554 | * | ||
| 14555 |      * _.snakeCase('Foo Bar'); | ||
| 14556 | * // => 'foo_bar' | ||
| 14557 | * | ||
| 14558 |      * _.snakeCase('fooBar'); | ||
| 14559 | * // => 'foo_bar' | ||
| 14560 | * | ||
| 14561 |      * _.snakeCase('--FOO-BAR--'); | ||
| 14562 | * // => 'foo_bar' | ||
| 14563 | */ | ||
| 14564 |     var snakeCase = createCompounder(function(result, word, index) { | ||
| 14565 | return result + (index ? '_' : '') + word.toLowerCase(); | ||
| 14566 | }); | ||
| 14567 | |||
| 14568 | /** | ||
| 14569 | * Splits `string` by `separator`. | ||
| 14570 | * | ||
| 14571 | * **Note:** This method is based on | ||
| 14572 | * [`String#split`](https://mdn.io/String/split). | ||
| 14573 | * | ||
| 14574 | * @static | ||
| 14575 | * @memberOf _ | ||
| 14576 | * @since 4.0.0 | ||
| 14577 | * @category String | ||
| 14578 |      * @param {string} [string=''] The string to split. | ||
| 14579 |      * @param {RegExp|string} separator The separator pattern to split by. | ||
| 14580 |      * @param {number} [limit] The length to truncate results to. | ||
| 14581 |      * @returns {Array} Returns the string segments. | ||
| 14582 | * @example | ||
| 14583 | * | ||
| 14584 |      * _.split('a-b-c', '-', 2); | ||
| 14585 | * // => ['a', 'b'] | ||
| 14586 | */ | ||
| 14587 |     function split(string, separator, limit) { | ||
| 14588 |       if (limit && typeof limit != 'number' && isIterateeCall(string, separator, limit)) { | ||
| 14589 | separator = limit = undefined; | ||
| 14590 | } | ||
| 14591 | limit = limit === undefined ? MAX_ARRAY_LENGTH : limit >>> 0; | ||
| 14592 |       if (!limit) { | ||
| 14593 | return []; | ||
| 14594 | } | ||
| 14595 | string = toString(string); | ||
| 14596 | if (string && ( | ||
| 14597 | typeof separator == 'string' || | ||
| 14598 | (separator != null && !isRegExp(separator)) | ||
| 14599 |           )) { | ||
| 14600 | separator = baseToString(separator); | ||
| 14601 |         if (!separator && hasUnicode(string)) { | ||
| 14602 | return castSlice(stringToArray(string), 0, limit); | ||
| 14603 | } | ||
| 14604 | } | ||
| 14605 | return string.split(separator, limit); | ||
| 14606 | } | ||
| 14607 | |||
| 14608 | /** | ||
| 14609 | * Converts `string` to | ||
| 14610 | * [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage). | ||
| 14611 | * | ||
| 14612 | * @static | ||
| 14613 | * @memberOf _ | ||
| 14614 | * @since 3.1.0 | ||
| 14615 | * @category String | ||
| 14616 |      * @param {string} [string=''] The string to convert. | ||
| 14617 |      * @returns {string} Returns the start cased string. | ||
| 14618 | * @example | ||
| 14619 | * | ||
| 14620 |      * _.startCase('--foo-bar--'); | ||
| 14621 | * // => 'Foo Bar' | ||
| 14622 | * | ||
| 14623 |      * _.startCase('fooBar'); | ||
| 14624 | * // => 'Foo Bar' | ||
| 14625 | * | ||
| 14626 |      * _.startCase('__FOO_BAR__'); | ||
| 14627 | * // => 'FOO BAR' | ||
| 14628 | */ | ||
| 14629 |     var startCase = createCompounder(function(result, word, index) { | ||
| 14630 | return result + (index ? ' ' : '') + upperFirst(word); | ||
| 14631 | }); | ||
| 14632 | |||
| 14633 | /** | ||
| 14634 | * Checks if `string` starts with the given target string. | ||
| 14635 | * | ||
| 14636 | * @static | ||
| 14637 | * @memberOf _ | ||
| 14638 | * @since 3.0.0 | ||
| 14639 | * @category String | ||
| 14640 |      * @param {string} [string=''] The string to inspect. | ||
| 14641 |      * @param {string} [target] The string to search for. | ||
| 14642 |      * @param {number} [position=0] The position to search from. | ||
| 14643 |      * @returns {boolean} Returns `true` if `string` starts with `target`, | ||
| 14644 | * else `false`. | ||
| 14645 | * @example | ||
| 14646 | * | ||
| 14647 |      * _.startsWith('abc', 'a'); | ||
| 14648 | * // => true | ||
| 14649 | * | ||
| 14650 |      * _.startsWith('abc', 'b'); | ||
| 14651 | * // => false | ||
| 14652 | * | ||
| 14653 |      * _.startsWith('abc', 'b', 1); | ||
| 14654 | * // => true | ||
| 14655 | */ | ||
| 14656 |     function startsWith(string, target, position) { | ||
| 14657 | string = toString(string); | ||
| 14658 | position = position == null | ||
| 14659 | ? 0 | ||
| 14660 | : baseClamp(toInteger(position), 0, string.length); | ||
| 14661 | |||
| 14662 | target = baseToString(target); | ||
| 14663 | return string.slice(position, position + target.length) == target; | ||
| 14664 | } | ||
| 14665 | |||
| 14666 | /** | ||
| 14667 | * Creates a compiled template function that can interpolate data properties | ||
| 14668 | * in "interpolate" delimiters, HTML-escape interpolated data properties in | ||
| 14669 | * "escape" delimiters, and execute JavaScript in "evaluate" delimiters. Data | ||
| 14670 | * properties may be accessed as free variables in the template. If a setting | ||
| 14671 | * object is given, it takes precedence over `_.templateSettings` values. | ||
| 14672 | * | ||
| 14673 | * **Note:** In the development build `_.template` utilizes | ||
| 14674 | * [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl) | ||
| 14675 | * for easier debugging. | ||
| 14676 | * | ||
| 14677 | * For more information on precompiling templates see | ||
| 14678 | * [lodash's custom builds documentation](https://lodash.com/custom-builds). | ||
| 14679 | * | ||
| 14680 | * For more information on Chrome extension sandboxes see | ||
| 14681 | * [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval). | ||
| 14682 | * | ||
| 14683 | * @static | ||
| 14684 | * @since 0.1.0 | ||
| 14685 | * @memberOf _ | ||
| 14686 | * @category String | ||
| 14687 |      * @param {string} [string=''] The template string. | ||
| 14688 |      * @param {Object} [options={}] The options object. | ||
| 14689 |      * @param {RegExp} [options.escape=_.templateSettings.escape] | ||
| 14690 | * The HTML "escape" delimiter. | ||
| 14691 |      * @param {RegExp} [options.evaluate=_.templateSettings.evaluate] | ||
| 14692 | * The "evaluate" delimiter. | ||
| 14693 |      * @param {Object} [options.imports=_.templateSettings.imports] | ||
| 14694 | * An object to import into the template as free variables. | ||
| 14695 |      * @param {RegExp} [options.interpolate=_.templateSettings.interpolate] | ||
| 14696 | * The "interpolate" delimiter. | ||
| 14697 |      * @param {string} [options.sourceURL='lodash.templateSources[n]'] | ||
| 14698 | * The sourceURL of the compiled template. | ||
| 14699 |      * @param {string} [options.variable='obj'] | ||
| 14700 | * The data object variable name. | ||
| 14701 |      * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. | ||
| 14702 |      * @returns {Function} Returns the compiled template function. | ||
| 14703 | * @example | ||
| 14704 | * | ||
| 14705 | * // Use the "interpolate" delimiter to create a compiled template. | ||
| 14706 |      * var compiled = _.template('hello <%= user %>!'); | ||
| 14707 |      * compiled({ 'user': 'fred' }); | ||
| 14708 | * // => 'hello fred!' | ||
| 14709 | * | ||
| 14710 | * // Use the HTML "escape" delimiter to escape data property values. | ||
| 14711 |      * var compiled = _.template('<b><%- value %></b>'); | ||
| 14712 |      * compiled({ 'value': '<script>' }); | ||
| 14713 | * // => '<b><script></b>' | ||
| 14714 | * | ||
| 14715 | * // Use the "evaluate" delimiter to execute JavaScript and generate HTML. | ||
| 14716 |      * var compiled = _.template('<% _.forEach(users, function(user) { %><li><%- user %></li><% }); %>'); | ||
| 14717 |      * compiled({ 'users': ['fred', 'barney'] }); | ||
| 14718 | * // => '<li>fred</li><li>barney</li>' | ||
| 14719 | * | ||
| 14720 | * // Use the internal `print` function in "evaluate" delimiters. | ||
| 14721 |      * var compiled = _.template('<% print("hello " + user); %>!'); | ||
| 14722 |      * compiled({ 'user': 'barney' }); | ||
| 14723 | * // => 'hello barney!' | ||
| 14724 | * | ||
| 14725 | * // Use the ES template literal delimiter as an "interpolate" delimiter. | ||
| 14726 | * // Disable support by replacing the "interpolate" delimiter. | ||
| 14727 |      * var compiled = _.template('hello ${ user }!'); | ||
| 14728 |      * compiled({ 'user': 'pebbles' }); | ||
| 14729 | * // => 'hello pebbles!' | ||
| 14730 | * | ||
| 14731 | * // Use backslashes to treat delimiters as plain text. | ||
| 14732 |      * var compiled = _.template('<%= "\\<%- value %\\>" %>'); | ||
| 14733 |      * compiled({ 'value': 'ignored' }); | ||
| 14734 | * // => '<%- value %>' | ||
| 14735 | * | ||
| 14736 | * // Use the `imports` option to import `jQuery` as `jq`. | ||
| 14737 |      * var text = '<% jq.each(users, function(user) { %><li><%- user %></li><% }); %>'; | ||
| 14738 |      * var compiled = _.template(text, { 'imports': { 'jq': jQuery } }); | ||
| 14739 |      * compiled({ 'users': ['fred', 'barney'] }); | ||
| 14740 | * // => '<li>fred</li><li>barney</li>' | ||
| 14741 | * | ||
| 14742 | * // Use the `sourceURL` option to specify a custom sourceURL for the template. | ||
| 14743 |      * var compiled = _.template('hello <%= user %>!', { 'sourceURL': '/basic/greeting.jst' }); | ||
| 14744 | * compiled(data); | ||
| 14745 | * // => Find the source of "greeting.jst" under the Sources tab or Resources panel of the web inspector. | ||
| 14746 | * | ||
| 14747 | * // Use the `variable` option to ensure a with-statement isn't used in the compiled template. | ||
| 14748 |      * var compiled = _.template('hi <%= data.user %>!', { 'variable': 'data' }); | ||
| 14749 | * compiled.source; | ||
| 14750 |      * // => function(data) { | ||
| 14751 | * // var __t, __p = ''; | ||
| 14752 | * // __p += 'hi ' + ((__t = ( data.user )) == null ? '' : __t) + '!'; | ||
| 14753 | * // return __p; | ||
| 14754 | * // } | ||
| 14755 | * | ||
| 14756 | * // Use custom template delimiters. | ||
| 14757 |      * _.templateSettings.interpolate = /{{([\s\S]+?)}}/g; | ||
| 14758 |      * var compiled = _.template('hello {{ user }}!'); | ||
| 14759 |      * compiled({ 'user': 'mustache' }); | ||
| 14760 | * // => 'hello mustache!' | ||
| 14761 | * | ||
| 14762 | * // Use the `source` property to inline compiled templates for meaningful | ||
| 14763 | * // line numbers in error messages and stack traces. | ||
| 14764 | * fs.writeFileSync(path.join(process.cwd(), 'jst.js'), '\ | ||
| 14765 |      *   var JST = {\ | ||
| 14766 | * "main": ' + _.template(mainText).source + '\ | ||
| 14767 | * };\ | ||
| 14768 | * '); | ||
| 14769 | */ | ||
| 14770 |     function template(string, options, guard) { | ||
| 14771 | // Based on John Resig's `tmpl` implementation | ||
| 14772 | // (http://ejohn.org/blog/javascript-micro-templating/) | ||
| 14773 | // and Laura Doktorova's doT.js (https://github.com/olado/doT). | ||
| 14774 | var settings = lodash.templateSettings; | ||
| 14775 | |||
| 14776 |       if (guard && isIterateeCall(string, options, guard)) { | ||
| 14777 | options = undefined; | ||
| 14778 | } | ||
| 14779 | string = toString(string); | ||
| 14780 |       options = assignInWith({}, options, settings, customDefaultsAssignIn); | ||
| 14781 | |||
| 14782 |       var imports = assignInWith({}, options.imports, settings.imports, customDefaultsAssignIn), | ||
| 14783 | importsKeys = keys(imports), | ||
| 14784 | importsValues = baseValues(imports, importsKeys); | ||
| 14785 | |||
| 14786 | var isEscaping, | ||
| 14787 | isEvaluating, | ||
| 14788 | index = 0, | ||
| 14789 | interpolate = options.interpolate || reNoMatch, | ||
| 14790 | source = "__p += '"; | ||
| 14791 | |||
| 14792 | // Compile the regexp to match each delimiter. | ||
| 14793 | var reDelimiters = RegExp( | ||
| 14794 | (options.escape || reNoMatch).source + '|' + | ||
| 14795 | interpolate.source + '|' + | ||
| 14796 | (interpolate === reInterpolate ? reEsTemplate : reNoMatch).source + '|' + | ||
| 14797 | (options.evaluate || reNoMatch).source + '|$' | ||
| 14798 | , 'g'); | ||
| 14799 | |||
| 14800 | // Use a sourceURL for easier debugging. | ||
| 14801 | // The sourceURL gets injected into the source that's eval-ed, so be careful | ||
| 14802 | // with lookup (in case of e.g. prototype pollution), and strip newlines if any. | ||
| 14803 | // A newline wouldn't be a valid sourceURL anyway, and it'd enable code injection. | ||
| 14804 | var sourceURL = '//# sourceURL=' + | ||
| 14805 | (hasOwnProperty.call(options, 'sourceURL') | ||
| 14806 | ? (options.sourceURL + '').replace(/[\r\n]/g, ' ') | ||
| 14807 |           : ('lodash.templateSources[' + (++templateCounter) + ']') | ||
| 14808 | ) + '\n'; | ||
| 14809 | |||
| 14810 |       string.replace(reDelimiters, function(match, escapeValue, interpolateValue, esTemplateValue, evaluateValue, offset) { | ||
| 14811 | interpolateValue || (interpolateValue = esTemplateValue); | ||
| 14812 | |||
| 14813 | // Escape characters that can't be included in string literals. | ||
| 14814 | source += string.slice(index, offset).replace(reUnescapedString, escapeStringChar); | ||
| 14815 | |||
| 14816 | // Replace delimiters with snippets. | ||
| 14817 |         if (escapeValue) { | ||
| 14818 | isEscaping = true; | ||
| 14819 |           source += "' +\n__e(" + escapeValue + ") +\n'"; | ||
| 14820 | } | ||
| 14821 |         if (evaluateValue) { | ||
| 14822 | isEvaluating = true; | ||
| 14823 | source += "';\n" + evaluateValue + ";\n__p += '"; | ||
| 14824 | } | ||
| 14825 |         if (interpolateValue) { | ||
| 14826 |           source += "' +\n((__t = (" + interpolateValue + ")) == null ? '' : __t) +\n'"; | ||
| 14827 | } | ||
| 14828 | index = offset + match.length; | ||
| 14829 | |||
| 14830 | // The JS engine embedded in Adobe products needs `match` returned in | ||
| 14831 | // order to produce the correct `offset` value. | ||
| 14832 | return match; | ||
| 14833 | }); | ||
| 14834 | |||
| 14835 | source += "';\n"; | ||
| 14836 | |||
| 14837 | // If `variable` is not specified wrap a with-statement around the generated | ||
| 14838 | // code to add the data object to the top of the scope chain. | ||
| 14839 | // Like with sourceURL, we take care to not check the option's prototype, | ||
| 14840 | // as this configuration is a code injection vector. | ||
| 14841 | var variable = hasOwnProperty.call(options, 'variable') && options.variable; | ||
| 14842 |       if (!variable) { | ||
| 14843 |         source = 'with (obj) {\n' + source + '\n}\n'; | ||
| 14844 | } | ||
| 14845 | // Cleanup code by stripping empty strings. | ||
| 14846 | source = (isEvaluating ? source.replace(reEmptyStringLeading, '') : source) | ||
| 14847 | .replace(reEmptyStringMiddle, '$1') | ||
| 14848 | .replace(reEmptyStringTrailing, '$1;'); | ||
| 14849 | |||
| 14850 | // Frame code as the function body. | ||
| 14851 |       source = 'function(' + (variable || 'obj') + ') {\n' + | ||
| 14852 | (variable | ||
| 14853 | ? '' | ||
| 14854 |           : 'obj || (obj = {});\n' | ||
| 14855 | ) + | ||
| 14856 | "var __t, __p = ''" + | ||
| 14857 | (isEscaping | ||
| 14858 | ? ', __e = _.escape' | ||
| 14859 | : '' | ||
| 14860 | ) + | ||
| 14861 | (isEvaluating | ||
| 14862 | ? ', __j = Array.prototype.join;\n' + | ||
| 14863 |             "function print() { __p += __j.call(arguments, '') }\n" | ||
| 14864 | : ';\n' | ||
| 14865 | ) + | ||
| 14866 | source + | ||
| 14867 | 'return __p\n}'; | ||
| 14868 | |||
| 14869 |       var result = attempt(function() { | ||
| 14870 | return Function(importsKeys, sourceURL + 'return ' + source) | ||
| 14871 | .apply(undefined, importsValues); | ||
| 14872 | }); | ||
| 14873 | |||
| 14874 | // Provide the compiled function's source by its `toString` method or | ||
| 14875 | // the `source` property as a convenience for inlining compiled templates. | ||
| 14876 | result.source = source; | ||
| 14877 |       if (isError(result)) { | ||
| 14878 | throw result; | ||
| 14879 | } | ||
| 14880 | return result; | ||
| 14881 | } | ||
| 14882 | |||
| 14883 | /** | ||
| 14884 | * Converts `string`, as a whole, to lower case just like | ||
| 14885 | * [String#toLowerCase](https://mdn.io/toLowerCase). | ||
| 14886 | * | ||
| 14887 | * @static | ||
| 14888 | * @memberOf _ | ||
| 14889 | * @since 4.0.0 | ||
| 14890 | * @category String | ||
| 14891 |      * @param {string} [string=''] The string to convert. | ||
| 14892 |      * @returns {string} Returns the lower cased string. | ||
| 14893 | * @example | ||
| 14894 | * | ||
| 14895 |      * _.toLower('--Foo-Bar--'); | ||
| 14896 | * // => '--foo-bar--' | ||
| 14897 | * | ||
| 14898 |      * _.toLower('fooBar'); | ||
| 14899 | * // => 'foobar' | ||
| 14900 | * | ||
| 14901 |      * _.toLower('__FOO_BAR__'); | ||
| 14902 | * // => '__foo_bar__' | ||
| 14903 | */ | ||
| 14904 |     function toLower(value) { | ||
| 14905 | return toString(value).toLowerCase(); | ||
| 14906 | } | ||
| 14907 | |||
| 14908 | /** | ||
| 14909 | * Converts `string`, as a whole, to upper case just like | ||
| 14910 | * [String#toUpperCase](https://mdn.io/toUpperCase). | ||
| 14911 | * | ||
| 14912 | * @static | ||
| 14913 | * @memberOf _ | ||
| 14914 | * @since 4.0.0 | ||
| 14915 | * @category String | ||
| 14916 |      * @param {string} [string=''] The string to convert. | ||
| 14917 |      * @returns {string} Returns the upper cased string. | ||
| 14918 | * @example | ||
| 14919 | * | ||
| 14920 |      * _.toUpper('--foo-bar--'); | ||
| 14921 | * // => '--FOO-BAR--' | ||
| 14922 | * | ||
| 14923 |      * _.toUpper('fooBar'); | ||
| 14924 | * // => 'FOOBAR' | ||
| 14925 | * | ||
| 14926 |      * _.toUpper('__foo_bar__'); | ||
| 14927 | * // => '__FOO_BAR__' | ||
| 14928 | */ | ||
| 14929 |     function toUpper(value) { | ||
| 14930 | return toString(value).toUpperCase(); | ||
| 14931 | } | ||
| 14932 | |||
| 14933 | /** | ||
| 14934 | * Removes leading and trailing whitespace or specified characters from `string`. | ||
| 14935 | * | ||
| 14936 | * @static | ||
| 14937 | * @memberOf _ | ||
| 14938 | * @since 3.0.0 | ||
| 14939 | * @category String | ||
| 14940 |      * @param {string} [string=''] The string to trim. | ||
| 14941 |      * @param {string} [chars=whitespace] The characters to trim. | ||
| 14942 |      * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. | ||
| 14943 |      * @returns {string} Returns the trimmed string. | ||
| 14944 | * @example | ||
| 14945 | * | ||
| 14946 |      * _.trim('  abc  '); | ||
| 14947 | * // => 'abc' | ||
| 14948 | * | ||
| 14949 |      * _.trim('-_-abc-_-', '_-'); | ||
| 14950 | * // => 'abc' | ||
| 14951 | * | ||
| 14952 | * _.map([' foo ', ' bar '], _.trim); | ||
| 14953 | * // => ['foo', 'bar'] | ||
| 14954 | */ | ||
| 14955 |     function trim(string, chars, guard) { | ||
| 14956 | string = toString(string); | ||
| 14957 |       if (string && (guard || chars === undefined)) { | ||
| 14958 | return string.replace(reTrim, ''); | ||
| 14959 | } | ||
| 14960 |       if (!string || !(chars = baseToString(chars))) { | ||
| 14961 | return string; | ||
| 14962 | } | ||
| 14963 | var strSymbols = stringToArray(string), | ||
| 14964 | chrSymbols = stringToArray(chars), | ||
| 14965 | start = charsStartIndex(strSymbols, chrSymbols), | ||
| 14966 | end = charsEndIndex(strSymbols, chrSymbols) + 1; | ||
| 14967 | |||
| 14968 |       return castSlice(strSymbols, start, end).join(''); | ||
| 14969 | } | ||
| 14970 | |||
| 14971 | /** | ||
| 14972 | * Removes trailing whitespace or specified characters from `string`. | ||
| 14973 | * | ||
| 14974 | * @static | ||
| 14975 | * @memberOf _ | ||
| 14976 | * @since 4.0.0 | ||
| 14977 | * @category String | ||
| 14978 |      * @param {string} [string=''] The string to trim. | ||
| 14979 |      * @param {string} [chars=whitespace] The characters to trim. | ||
| 14980 |      * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. | ||
| 14981 |      * @returns {string} Returns the trimmed string. | ||
| 14982 | * @example | ||
| 14983 | * | ||
| 14984 |      * _.trimEnd('  abc  '); | ||
| 14985 | * // => ' abc' | ||
| 14986 | * | ||
| 14987 |      * _.trimEnd('-_-abc-_-', '_-'); | ||
| 14988 | * // => '-_-abc' | ||
| 14989 | */ | ||
| 14990 |     function trimEnd(string, chars, guard) { | ||
| 14991 | string = toString(string); | ||
| 14992 |       if (string && (guard || chars === undefined)) { | ||
| 14993 | return string.replace(reTrimEnd, ''); | ||
| 14994 | } | ||
| 14995 |       if (!string || !(chars = baseToString(chars))) { | ||
| 14996 | return string; | ||
| 14997 | } | ||
| 14998 | var strSymbols = stringToArray(string), | ||
| 14999 | end = charsEndIndex(strSymbols, stringToArray(chars)) + 1; | ||
| 15000 | |||
| 15001 |       return castSlice(strSymbols, 0, end).join(''); | ||
| 15002 | } | ||
| 15003 | |||
| 15004 | /** | ||
| 15005 | * Removes leading whitespace or specified characters from `string`. | ||
| 15006 | * | ||
| 15007 | * @static | ||
| 15008 | * @memberOf _ | ||
| 15009 | * @since 4.0.0 | ||
| 15010 | * @category String | ||
| 15011 |      * @param {string} [string=''] The string to trim. | ||
| 15012 |      * @param {string} [chars=whitespace] The characters to trim. | ||
| 15013 |      * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. | ||
| 15014 |      * @returns {string} Returns the trimmed string. | ||
| 15015 | * @example | ||
| 15016 | * | ||
| 15017 |      * _.trimStart('  abc  '); | ||
| 15018 | * // => 'abc ' | ||
| 15019 | * | ||
| 15020 |      * _.trimStart('-_-abc-_-', '_-'); | ||
| 15021 | * // => 'abc-_-' | ||
| 15022 | */ | ||
| 15023 |     function trimStart(string, chars, guard) { | ||
| 15024 | string = toString(string); | ||
| 15025 |       if (string && (guard || chars === undefined)) { | ||
| 15026 | return string.replace(reTrimStart, ''); | ||
| 15027 | } | ||
| 15028 |       if (!string || !(chars = baseToString(chars))) { | ||
| 15029 | return string; | ||
| 15030 | } | ||
| 15031 | var strSymbols = stringToArray(string), | ||
| 15032 | start = charsStartIndex(strSymbols, stringToArray(chars)); | ||
| 15033 | |||
| 15034 |       return castSlice(strSymbols, start).join(''); | ||
| 15035 | } | ||
| 15036 | |||
| 15037 | /** | ||
| 15038 | * Truncates `string` if it's longer than the given maximum string length. | ||
| 15039 | * The last characters of the truncated string are replaced with the omission | ||
| 15040 | * string which defaults to "...". | ||
| 15041 | * | ||
| 15042 | * @static | ||
| 15043 | * @memberOf _ | ||
| 15044 | * @since 4.0.0 | ||
| 15045 | * @category String | ||
| 15046 |      * @param {string} [string=''] The string to truncate. | ||
| 15047 |      * @param {Object} [options={}] The options object. | ||
| 15048 |      * @param {number} [options.length=30] The maximum string length. | ||
| 15049 |      * @param {string} [options.omission='...'] The string to indicate text is omitted. | ||
| 15050 |      * @param {RegExp|string} [options.separator] The separator pattern to truncate to. | ||
| 15051 |      * @returns {string} Returns the truncated string. | ||
| 15052 | * @example | ||
| 15053 | * | ||
| 15054 |      * _.truncate('hi-diddly-ho there, neighborino'); | ||
| 15055 | * // => 'hi-diddly-ho there, neighbo...' | ||
| 15056 | * | ||
| 15057 |      * _.truncate('hi-diddly-ho there, neighborino', { | ||
| 15058 | * 'length': 24, | ||
| 15059 | * 'separator': ' ' | ||
| 15060 | * }); | ||
| 15061 | * // => 'hi-diddly-ho there,...' | ||
| 15062 | * | ||
| 15063 |      * _.truncate('hi-diddly-ho there, neighborino', { | ||
| 15064 | * 'length': 24, | ||
| 15065 | * 'separator': /,? +/ | ||
| 15066 | * }); | ||
| 15067 | * // => 'hi-diddly-ho there...' | ||
| 15068 | * | ||
| 15069 |      * _.truncate('hi-diddly-ho there, neighborino', { | ||
| 15070 | * 'omission': ' [...]' | ||
| 15071 | * }); | ||
| 15072 | * // => 'hi-diddly-ho there, neig [...]' | ||
| 15073 | */ | ||
| 15074 |     function truncate(string, options) { | ||
| 15075 | var length = DEFAULT_TRUNC_LENGTH, | ||
| 15076 | omission = DEFAULT_TRUNC_OMISSION; | ||
| 15077 | |||
| 15078 |       if (isObject(options)) { | ||
| 15079 | var separator = 'separator' in options ? options.separator : separator; | ||
| 15080 | length = 'length' in options ? toInteger(options.length) : length; | ||
| 15081 | omission = 'omission' in options ? baseToString(options.omission) : omission; | ||
| 15082 | } | ||
| 15083 | string = toString(string); | ||
| 15084 | |||
| 15085 | var strLength = string.length; | ||
| 15086 |       if (hasUnicode(string)) { | ||
| 15087 | var strSymbols = stringToArray(string); | ||
| 15088 | strLength = strSymbols.length; | ||
| 15089 | } | ||
| 15090 |       if (length >= strLength) { | ||
| 15091 | return string; | ||
| 15092 | } | ||
| 15093 | var end = length - stringSize(omission); | ||
| 15094 |       if (end < 1) { | ||
| 15095 | return omission; | ||
| 15096 | } | ||
| 15097 | var result = strSymbols | ||
| 15098 |         ? castSlice(strSymbols, 0, end).join('') | ||
| 15099 | : string.slice(0, end); | ||
| 15100 | |||
| 15101 |       if (separator === undefined) { | ||
| 15102 | return result + omission; | ||
| 15103 | } | ||
| 15104 |       if (strSymbols) { | ||
| 15105 | end += (result.length - end); | ||
| 15106 | } | ||
| 15107 |       if (isRegExp(separator)) { | ||
| 15108 |         if (string.slice(end).search(separator)) { | ||
| 15109 | var match, | ||
| 15110 | substring = result; | ||
| 15111 | |||
| 15112 |           if (!separator.global) { | ||
| 15113 | separator = RegExp(separator.source, toString(reFlags.exec(separator)) + 'g'); | ||
| 15114 | } | ||
| 15115 | separator.lastIndex = 0; | ||
| 15116 |           while ((match = separator.exec(substring))) { | ||
| 15117 | var newEnd = match.index; | ||
| 15118 | } | ||
| 15119 | result = result.slice(0, newEnd === undefined ? end : newEnd); | ||
| 15120 | } | ||
| 15121 |       } else if (string.indexOf(baseToString(separator), end) != end) { | ||
| 15122 | var index = result.lastIndexOf(separator); | ||
| 15123 |         if (index > -1) { | ||
| 15124 | result = result.slice(0, index); | ||
| 15125 | } | ||
| 15126 | } | ||
| 15127 | return result + omission; | ||
| 15128 | } | ||
| 15129 | |||
| 15130 | /** | ||
| 15131 | * The inverse of `_.escape`; this method converts the HTML entities | ||
| 15132 | * `&`, `<`, `>`, `"`, and `'` in `string` to | ||
| 15133 | * their corresponding characters. | ||
| 15134 | * | ||
| 15135 | * **Note:** No other HTML entities are unescaped. To unescape additional | ||
| 15136 | * HTML entities use a third-party library like [_he_](https://mths.be/he). | ||
| 15137 | * | ||
| 15138 | * @static | ||
| 15139 | * @memberOf _ | ||
| 15140 | * @since 0.6.0 | ||
| 15141 | * @category String | ||
| 15142 |      * @param {string} [string=''] The string to unescape. | ||
| 15143 |      * @returns {string} Returns the unescaped string. | ||
| 15144 | * @example | ||
| 15145 | * | ||
| 15146 |      * _.unescape('fred, barney, & pebbles'); | ||
| 15147 | * // => 'fred, barney, & pebbles' | ||
| 15148 | */ | ||
| 15149 |     function unescape(string) { | ||
| 15150 | string = toString(string); | ||
| 15151 | return (string && reHasEscapedHtml.test(string)) | ||
| 15152 | ? string.replace(reEscapedHtml, unescapeHtmlChar) | ||
| 15153 | : string; | ||
| 15154 | } | ||
| 15155 | |||
| 15156 | /** | ||
| 15157 | * Converts `string`, as space separated words, to upper case. | ||
| 15158 | * | ||
| 15159 | * @static | ||
| 15160 | * @memberOf _ | ||
| 15161 | * @since 4.0.0 | ||
| 15162 | * @category String | ||
| 15163 |      * @param {string} [string=''] The string to convert. | ||
| 15164 |      * @returns {string} Returns the upper cased string. | ||
| 15165 | * @example | ||
| 15166 | * | ||
| 15167 |      * _.upperCase('--foo-bar'); | ||
| 15168 | * // => 'FOO BAR' | ||
| 15169 | * | ||
| 15170 |      * _.upperCase('fooBar'); | ||
| 15171 | * // => 'FOO BAR' | ||
| 15172 | * | ||
| 15173 |      * _.upperCase('__foo_bar__'); | ||
| 15174 | * // => 'FOO BAR' | ||
| 15175 | */ | ||
| 15176 |     var upperCase = createCompounder(function(result, word, index) { | ||
| 15177 | return result + (index ? ' ' : '') + word.toUpperCase(); | ||
| 15178 | }); | ||
| 15179 | |||
| 15180 | /** | ||
| 15181 | * Converts the first character of `string` to upper case. | ||
| 15182 | * | ||
| 15183 | * @static | ||
| 15184 | * @memberOf _ | ||
| 15185 | * @since 4.0.0 | ||
| 15186 | * @category String | ||
| 15187 |      * @param {string} [string=''] The string to convert. | ||
| 15188 |      * @returns {string} Returns the converted string. | ||
| 15189 | * @example | ||
| 15190 | * | ||
| 15191 |      * _.upperFirst('fred'); | ||
| 15192 | * // => 'Fred' | ||
| 15193 | * | ||
| 15194 |      * _.upperFirst('FRED'); | ||
| 15195 | * // => 'FRED' | ||
| 15196 | */ | ||
| 15197 |     var upperFirst = createCaseFirst('toUpperCase'); | ||
| 15198 | |||
| 15199 | /** | ||
| 15200 | * Splits `string` into an array of its words. | ||
| 15201 | * | ||
| 15202 | * @static | ||
| 15203 | * @memberOf _ | ||
| 15204 | * @since 3.0.0 | ||
| 15205 | * @category String | ||
| 15206 |      * @param {string} [string=''] The string to inspect. | ||
| 15207 |      * @param {RegExp|string} [pattern] The pattern to match words. | ||
| 15208 |      * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. | ||
| 15209 |      * @returns {Array} Returns the words of `string`. | ||
| 15210 | * @example | ||
| 15211 | * | ||
| 15212 |      * _.words('fred, barney, & pebbles'); | ||
| 15213 | * // => ['fred', 'barney', 'pebbles'] | ||
| 15214 | * | ||
| 15215 |      * _.words('fred, barney, & pebbles', /[^, ]+/g); | ||
| 15216 | * // => ['fred', 'barney', '&', 'pebbles'] | ||
| 15217 | */ | ||
| 15218 |     function words(string, pattern, guard) { | ||
| 15219 | string = toString(string); | ||
| 15220 | pattern = guard ? undefined : pattern; | ||
| 15221 | |||
| 15222 |       if (pattern === undefined) { | ||
| 15223 | return hasUnicodeWord(string) ? unicodeWords(string) : asciiWords(string); | ||
| 15224 | } | ||
| 15225 | return string.match(pattern) || []; | ||
| 15226 | } | ||
| 15227 | |||
| 15228 | /*------------------------------------------------------------------------*/ | ||
| 15229 | |||
| 15230 | /** | ||
| 15231 | * Attempts to invoke `func`, returning either the result or the caught error | ||
| 15232 | * object. Any additional arguments are provided to `func` when it's invoked. | ||
| 15233 | * | ||
| 15234 | * @static | ||
| 15235 | * @memberOf _ | ||
| 15236 | * @since 3.0.0 | ||
| 15237 | * @category Util | ||
| 15238 |      * @param {Function} func The function to attempt. | ||
| 15239 |      * @param {...*} [args] The arguments to invoke `func` with. | ||
| 15240 |      * @returns {*} Returns the `func` result or error object. | ||
| 15241 | * @example | ||
| 15242 | * | ||
| 15243 | * // Avoid throwing errors for invalid selectors. | ||
| 15244 |      * var elements = _.attempt(function(selector) { | ||
| 15245 | * return document.querySelectorAll(selector); | ||
| 15246 | * }, '>_>'); | ||
| 15247 | * | ||
| 15248 |      * if (_.isError(elements)) { | ||
| 15249 | * elements = []; | ||
| 15250 | * } | ||
| 15251 | */ | ||
| 15252 |     var attempt = baseRest(function(func, args) { | ||
| 15253 |       try { | ||
| 15254 | return apply(func, undefined, args); | ||
| 15255 |       } catch (e) { | ||
| 15256 | return isError(e) ? e : new Error(e); | ||
| 15257 | } | ||
| 15258 | }); | ||
| 15259 | |||
| 15260 | /** | ||
| 15261 | * Binds methods of an object to the object itself, overwriting the existing | ||
| 15262 | * method. | ||
| 15263 | * | ||
| 15264 | * **Note:** This method doesn't set the "length" property of bound functions. | ||
| 15265 | * | ||
| 15266 | * @static | ||
| 15267 | * @since 0.1.0 | ||
| 15268 | * @memberOf _ | ||
| 15269 | * @category Util | ||
| 15270 |      * @param {Object} object The object to bind and assign the bound methods to. | ||
| 15271 |      * @param {...(string|string[])} methodNames The object method names to bind. | ||
| 15272 |      * @returns {Object} Returns `object`. | ||
| 15273 | * @example | ||
| 15274 | * | ||
| 15275 |      * var view = { | ||
| 15276 | * 'label': 'docs', | ||
| 15277 |      *   'click': function() { | ||
| 15278 |      *     console.log('clicked ' + this.label); | ||
| 15279 | * } | ||
| 15280 | * }; | ||
| 15281 | * | ||
| 15282 | * _.bindAll(view, ['click']); | ||
| 15283 |      * jQuery(element).on('click', view.click); | ||
| 15284 | * // => Logs 'clicked docs' when clicked. | ||
| 15285 | */ | ||
| 15286 |     var bindAll = flatRest(function(object, methodNames) { | ||
| 15287 |       arrayEach(methodNames, function(key) { | ||
| 15288 | key = toKey(key); | ||
| 15289 | baseAssignValue(object, key, bind(object[key], object)); | ||
| 15290 | }); | ||
| 15291 | return object; | ||
| 15292 | }); | ||
| 15293 | |||
| 15294 | /** | ||
| 15295 | * Creates a function that iterates over `pairs` and invokes the corresponding | ||
| 15296 | * function of the first predicate to return truthy. The predicate-function | ||
| 15297 | * pairs are invoked with the `this` binding and arguments of the created | ||
| 15298 | * function. | ||
| 15299 | * | ||
| 15300 | * @static | ||
| 15301 | * @memberOf _ | ||
| 15302 | * @since 4.0.0 | ||
| 15303 | * @category Util | ||
| 15304 |      * @param {Array} pairs The predicate-function pairs. | ||
| 15305 |      * @returns {Function} Returns the new composite function. | ||
| 15306 | * @example | ||
| 15307 | * | ||
| 15308 | * var func = _.cond([ | ||
| 15309 |      *   [_.matches({ 'a': 1 }),           _.constant('matches A')], | ||
| 15310 |      *   [_.conforms({ 'b': _.isNumber }), _.constant('matches B')], | ||
| 15311 |      *   [_.stubTrue,                      _.constant('no match')] | ||
| 15312 | * ]); | ||
| 15313 | * | ||
| 15314 |      * func({ 'a': 1, 'b': 2 }); | ||
| 15315 | * // => 'matches A' | ||
| 15316 | * | ||
| 15317 |      * func({ 'a': 0, 'b': 1 }); | ||
| 15318 | * // => 'matches B' | ||
| 15319 | * | ||
| 15320 |      * func({ 'a': '1', 'b': '2' }); | ||
| 15321 | * // => 'no match' | ||
| 15322 | */ | ||
| 15323 |     function cond(pairs) { | ||
| 15324 | var length = pairs == null ? 0 : pairs.length, | ||
| 15325 | toIteratee = getIteratee(); | ||
| 15326 | |||
| 15327 |       pairs = !length ? [] : arrayMap(pairs, function(pair) { | ||
| 15328 |         if (typeof pair[1] != 'function') { | ||
| 15329 | throw new TypeError(FUNC_ERROR_TEXT); | ||
| 15330 | } | ||
| 15331 | return [toIteratee(pair[0]), pair[1]]; | ||
| 15332 | }); | ||
| 15333 | |||
| 15334 |       return baseRest(function(args) { | ||
| 15335 | var index = -1; | ||
| 15336 |         while (++index < length) { | ||
| 15337 | var pair = pairs[index]; | ||
| 15338 |           if (apply(pair[0], this, args)) { | ||
| 15339 | return apply(pair[1], this, args); | ||
| 15340 | } | ||
| 15341 | } | ||
| 15342 | }); | ||
| 15343 | } | ||
| 15344 | |||
| 15345 | /** | ||
| 15346 | * Creates a function that invokes the predicate properties of `source` with | ||
| 15347 | * the corresponding property values of a given object, returning `true` if | ||
| 15348 | * all predicates return truthy, else `false`. | ||
| 15349 | * | ||
| 15350 | * **Note:** The created function is equivalent to `_.conformsTo` with | ||
| 15351 | * `source` partially applied. | ||
| 15352 | * | ||
| 15353 | * @static | ||
| 15354 | * @memberOf _ | ||
| 15355 | * @since 4.0.0 | ||
| 15356 | * @category Util | ||
| 15357 |      * @param {Object} source The object of property predicates to conform to. | ||
| 15358 |      * @returns {Function} Returns the new spec function. | ||
| 15359 | * @example | ||
| 15360 | * | ||
| 15361 | * var objects = [ | ||
| 15362 |      *   { 'a': 2, 'b': 1 }, | ||
| 15363 |      *   { 'a': 1, 'b': 2 } | ||
| 15364 | * ]; | ||
| 15365 | * | ||
| 15366 |      * _.filter(objects, _.conforms({ 'b': function(n) { return n > 1; } })); | ||
| 15367 |      * // => [{ 'a': 1, 'b': 2 }] | ||
| 15368 | */ | ||
| 15369 |     function conforms(source) { | ||
| 15370 | return baseConforms(baseClone(source, CLONE_DEEP_FLAG)); | ||
| 15371 | } | ||
| 15372 | |||
| 15373 | /** | ||
| 15374 | * Creates a function that returns `value`. | ||
| 15375 | * | ||
| 15376 | * @static | ||
| 15377 | * @memberOf _ | ||
| 15378 | * @since 2.4.0 | ||
| 15379 | * @category Util | ||
| 15380 |      * @param {*} value The value to return from the new function. | ||
| 15381 |      * @returns {Function} Returns the new constant function. | ||
| 15382 | * @example | ||
| 15383 | * | ||
| 15384 |      * var objects = _.times(2, _.constant({ 'a': 1 })); | ||
| 15385 | * | ||
| 15386 | * console.log(objects); | ||
| 15387 |      * // => [{ 'a': 1 }, { 'a': 1 }] | ||
| 15388 | * | ||
| 15389 | * console.log(objects[0] === objects[1]); | ||
| 15390 | * // => true | ||
| 15391 | */ | ||
| 15392 |     function constant(value) { | ||
| 15393 |       return function() { | ||
| 15394 | return value; | ||
| 15395 | }; | ||
| 15396 | } | ||
| 15397 | |||
| 15398 | /** | ||
| 15399 | * Checks `value` to determine whether a default value should be returned in | ||
| 15400 | * its place. The `defaultValue` is returned if `value` is `NaN`, `null`, | ||
| 15401 | * or `undefined`. | ||
| 15402 | * | ||
| 15403 | * @static | ||
| 15404 | * @memberOf _ | ||
| 15405 | * @since 4.14.0 | ||
| 15406 | * @category Util | ||
| 15407 |      * @param {*} value The value to check. | ||
| 15408 |      * @param {*} defaultValue The default value. | ||
| 15409 |      * @returns {*} Returns the resolved value. | ||
| 15410 | * @example | ||
| 15411 | * | ||
| 15412 | * _.defaultTo(1, 10); | ||
| 15413 | * // => 1 | ||
| 15414 | * | ||
| 15415 | * _.defaultTo(undefined, 10); | ||
| 15416 | * // => 10 | ||
| 15417 | */ | ||
| 15418 |     function defaultTo(value, defaultValue) { | ||
| 15419 | return (value == null || value !== value) ? defaultValue : value; | ||
| 15420 | } | ||
| 15421 | |||
| 15422 | /** | ||
| 15423 | * Creates a function that returns the result of invoking the given functions | ||
| 15424 | * with the `this` binding of the created function, where each successive | ||
| 15425 | * invocation is supplied the return value of the previous. | ||
| 15426 | * | ||
| 15427 | * @static | ||
| 15428 | * @memberOf _ | ||
| 15429 | * @since 3.0.0 | ||
| 15430 | * @category Util | ||
| 15431 |      * @param {...(Function|Function[])} [funcs] The functions to invoke. | ||
| 15432 |      * @returns {Function} Returns the new composite function. | ||
| 15433 | * @see _.flowRight | ||
| 15434 | * @example | ||
| 15435 | * | ||
| 15436 |      * function square(n) { | ||
| 15437 | * return n * n; | ||
| 15438 | * } | ||
| 15439 | * | ||
| 15440 | * var addSquare = _.flow([_.add, square]); | ||
| 15441 | * addSquare(1, 2); | ||
| 15442 | * // => 9 | ||
| 15443 | */ | ||
| 15444 | var flow = createFlow(); | ||
| 15445 | |||
| 15446 | /** | ||
| 15447 | * This method is like `_.flow` except that it creates a function that | ||
| 15448 | * invokes the given functions from right to left. | ||
| 15449 | * | ||
| 15450 | * @static | ||
| 15451 | * @since 3.0.0 | ||
| 15452 | * @memberOf _ | ||
| 15453 | * @category Util | ||
| 15454 |      * @param {...(Function|Function[])} [funcs] The functions to invoke. | ||
| 15455 |      * @returns {Function} Returns the new composite function. | ||
| 15456 | * @see _.flow | ||
| 15457 | * @example | ||
| 15458 | * | ||
| 15459 |      * function square(n) { | ||
| 15460 | * return n * n; | ||
| 15461 | * } | ||
| 15462 | * | ||
| 15463 | * var addSquare = _.flowRight([square, _.add]); | ||
| 15464 | * addSquare(1, 2); | ||
| 15465 | * // => 9 | ||
| 15466 | */ | ||
| 15467 | var flowRight = createFlow(true); | ||
| 15468 | |||
| 15469 | /** | ||
| 15470 | * This method returns the first argument it receives. | ||
| 15471 | * | ||
| 15472 | * @static | ||
| 15473 | * @since 0.1.0 | ||
| 15474 | * @memberOf _ | ||
| 15475 | * @category Util | ||
| 15476 |      * @param {*} value Any value. | ||
| 15477 |      * @returns {*} Returns `value`. | ||
| 15478 | * @example | ||
| 15479 | * | ||
| 15480 |      * var object = { 'a': 1 }; | ||
| 15481 | * | ||
| 15482 | * console.log(_.identity(object) === object); | ||
| 15483 | * // => true | ||
| 15484 | */ | ||
| 15485 |     function identity(value) { | ||
| 15486 | return value; | ||
| 15487 | } | ||
| 15488 | |||
| 15489 | /** | ||
| 15490 | * Creates a function that invokes `func` with the arguments of the created | ||
| 15491 | * function. If `func` is a property name, the created function returns the | ||
| 15492 | * property value for a given element. If `func` is an array or object, the | ||
| 15493 | * created function returns `true` for elements that contain the equivalent | ||
| 15494 | * source properties, otherwise it returns `false`. | ||
| 15495 | * | ||
| 15496 | * @static | ||
| 15497 | * @since 4.0.0 | ||
| 15498 | * @memberOf _ | ||
| 15499 | * @category Util | ||
| 15500 |      * @param {*} [func=_.identity] The value to convert to a callback. | ||
| 15501 |      * @returns {Function} Returns the callback. | ||
| 15502 | * @example | ||
| 15503 | * | ||
| 15504 | * var users = [ | ||
| 15505 |      *   { 'user': 'barney', 'age': 36, 'active': true }, | ||
| 15506 |      *   { 'user': 'fred',   'age': 40, 'active': false } | ||
| 15507 | * ]; | ||
| 15508 | * | ||
| 15509 | * // The `_.matches` iteratee shorthand. | ||
| 15510 |      * _.filter(users, _.iteratee({ 'user': 'barney', 'active': true })); | ||
| 15511 |      * // => [{ 'user': 'barney', 'age': 36, 'active': true }] | ||
| 15512 | * | ||
| 15513 | * // The `_.matchesProperty` iteratee shorthand. | ||
| 15514 | * _.filter(users, _.iteratee(['user', 'fred'])); | ||
| 15515 |      * // => [{ 'user': 'fred', 'age': 40 }] | ||
| 15516 | * | ||
| 15517 | * // The `_.property` iteratee shorthand. | ||
| 15518 |      * _.map(users, _.iteratee('user')); | ||
| 15519 | * // => ['barney', 'fred'] | ||
| 15520 | * | ||
| 15521 | * // Create custom iteratee shorthands. | ||
| 15522 |      * _.iteratee = _.wrap(_.iteratee, function(iteratee, func) { | ||
| 15523 |      *   return !_.isRegExp(func) ? iteratee(func) : function(string) { | ||
| 15524 | * return func.test(string); | ||
| 15525 | * }; | ||
| 15526 | * }); | ||
| 15527 | * | ||
| 15528 | * _.filter(['abc', 'def'], /ef/); | ||
| 15529 | * // => ['def'] | ||
| 15530 | */ | ||
| 15531 |     function iteratee(func) { | ||
| 15532 | return baseIteratee(typeof func == 'function' ? func : baseClone(func, CLONE_DEEP_FLAG)); | ||
| 15533 | } | ||
| 15534 | |||
| 15535 | /** | ||
| 15536 | * Creates a function that performs a partial deep comparison between a given | ||
| 15537 | * object and `source`, returning `true` if the given object has equivalent | ||
| 15538 | * property values, else `false`. | ||
| 15539 | * | ||
| 15540 | * **Note:** The created function is equivalent to `_.isMatch` with `source` | ||
| 15541 | * partially applied. | ||
| 15542 | * | ||
| 15543 | * Partial comparisons will match empty array and empty object `source` | ||
| 15544 | * values against any array or object value, respectively. See `_.isEqual` | ||
| 15545 | * for a list of supported value comparisons. | ||
| 15546 | * | ||
| 15547 | * @static | ||
| 15548 | * @memberOf _ | ||
| 15549 | * @since 3.0.0 | ||
| 15550 | * @category Util | ||
| 15551 |      * @param {Object} source The object of property values to match. | ||
| 15552 |      * @returns {Function} Returns the new spec function. | ||
| 15553 | * @example | ||
| 15554 | * | ||
| 15555 | * var objects = [ | ||
| 15556 |      *   { 'a': 1, 'b': 2, 'c': 3 }, | ||
| 15557 |      *   { 'a': 4, 'b': 5, 'c': 6 } | ||
| 15558 | * ]; | ||
| 15559 | * | ||
| 15560 |      * _.filter(objects, _.matches({ 'a': 4, 'c': 6 })); | ||
| 15561 |      * // => [{ 'a': 4, 'b': 5, 'c': 6 }] | ||
| 15562 | */ | ||
| 15563 |     function matches(source) { | ||
| 15564 | return baseMatches(baseClone(source, CLONE_DEEP_FLAG)); | ||
| 15565 | } | ||
| 15566 | |||
| 15567 | /** | ||
| 15568 | * Creates a function that performs a partial deep comparison between the | ||
| 15569 | * value at `path` of a given object to `srcValue`, returning `true` if the | ||
| 15570 | * object value is equivalent, else `false`. | ||
| 15571 | * | ||
| 15572 | * **Note:** Partial comparisons will match empty array and empty object | ||
| 15573 | * `srcValue` values against any array or object value, respectively. See | ||
| 15574 | * `_.isEqual` for a list of supported value comparisons. | ||
| 15575 | * | ||
| 15576 | * @static | ||
| 15577 | * @memberOf _ | ||
| 15578 | * @since 3.2.0 | ||
| 15579 | * @category Util | ||
| 15580 |      * @param {Array|string} path The path of the property to get. | ||
| 15581 |      * @param {*} srcValue The value to match. | ||
| 15582 |      * @returns {Function} Returns the new spec function. | ||
| 15583 | * @example | ||
| 15584 | * | ||
| 15585 | * var objects = [ | ||
| 15586 |      *   { 'a': 1, 'b': 2, 'c': 3 }, | ||
| 15587 |      *   { 'a': 4, 'b': 5, 'c': 6 } | ||
| 15588 | * ]; | ||
| 15589 | * | ||
| 15590 |      * _.find(objects, _.matchesProperty('a', 4)); | ||
| 15591 |      * // => { 'a': 4, 'b': 5, 'c': 6 } | ||
| 15592 | */ | ||
| 15593 |     function matchesProperty(path, srcValue) { | ||
| 15594 | return baseMatchesProperty(path, baseClone(srcValue, CLONE_DEEP_FLAG)); | ||
| 15595 | } | ||
| 15596 | |||
| 15597 | /** | ||
| 15598 | * Creates a function that invokes the method at `path` of a given object. | ||
| 15599 | * Any additional arguments are provided to the invoked method. | ||
| 15600 | * | ||
| 15601 | * @static | ||
| 15602 | * @memberOf _ | ||
| 15603 | * @since 3.7.0 | ||
| 15604 | * @category Util | ||
| 15605 |      * @param {Array|string} path The path of the method to invoke. | ||
| 15606 |      * @param {...*} [args] The arguments to invoke the method with. | ||
| 15607 |      * @returns {Function} Returns the new invoker function. | ||
| 15608 | * @example | ||
| 15609 | * | ||
| 15610 | * var objects = [ | ||
| 15611 |      *   { 'a': { 'b': _.constant(2) } }, | ||
| 15612 |      *   { 'a': { 'b': _.constant(1) } } | ||
| 15613 | * ]; | ||
| 15614 | * | ||
| 15615 |      * _.map(objects, _.method('a.b')); | ||
| 15616 | * // => [2, 1] | ||
| 15617 | * | ||
| 15618 | * _.map(objects, _.method(['a', 'b'])); | ||
| 15619 | * // => [2, 1] | ||
| 15620 | */ | ||
| 15621 |     var method = baseRest(function(path, args) { | ||
| 15622 |       return function(object) { | ||
| 15623 | return baseInvoke(object, path, args); | ||
| 15624 | }; | ||
| 15625 | }); | ||
| 15626 | |||
| 15627 | /** | ||
| 15628 | * The opposite of `_.method`; this method creates a function that invokes | ||
| 15629 | * the method at a given path of `object`. Any additional arguments are | ||
| 15630 | * provided to the invoked method. | ||
| 15631 | * | ||
| 15632 | * @static | ||
| 15633 | * @memberOf _ | ||
| 15634 | * @since 3.7.0 | ||
| 15635 | * @category Util | ||
| 15636 |      * @param {Object} object The object to query. | ||
| 15637 |      * @param {...*} [args] The arguments to invoke the method with. | ||
| 15638 |      * @returns {Function} Returns the new invoker function. | ||
| 15639 | * @example | ||
| 15640 | * | ||
| 15641 | * var array = _.times(3, _.constant), | ||
| 15642 |      *     object = { 'a': array, 'b': array, 'c': array }; | ||
| 15643 | * | ||
| 15644 | * _.map(['a[2]', 'c[0]'], _.methodOf(object)); | ||
| 15645 | * // => [2, 0] | ||
| 15646 | * | ||
| 15647 | * _.map([['a', '2'], ['c', '0']], _.methodOf(object)); | ||
| 15648 | * // => [2, 0] | ||
| 15649 | */ | ||
| 15650 |     var methodOf = baseRest(function(object, args) { | ||
| 15651 |       return function(path) { | ||
| 15652 | return baseInvoke(object, path, args); | ||
| 15653 | }; | ||
| 15654 | }); | ||
| 15655 | |||
| 15656 | /** | ||
| 15657 | * Adds all own enumerable string keyed function properties of a source | ||
| 15658 | * object to the destination object. If `object` is a function, then methods | ||
| 15659 | * are added to its prototype as well. | ||
| 15660 | * | ||
| 15661 | * **Note:** Use `_.runInContext` to create a pristine `lodash` function to | ||
| 15662 | * avoid conflicts caused by modifying the original. | ||
| 15663 | * | ||
| 15664 | * @static | ||
| 15665 | * @since 0.1.0 | ||
| 15666 | * @memberOf _ | ||
| 15667 | * @category Util | ||
| 15668 |      * @param {Function|Object} [object=lodash] The destination object. | ||
| 15669 |      * @param {Object} source The object of functions to add. | ||
| 15670 |      * @param {Object} [options={}] The options object. | ||
| 15671 |      * @param {boolean} [options.chain=true] Specify whether mixins are chainable. | ||
| 15672 |      * @returns {Function|Object} Returns `object`. | ||
| 15673 | * @example | ||
| 15674 | * | ||
| 15675 |      * function vowels(string) { | ||
| 15676 |      *   return _.filter(string, function(v) { | ||
| 15677 | * return /[aeiou]/i.test(v); | ||
| 15678 | * }); | ||
| 15679 | * } | ||
| 15680 | * | ||
| 15681 |      * _.mixin({ 'vowels': vowels }); | ||
| 15682 |      * _.vowels('fred'); | ||
| 15683 | * // => ['e'] | ||
| 15684 | * | ||
| 15685 |      * _('fred').vowels().value(); | ||
| 15686 | * // => ['e'] | ||
| 15687 | * | ||
| 15688 |      * _.mixin({ 'vowels': vowels }, { 'chain': false }); | ||
| 15689 |      * _('fred').vowels(); | ||
| 15690 | * // => ['e'] | ||
| 15691 | */ | ||
| 15692 |     function mixin(object, source, options) { | ||
| 15693 | var props = keys(source), | ||
| 15694 | methodNames = baseFunctions(source, props); | ||
| 15695 | |||
| 15696 | if (options == null && | ||
| 15697 |           !(isObject(source) && (methodNames.length || !props.length))) { | ||
| 15698 | options = source; | ||
| 15699 | source = object; | ||
| 15700 | object = this; | ||
| 15701 | methodNames = baseFunctions(source, keys(source)); | ||
| 15702 | } | ||
| 15703 | var chain = !(isObject(options) && 'chain' in options) || !!options.chain, | ||
| 15704 | isFunc = isFunction(object); | ||
| 15705 | |||
| 15706 |       arrayEach(methodNames, function(methodName) { | ||
| 15707 | var func = source[methodName]; | ||
| 15708 | object[methodName] = func; | ||
| 15709 |         if (isFunc) { | ||
| 15710 |           object.prototype[methodName] = function() { | ||
| 15711 | var chainAll = this.__chain__; | ||
| 15712 |             if (chain || chainAll) { | ||
| 15713 | var result = object(this.__wrapped__), | ||
| 15714 | actions = result.__actions__ = copyArray(this.__actions__); | ||
| 15715 | |||
| 15716 |               actions.push({ 'func': func, 'args': arguments, 'thisArg': object }); | ||
| 15717 | result.__chain__ = chainAll; | ||
| 15718 | return result; | ||
| 15719 | } | ||
| 15720 | return func.apply(object, arrayPush([this.value()], arguments)); | ||
| 15721 | }; | ||
| 15722 | } | ||
| 15723 | }); | ||
| 15724 | |||
| 15725 | return object; | ||
| 15726 | } | ||
| 15727 | |||
| 15728 | /** | ||
| 15729 | * Reverts the `_` variable to its previous value and returns a reference to | ||
| 15730 | * the `lodash` function. | ||
| 15731 | * | ||
| 15732 | * @static | ||
| 15733 | * @since 0.1.0 | ||
| 15734 | * @memberOf _ | ||
| 15735 | * @category Util | ||
| 15736 |      * @returns {Function} Returns the `lodash` function. | ||
| 15737 | * @example | ||
| 15738 | * | ||
| 15739 | * var lodash = _.noConflict(); | ||
| 15740 | */ | ||
| 15741 |     function noConflict() { | ||
| 15742 |       if (root._ === this) { | ||
| 15743 | root._ = oldDash; | ||
| 15744 | } | ||
| 15745 | return this; | ||
| 15746 | } | ||
| 15747 | |||
| 15748 | /** | ||
| 15749 | * This method returns `undefined`. | ||
| 15750 | * | ||
| 15751 | * @static | ||
| 15752 | * @memberOf _ | ||
| 15753 | * @since 2.3.0 | ||
| 15754 | * @category Util | ||
| 15755 | * @example | ||
| 15756 | * | ||
| 15757 | * _.times(2, _.noop); | ||
| 15758 | * // => [undefined, undefined] | ||
| 15759 | */ | ||
| 15760 |     function noop() { | ||
| 15761 | // No operation performed. | ||
| 15762 | } | ||
| 15763 | |||
| 15764 | /** | ||
| 15765 | * Creates a function that gets the argument at index `n`. If `n` is negative, | ||
| 15766 | * the nth argument from the end is returned. | ||
| 15767 | * | ||
| 15768 | * @static | ||
| 15769 | * @memberOf _ | ||
| 15770 | * @since 4.0.0 | ||
| 15771 | * @category Util | ||
| 15772 |      * @param {number} [n=0] The index of the argument to return. | ||
| 15773 |      * @returns {Function} Returns the new pass-thru function. | ||
| 15774 | * @example | ||
| 15775 | * | ||
| 15776 | * var func = _.nthArg(1); | ||
| 15777 |      * func('a', 'b', 'c', 'd'); | ||
| 15778 | * // => 'b' | ||
| 15779 | * | ||
| 15780 | * var func = _.nthArg(-2); | ||
| 15781 |      * func('a', 'b', 'c', 'd'); | ||
| 15782 | * // => 'c' | ||
| 15783 | */ | ||
| 15784 |     function nthArg(n) { | ||
| 15785 | n = toInteger(n); | ||
| 15786 |       return baseRest(function(args) { | ||
| 15787 | return baseNth(args, n); | ||
| 15788 | }); | ||
| 15789 | } | ||
| 15790 | |||
| 15791 | /** | ||
| 15792 | * Creates a function that invokes `iteratees` with the arguments it receives | ||
| 15793 | * and returns their results. | ||
| 15794 | * | ||
| 15795 | * @static | ||
| 15796 | * @memberOf _ | ||
| 15797 | * @since 4.0.0 | ||
| 15798 | * @category Util | ||
| 15799 |      * @param {...(Function|Function[])} [iteratees=[_.identity]] | ||
| 15800 | * The iteratees to invoke. | ||
| 15801 |      * @returns {Function} Returns the new function. | ||
| 15802 | * @example | ||
| 15803 | * | ||
| 15804 | * var func = _.over([Math.max, Math.min]); | ||
| 15805 | * | ||
| 15806 | * func(1, 2, 3, 4); | ||
| 15807 | * // => [4, 1] | ||
| 15808 | */ | ||
| 15809 | var over = createOver(arrayMap); | ||
| 15810 | |||
| 15811 | /** | ||
| 15812 | * Creates a function that checks if **all** of the `predicates` return | ||
| 15813 | * truthy when invoked with the arguments it receives. | ||
| 15814 | * | ||
| 15815 | * @static | ||
| 15816 | * @memberOf _ | ||
| 15817 | * @since 4.0.0 | ||
| 15818 | * @category Util | ||
| 15819 |      * @param {...(Function|Function[])} [predicates=[_.identity]] | ||
| 15820 | * The predicates to check. | ||
| 15821 |      * @returns {Function} Returns the new function. | ||
| 15822 | * @example | ||
| 15823 | * | ||
| 15824 | * var func = _.overEvery([Boolean, isFinite]); | ||
| 15825 | * | ||
| 15826 |      * func('1'); | ||
| 15827 | * // => true | ||
| 15828 | * | ||
| 15829 | * func(null); | ||
| 15830 | * // => false | ||
| 15831 | * | ||
| 15832 | * func(NaN); | ||
| 15833 | * // => false | ||
| 15834 | */ | ||
| 15835 | var overEvery = createOver(arrayEvery); | ||
| 15836 | |||
| 15837 | /** | ||
| 15838 | * Creates a function that checks if **any** of the `predicates` return | ||
| 15839 | * truthy when invoked with the arguments it receives. | ||
| 15840 | * | ||
| 15841 | * @static | ||
| 15842 | * @memberOf _ | ||
| 15843 | * @since 4.0.0 | ||
| 15844 | * @category Util | ||
| 15845 |      * @param {...(Function|Function[])} [predicates=[_.identity]] | ||
| 15846 | * The predicates to check. | ||
| 15847 |      * @returns {Function} Returns the new function. | ||
| 15848 | * @example | ||
| 15849 | * | ||
| 15850 | * var func = _.overSome([Boolean, isFinite]); | ||
| 15851 | * | ||
| 15852 |      * func('1'); | ||
| 15853 | * // => true | ||
| 15854 | * | ||
| 15855 | * func(null); | ||
| 15856 | * // => true | ||
| 15857 | * | ||
| 15858 | * func(NaN); | ||
| 15859 | * // => false | ||
| 15860 | */ | ||
| 15861 | var overSome = createOver(arraySome); | ||
| 15862 | |||
| 15863 | /** | ||
| 15864 | * Creates a function that returns the value at `path` of a given object. | ||
| 15865 | * | ||
| 15866 | * @static | ||
| 15867 | * @memberOf _ | ||
| 15868 | * @since 2.4.0 | ||
| 15869 | * @category Util | ||
| 15870 |      * @param {Array|string} path The path of the property to get. | ||
| 15871 |      * @returns {Function} Returns the new accessor function. | ||
| 15872 | * @example | ||
| 15873 | * | ||
| 15874 | * var objects = [ | ||
| 15875 |      *   { 'a': { 'b': 2 } }, | ||
| 15876 |      *   { 'a': { 'b': 1 } } | ||
| 15877 | * ]; | ||
| 15878 | * | ||
| 15879 |      * _.map(objects, _.property('a.b')); | ||
| 15880 | * // => [2, 1] | ||
| 15881 | * | ||
| 15882 | * _.map(_.sortBy(objects, _.property(['a', 'b'])), 'a.b'); | ||
| 15883 | * // => [1, 2] | ||
| 15884 | */ | ||
| 15885 |     function property(path) { | ||
| 15886 | return isKey(path) ? baseProperty(toKey(path)) : basePropertyDeep(path); | ||
| 15887 | } | ||
| 15888 | |||
| 15889 | /** | ||
| 15890 | * The opposite of `_.property`; this method creates a function that returns | ||
| 15891 | * the value at a given path of `object`. | ||
| 15892 | * | ||
| 15893 | * @static | ||
| 15894 | * @memberOf _ | ||
| 15895 | * @since 3.0.0 | ||
| 15896 | * @category Util | ||
| 15897 |      * @param {Object} object The object to query. | ||
| 15898 |      * @returns {Function} Returns the new accessor function. | ||
| 15899 | * @example | ||
| 15900 | * | ||
| 15901 | * var array = [0, 1, 2], | ||
| 15902 |      *     object = { 'a': array, 'b': array, 'c': array }; | ||
| 15903 | * | ||
| 15904 | * _.map(['a[2]', 'c[0]'], _.propertyOf(object)); | ||
| 15905 | * // => [2, 0] | ||
| 15906 | * | ||
| 15907 | * _.map([['a', '2'], ['c', '0']], _.propertyOf(object)); | ||
| 15908 | * // => [2, 0] | ||
| 15909 | */ | ||
| 15910 |     function propertyOf(object) { | ||
| 15911 |       return function(path) { | ||
| 15912 | return object == null ? undefined : baseGet(object, path); | ||
| 15913 | }; | ||
| 15914 | } | ||
| 15915 | |||
| 15916 | /** | ||
| 15917 | * Creates an array of numbers (positive and/or negative) progressing from | ||
| 15918 | * `start` up to, but not including, `end`. A step of `-1` is used if a negative | ||
| 15919 | * `start` is specified without an `end` or `step`. If `end` is not specified, | ||
| 15920 | * it's set to `start` with `start` then set to `0`. | ||
| 15921 | * | ||
| 15922 | * **Note:** JavaScript follows the IEEE-754 standard for resolving | ||
| 15923 | * floating-point values which can produce unexpected results. | ||
| 15924 | * | ||
| 15925 | * @static | ||
| 15926 | * @since 0.1.0 | ||
| 15927 | * @memberOf _ | ||
| 15928 | * @category Util | ||
| 15929 |      * @param {number} [start=0] The start of the range. | ||
| 15930 |      * @param {number} end The end of the range. | ||
| 15931 |      * @param {number} [step=1] The value to increment or decrement by. | ||
| 15932 |      * @returns {Array} Returns the range of numbers. | ||
| 15933 | * @see _.inRange, _.rangeRight | ||
| 15934 | * @example | ||
| 15935 | * | ||
| 15936 | * _.range(4); | ||
| 15937 | * // => [0, 1, 2, 3] | ||
| 15938 | * | ||
| 15939 | * _.range(-4); | ||
| 15940 | * // => [0, -1, -2, -3] | ||
| 15941 | * | ||
| 15942 | * _.range(1, 5); | ||
| 15943 | * // => [1, 2, 3, 4] | ||
| 15944 | * | ||
| 15945 | * _.range(0, 20, 5); | ||
| 15946 | * // => [0, 5, 10, 15] | ||
| 15947 | * | ||
| 15948 | * _.range(0, -4, -1); | ||
| 15949 | * // => [0, -1, -2, -3] | ||
| 15950 | * | ||
| 15951 | * _.range(1, 4, 0); | ||
| 15952 | * // => [1, 1, 1] | ||
| 15953 | * | ||
| 15954 | * _.range(0); | ||
| 15955 | * // => [] | ||
| 15956 | */ | ||
| 15957 | var range = createRange(); | ||
| 15958 | |||
| 15959 | /** | ||
| 15960 | * This method is like `_.range` except that it populates values in | ||
| 15961 | * descending order. | ||
| 15962 | * | ||
| 15963 | * @static | ||
| 15964 | * @memberOf _ | ||
| 15965 | * @since 4.0.0 | ||
| 15966 | * @category Util | ||
| 15967 |      * @param {number} [start=0] The start of the range. | ||
| 15968 |      * @param {number} end The end of the range. | ||
| 15969 |      * @param {number} [step=1] The value to increment or decrement by. | ||
| 15970 |      * @returns {Array} Returns the range of numbers. | ||
| 15971 | * @see _.inRange, _.range | ||
| 15972 | * @example | ||
| 15973 | * | ||
| 15974 | * _.rangeRight(4); | ||
| 15975 | * // => [3, 2, 1, 0] | ||
| 15976 | * | ||
| 15977 | * _.rangeRight(-4); | ||
| 15978 | * // => [-3, -2, -1, 0] | ||
| 15979 | * | ||
| 15980 | * _.rangeRight(1, 5); | ||
| 15981 | * // => [4, 3, 2, 1] | ||
| 15982 | * | ||
| 15983 | * _.rangeRight(0, 20, 5); | ||
| 15984 | * // => [15, 10, 5, 0] | ||
| 15985 | * | ||
| 15986 | * _.rangeRight(0, -4, -1); | ||
| 15987 | * // => [-3, -2, -1, 0] | ||
| 15988 | * | ||
| 15989 | * _.rangeRight(1, 4, 0); | ||
| 15990 | * // => [1, 1, 1] | ||
| 15991 | * | ||
| 15992 | * _.rangeRight(0); | ||
| 15993 | * // => [] | ||
| 15994 | */ | ||
| 15995 | var rangeRight = createRange(true); | ||
| 15996 | |||
| 15997 | /** | ||
| 15998 | * This method returns a new empty array. | ||
| 15999 | * | ||
| 16000 | * @static | ||
| 16001 | * @memberOf _ | ||
| 16002 | * @since 4.13.0 | ||
| 16003 | * @category Util | ||
| 16004 |      * @returns {Array} Returns the new empty array. | ||
| 16005 | * @example | ||
| 16006 | * | ||
| 16007 | * var arrays = _.times(2, _.stubArray); | ||
| 16008 | * | ||
| 16009 | * console.log(arrays); | ||
| 16010 | * // => [[], []] | ||
| 16011 | * | ||
| 16012 | * console.log(arrays[0] === arrays[1]); | ||
| 16013 | * // => false | ||
| 16014 | */ | ||
| 16015 |     function stubArray() { | ||
| 16016 | return []; | ||
| 16017 | } | ||
| 16018 | |||
| 16019 | /** | ||
| 16020 | * This method returns `false`. | ||
| 16021 | * | ||
| 16022 | * @static | ||
| 16023 | * @memberOf _ | ||
| 16024 | * @since 4.13.0 | ||
| 16025 | * @category Util | ||
| 16026 |      * @returns {boolean} Returns `false`. | ||
| 16027 | * @example | ||
| 16028 | * | ||
| 16029 | * _.times(2, _.stubFalse); | ||
| 16030 | * // => [false, false] | ||
| 16031 | */ | ||
| 16032 |     function stubFalse() { | ||
| 16033 | return false; | ||
| 16034 | } | ||
| 16035 | |||
| 16036 | /** | ||
| 16037 | * This method returns a new empty object. | ||
| 16038 | * | ||
| 16039 | * @static | ||
| 16040 | * @memberOf _ | ||
| 16041 | * @since 4.13.0 | ||
| 16042 | * @category Util | ||
| 16043 |      * @returns {Object} Returns the new empty object. | ||
| 16044 | * @example | ||
| 16045 | * | ||
| 16046 | * var objects = _.times(2, _.stubObject); | ||
| 16047 | * | ||
| 16048 | * console.log(objects); | ||
| 16049 |      * // => [{}, {}] | ||
| 16050 | * | ||
| 16051 | * console.log(objects[0] === objects[1]); | ||
| 16052 | * // => false | ||
| 16053 | */ | ||
| 16054 |     function stubObject() { | ||
| 16055 |       return {}; | ||
| 16056 | } | ||
| 16057 | |||
| 16058 | /** | ||
| 16059 | * This method returns an empty string. | ||
| 16060 | * | ||
| 16061 | * @static | ||
| 16062 | * @memberOf _ | ||
| 16063 | * @since 4.13.0 | ||
| 16064 | * @category Util | ||
| 16065 |      * @returns {string} Returns the empty string. | ||
| 16066 | * @example | ||
| 16067 | * | ||
| 16068 | * _.times(2, _.stubString); | ||
| 16069 | * // => ['', ''] | ||
| 16070 | */ | ||
| 16071 |     function stubString() { | ||
| 16072 | return ''; | ||
| 16073 | } | ||
| 16074 | |||
| 16075 | /** | ||
| 16076 | * This method returns `true`. | ||
| 16077 | * | ||
| 16078 | * @static | ||
| 16079 | * @memberOf _ | ||
| 16080 | * @since 4.13.0 | ||
| 16081 | * @category Util | ||
| 16082 |      * @returns {boolean} Returns `true`. | ||
| 16083 | * @example | ||
| 16084 | * | ||
| 16085 | * _.times(2, _.stubTrue); | ||
| 16086 | * // => [true, true] | ||
| 16087 | */ | ||
| 16088 |     function stubTrue() { | ||
| 16089 | return true; | ||
| 16090 | } | ||
| 16091 | |||
| 16092 | /** | ||
| 16093 | * Invokes the iteratee `n` times, returning an array of the results of | ||
| 16094 | * each invocation. The iteratee is invoked with one argument; (index). | ||
| 16095 | * | ||
| 16096 | * @static | ||
| 16097 | * @since 0.1.0 | ||
| 16098 | * @memberOf _ | ||
| 16099 | * @category Util | ||
| 16100 |      * @param {number} n The number of times to invoke `iteratee`. | ||
| 16101 |      * @param {Function} [iteratee=_.identity] The function invoked per iteration. | ||
| 16102 |      * @returns {Array} Returns the array of results. | ||
| 16103 | * @example | ||
| 16104 | * | ||
| 16105 | * _.times(3, String); | ||
| 16106 | * // => ['0', '1', '2'] | ||
| 16107 | * | ||
| 16108 | * _.times(4, _.constant(0)); | ||
| 16109 | * // => [0, 0, 0, 0] | ||
| 16110 | */ | ||
| 16111 |     function times(n, iteratee) { | ||
| 16112 | n = toInteger(n); | ||
| 16113 |       if (n < 1 || n > MAX_SAFE_INTEGER) { | ||
| 16114 | return []; | ||
| 16115 | } | ||
| 16116 | var index = MAX_ARRAY_LENGTH, | ||
| 16117 | length = nativeMin(n, MAX_ARRAY_LENGTH); | ||
| 16118 | |||
| 16119 | iteratee = getIteratee(iteratee); | ||
| 16120 | n -= MAX_ARRAY_LENGTH; | ||
| 16121 | |||
| 16122 | var result = baseTimes(length, iteratee); | ||
| 16123 |       while (++index < n) { | ||
| 16124 | iteratee(index); | ||
| 16125 | } | ||
| 16126 | return result; | ||
| 16127 | } | ||
| 16128 | |||
| 16129 | /** | ||
| 16130 | * Converts `value` to a property path array. | ||
| 16131 | * | ||
| 16132 | * @static | ||
| 16133 | * @memberOf _ | ||
| 16134 | * @since 4.0.0 | ||
| 16135 | * @category Util | ||
| 16136 |      * @param {*} value The value to convert. | ||
| 16137 |      * @returns {Array} Returns the new property path array. | ||
| 16138 | * @example | ||
| 16139 | * | ||
| 16140 |      * _.toPath('a.b.c'); | ||
| 16141 | * // => ['a', 'b', 'c'] | ||
| 16142 | * | ||
| 16143 |      * _.toPath('a[0].b.c'); | ||
| 16144 | * // => ['a', '0', 'b', 'c'] | ||
| 16145 | */ | ||
| 16146 |     function toPath(value) { | ||
| 16147 |       if (isArray(value)) { | ||
| 16148 | return arrayMap(value, toKey); | ||
| 16149 | } | ||
| 16150 | return isSymbol(value) ? [value] : copyArray(stringToPath(toString(value))); | ||
| 16151 | } | ||
| 16152 | |||
| 16153 | /** | ||
| 16154 | * Generates a unique ID. If `prefix` is given, the ID is appended to it. | ||
| 16155 | * | ||
| 16156 | * @static | ||
| 16157 | * @since 0.1.0 | ||
| 16158 | * @memberOf _ | ||
| 16159 | * @category Util | ||
| 16160 |      * @param {string} [prefix=''] The value to prefix the ID with. | ||
| 16161 |      * @returns {string} Returns the unique ID. | ||
| 16162 | * @example | ||
| 16163 | * | ||
| 16164 |      * _.uniqueId('contact_'); | ||
| 16165 | * // => 'contact_104' | ||
| 16166 | * | ||
| 16167 | * _.uniqueId(); | ||
| 16168 | * // => '105' | ||
| 16169 | */ | ||
| 16170 |     function uniqueId(prefix) { | ||
| 16171 | var id = ++idCounter; | ||
| 16172 | return toString(prefix) + id; | ||
| 16173 | } | ||
| 16174 | |||
| 16175 | /*------------------------------------------------------------------------*/ | ||
| 16176 | |||
| 16177 | /** | ||
| 16178 | * Adds two numbers. | ||
| 16179 | * | ||
| 16180 | * @static | ||
| 16181 | * @memberOf _ | ||
| 16182 | * @since 3.4.0 | ||
| 16183 | * @category Math | ||
| 16184 |      * @param {number} augend The first number in an addition. | ||
| 16185 |      * @param {number} addend The second number in an addition. | ||
| 16186 |      * @returns {number} Returns the total. | ||
| 16187 | * @example | ||
| 16188 | * | ||
| 16189 | * _.add(6, 4); | ||
| 16190 | * // => 10 | ||
| 16191 | */ | ||
| 16192 |     var add = createMathOperation(function(augend, addend) { | ||
| 16193 | return augend + addend; | ||
| 16194 | }, 0); | ||
| 16195 | |||
| 16196 | /** | ||
| 16197 | * Computes `number` rounded up to `precision`. | ||
| 16198 | * | ||
| 16199 | * @static | ||
| 16200 | * @memberOf _ | ||
| 16201 | * @since 3.10.0 | ||
| 16202 | * @category Math | ||
| 16203 |      * @param {number} number The number to round up. | ||
| 16204 |      * @param {number} [precision=0] The precision to round up to. | ||
| 16205 |      * @returns {number} Returns the rounded up number. | ||
| 16206 | * @example | ||
| 16207 | * | ||
| 16208 | * _.ceil(4.006); | ||
| 16209 | * // => 5 | ||
| 16210 | * | ||
| 16211 | * _.ceil(6.004, 2); | ||
| 16212 | * // => 6.01 | ||
| 16213 | * | ||
| 16214 | * _.ceil(6040, -2); | ||
| 16215 | * // => 6100 | ||
| 16216 | */ | ||
| 16217 |     var ceil = createRound('ceil'); | ||
| 16218 | |||
| 16219 | /** | ||
| 16220 | * Divide two numbers. | ||
| 16221 | * | ||
| 16222 | * @static | ||
| 16223 | * @memberOf _ | ||
| 16224 | * @since 4.7.0 | ||
| 16225 | * @category Math | ||
| 16226 |      * @param {number} dividend The first number in a division. | ||
| 16227 |      * @param {number} divisor The second number in a division. | ||
| 16228 |      * @returns {number} Returns the quotient. | ||
| 16229 | * @example | ||
| 16230 | * | ||
| 16231 | * _.divide(6, 4); | ||
| 16232 | * // => 1.5 | ||
| 16233 | */ | ||
| 16234 |     var divide = createMathOperation(function(dividend, divisor) { | ||
| 16235 | return dividend / divisor; | ||
| 16236 | }, 1); | ||
| 16237 | |||
| 16238 | /** | ||
| 16239 | * Computes `number` rounded down to `precision`. | ||
| 16240 | * | ||
| 16241 | * @static | ||
| 16242 | * @memberOf _ | ||
| 16243 | * @since 3.10.0 | ||
| 16244 | * @category Math | ||
| 16245 |      * @param {number} number The number to round down. | ||
| 16246 |      * @param {number} [precision=0] The precision to round down to. | ||
| 16247 |      * @returns {number} Returns the rounded down number. | ||
| 16248 | * @example | ||
| 16249 | * | ||
| 16250 | * _.floor(4.006); | ||
| 16251 | * // => 4 | ||
| 16252 | * | ||
| 16253 | * _.floor(0.046, 2); | ||
| 16254 | * // => 0.04 | ||
| 16255 | * | ||
| 16256 | * _.floor(4060, -2); | ||
| 16257 | * // => 4000 | ||
| 16258 | */ | ||
| 16259 |     var floor = createRound('floor'); | ||
| 16260 | |||
| 16261 | /** | ||
| 16262 | * Computes the maximum value of `array`. If `array` is empty or falsey, | ||
| 16263 | * `undefined` is returned. | ||
| 16264 | * | ||
| 16265 | * @static | ||
| 16266 | * @since 0.1.0 | ||
| 16267 | * @memberOf _ | ||
| 16268 | * @category Math | ||
| 16269 |      * @param {Array} array The array to iterate over. | ||
| 16270 |      * @returns {*} Returns the maximum value. | ||
| 16271 | * @example | ||
| 16272 | * | ||
| 16273 | * _.max([4, 2, 8, 6]); | ||
| 16274 | * // => 8 | ||
| 16275 | * | ||
| 16276 | * _.max([]); | ||
| 16277 | * // => undefined | ||
| 16278 | */ | ||
| 16279 |     function max(array) { | ||
| 16280 | return (array && array.length) | ||
| 16281 | ? baseExtremum(array, identity, baseGt) | ||
| 16282 | : undefined; | ||
| 16283 | } | ||
| 16284 | |||
| 16285 | /** | ||
| 16286 | * This method is like `_.max` except that it accepts `iteratee` which is | ||
| 16287 | * invoked for each element in `array` to generate the criterion by which | ||
| 16288 | * the value is ranked. The iteratee is invoked with one argument: (value). | ||
| 16289 | * | ||
| 16290 | * @static | ||
| 16291 | * @memberOf _ | ||
| 16292 | * @since 4.0.0 | ||
| 16293 | * @category Math | ||
| 16294 |      * @param {Array} array The array to iterate over. | ||
| 16295 |      * @param {Function} [iteratee=_.identity] The iteratee invoked per element. | ||
| 16296 |      * @returns {*} Returns the maximum value. | ||
| 16297 | * @example | ||
| 16298 | * | ||
| 16299 |      * var objects = [{ 'n': 1 }, { 'n': 2 }]; | ||
| 16300 | * | ||
| 16301 |      * _.maxBy(objects, function(o) { return o.n; }); | ||
| 16302 |      * // => { 'n': 2 } | ||
| 16303 | * | ||
| 16304 | * // The `_.property` iteratee shorthand. | ||
| 16305 | * _.maxBy(objects, 'n'); | ||
| 16306 |      * // => { 'n': 2 } | ||
| 16307 | */ | ||
| 16308 |     function maxBy(array, iteratee) { | ||
| 16309 | return (array && array.length) | ||
| 16310 | ? baseExtremum(array, getIteratee(iteratee, 2), baseGt) | ||
| 16311 | : undefined; | ||
| 16312 | } | ||
| 16313 | |||
| 16314 | /** | ||
| 16315 | * Computes the mean of the values in `array`. | ||
| 16316 | * | ||
| 16317 | * @static | ||
| 16318 | * @memberOf _ | ||
| 16319 | * @since 4.0.0 | ||
| 16320 | * @category Math | ||
| 16321 |      * @param {Array} array The array to iterate over. | ||
| 16322 |      * @returns {number} Returns the mean. | ||
| 16323 | * @example | ||
| 16324 | * | ||
| 16325 | * _.mean([4, 2, 8, 6]); | ||
| 16326 | * // => 5 | ||
| 16327 | */ | ||
| 16328 |     function mean(array) { | ||
| 16329 | return baseMean(array, identity); | ||
| 16330 | } | ||
| 16331 | |||
| 16332 | /** | ||
| 16333 | * This method is like `_.mean` except that it accepts `iteratee` which is | ||
| 16334 | * invoked for each element in `array` to generate the value to be averaged. | ||
| 16335 | * The iteratee is invoked with one argument: (value). | ||
| 16336 | * | ||
| 16337 | * @static | ||
| 16338 | * @memberOf _ | ||
| 16339 | * @since 4.7.0 | ||
| 16340 | * @category Math | ||
| 16341 |      * @param {Array} array The array to iterate over. | ||
| 16342 |      * @param {Function} [iteratee=_.identity] The iteratee invoked per element. | ||
| 16343 |      * @returns {number} Returns the mean. | ||
| 16344 | * @example | ||
| 16345 | * | ||
| 16346 |      * var objects = [{ 'n': 4 }, { 'n': 2 }, { 'n': 8 }, { 'n': 6 }]; | ||
| 16347 | * | ||
| 16348 |      * _.meanBy(objects, function(o) { return o.n; }); | ||
| 16349 | * // => 5 | ||
| 16350 | * | ||
| 16351 | * // The `_.property` iteratee shorthand. | ||
| 16352 | * _.meanBy(objects, 'n'); | ||
| 16353 | * // => 5 | ||
| 16354 | */ | ||
| 16355 |     function meanBy(array, iteratee) { | ||
| 16356 | return baseMean(array, getIteratee(iteratee, 2)); | ||
| 16357 | } | ||
| 16358 | |||
| 16359 | /** | ||
| 16360 | * Computes the minimum value of `array`. If `array` is empty or falsey, | ||
| 16361 | * `undefined` is returned. | ||
| 16362 | * | ||
| 16363 | * @static | ||
| 16364 | * @since 0.1.0 | ||
| 16365 | * @memberOf _ | ||
| 16366 | * @category Math | ||
| 16367 |      * @param {Array} array The array to iterate over. | ||
| 16368 |      * @returns {*} Returns the minimum value. | ||
| 16369 | * @example | ||
| 16370 | * | ||
| 16371 | * _.min([4, 2, 8, 6]); | ||
| 16372 | * // => 2 | ||
| 16373 | * | ||
| 16374 | * _.min([]); | ||
| 16375 | * // => undefined | ||
| 16376 | */ | ||
| 16377 |     function min(array) { | ||
| 16378 | return (array && array.length) | ||
| 16379 | ? baseExtremum(array, identity, baseLt) | ||
| 16380 | : undefined; | ||
| 16381 | } | ||
| 16382 | |||
| 16383 | /** | ||
| 16384 | * This method is like `_.min` except that it accepts `iteratee` which is | ||
| 16385 | * invoked for each element in `array` to generate the criterion by which | ||
| 16386 | * the value is ranked. The iteratee is invoked with one argument: (value). | ||
| 16387 | * | ||
| 16388 | * @static | ||
| 16389 | * @memberOf _ | ||
| 16390 | * @since 4.0.0 | ||
| 16391 | * @category Math | ||
| 16392 |      * @param {Array} array The array to iterate over. | ||
| 16393 |      * @param {Function} [iteratee=_.identity] The iteratee invoked per element. | ||
| 16394 |      * @returns {*} Returns the minimum value. | ||
| 16395 | * @example | ||
| 16396 | * | ||
| 16397 |      * var objects = [{ 'n': 1 }, { 'n': 2 }]; | ||
| 16398 | * | ||
| 16399 |      * _.minBy(objects, function(o) { return o.n; }); | ||
| 16400 |      * // => { 'n': 1 } | ||
| 16401 | * | ||
| 16402 | * // The `_.property` iteratee shorthand. | ||
| 16403 | * _.minBy(objects, 'n'); | ||
| 16404 |      * // => { 'n': 1 } | ||
| 16405 | */ | ||
| 16406 |     function minBy(array, iteratee) { | ||
| 16407 | return (array && array.length) | ||
| 16408 | ? baseExtremum(array, getIteratee(iteratee, 2), baseLt) | ||
| 16409 | : undefined; | ||
| 16410 | } | ||
| 16411 | |||
| 16412 | /** | ||
| 16413 | * Multiply two numbers. | ||
| 16414 | * | ||
| 16415 | * @static | ||
| 16416 | * @memberOf _ | ||
| 16417 | * @since 4.7.0 | ||
| 16418 | * @category Math | ||
| 16419 |      * @param {number} multiplier The first number in a multiplication. | ||
| 16420 |      * @param {number} multiplicand The second number in a multiplication. | ||
| 16421 |      * @returns {number} Returns the product. | ||
| 16422 | * @example | ||
| 16423 | * | ||
| 16424 | * _.multiply(6, 4); | ||
| 16425 | * // => 24 | ||
| 16426 | */ | ||
| 16427 |     var multiply = createMathOperation(function(multiplier, multiplicand) { | ||
| 16428 | return multiplier * multiplicand; | ||
| 16429 | }, 1); | ||
| 16430 | |||
| 16431 | /** | ||
| 16432 | * Computes `number` rounded to `precision`. | ||
| 16433 | * | ||
| 16434 | * @static | ||
| 16435 | * @memberOf _ | ||
| 16436 | * @since 3.10.0 | ||
| 16437 | * @category Math | ||
| 16438 |      * @param {number} number The number to round. | ||
| 16439 |      * @param {number} [precision=0] The precision to round to. | ||
| 16440 |      * @returns {number} Returns the rounded number. | ||
| 16441 | * @example | ||
| 16442 | * | ||
| 16443 | * _.round(4.006); | ||
| 16444 | * // => 4 | ||
| 16445 | * | ||
| 16446 | * _.round(4.006, 2); | ||
| 16447 | * // => 4.01 | ||
| 16448 | * | ||
| 16449 | * _.round(4060, -2); | ||
| 16450 | * // => 4100 | ||
| 16451 | */ | ||
| 16452 |     var round = createRound('round'); | ||
| 16453 | |||
| 16454 | /** | ||
| 16455 | * Subtract two numbers. | ||
| 16456 | * | ||
| 16457 | * @static | ||
| 16458 | * @memberOf _ | ||
| 16459 | * @since 4.0.0 | ||
| 16460 | * @category Math | ||
| 16461 |      * @param {number} minuend The first number in a subtraction. | ||
| 16462 |      * @param {number} subtrahend The second number in a subtraction. | ||
| 16463 |      * @returns {number} Returns the difference. | ||
| 16464 | * @example | ||
| 16465 | * | ||
| 16466 | * _.subtract(6, 4); | ||
| 16467 | * // => 2 | ||
| 16468 | */ | ||
| 16469 |     var subtract = createMathOperation(function(minuend, subtrahend) { | ||
| 16470 | return minuend - subtrahend; | ||
| 16471 | }, 0); | ||
| 16472 | |||
| 16473 | /** | ||
| 16474 | * Computes the sum of the values in `array`. | ||
| 16475 | * | ||
| 16476 | * @static | ||
| 16477 | * @memberOf _ | ||
| 16478 | * @since 3.4.0 | ||
| 16479 | * @category Math | ||
| 16480 |      * @param {Array} array The array to iterate over. | ||
| 16481 |      * @returns {number} Returns the sum. | ||
| 16482 | * @example | ||
| 16483 | * | ||
| 16484 | * _.sum([4, 2, 8, 6]); | ||
| 16485 | * // => 20 | ||
| 16486 | */ | ||
| 16487 |     function sum(array) { | ||
| 16488 | return (array && array.length) | ||
| 16489 | ? baseSum(array, identity) | ||
| 16490 | : 0; | ||
| 16491 | } | ||
| 16492 | |||
| 16493 | /** | ||
| 16494 | * This method is like `_.sum` except that it accepts `iteratee` which is | ||
| 16495 | * invoked for each element in `array` to generate the value to be summed. | ||
| 16496 | * The iteratee is invoked with one argument: (value). | ||
| 16497 | * | ||
| 16498 | * @static | ||
| 16499 | * @memberOf _ | ||
| 16500 | * @since 4.0.0 | ||
| 16501 | * @category Math | ||
| 16502 |      * @param {Array} array The array to iterate over. | ||
| 16503 |      * @param {Function} [iteratee=_.identity] The iteratee invoked per element. | ||
| 16504 |      * @returns {number} Returns the sum. | ||
| 16505 | * @example | ||
| 16506 | * | ||
| 16507 |      * var objects = [{ 'n': 4 }, { 'n': 2 }, { 'n': 8 }, { 'n': 6 }]; | ||
| 16508 | * | ||
| 16509 |      * _.sumBy(objects, function(o) { return o.n; }); | ||
| 16510 | * // => 20 | ||
| 16511 | * | ||
| 16512 | * // The `_.property` iteratee shorthand. | ||
| 16513 | * _.sumBy(objects, 'n'); | ||
| 16514 | * // => 20 | ||
| 16515 | */ | ||
| 16516 |     function sumBy(array, iteratee) { | ||
| 16517 | return (array && array.length) | ||
| 16518 | ? baseSum(array, getIteratee(iteratee, 2)) | ||
| 16519 | : 0; | ||
| 16520 | } | ||
| 16521 | |||
| 16522 | /*------------------------------------------------------------------------*/ | ||
| 16523 | |||
| 16524 | // Add methods that return wrapped values in chain sequences. | ||
| 16525 | lodash.after = after; | ||
| 16526 | lodash.ary = ary; | ||
| 16527 | lodash.assign = assign; | ||
| 16528 | lodash.assignIn = assignIn; | ||
| 16529 | lodash.assignInWith = assignInWith; | ||
| 16530 | lodash.assignWith = assignWith; | ||
| 16531 | lodash.at = at; | ||
| 16532 | lodash.before = before; | ||
| 16533 | lodash.bind = bind; | ||
| 16534 | lodash.bindAll = bindAll; | ||
| 16535 | lodash.bindKey = bindKey; | ||
| 16536 | lodash.castArray = castArray; | ||
| 16537 | lodash.chain = chain; | ||
| 16538 | lodash.chunk = chunk; | ||
| 16539 | lodash.compact = compact; | ||
| 16540 | lodash.concat = concat; | ||
| 16541 | lodash.cond = cond; | ||
| 16542 | lodash.conforms = conforms; | ||
| 16543 | lodash.constant = constant; | ||
| 16544 | lodash.countBy = countBy; | ||
| 16545 | lodash.create = create; | ||
| 16546 | lodash.curry = curry; | ||
| 16547 | lodash.curryRight = curryRight; | ||
| 16548 | lodash.debounce = debounce; | ||
| 16549 | lodash.defaults = defaults; | ||
| 16550 | lodash.defaultsDeep = defaultsDeep; | ||
| 16551 | lodash.defer = defer; | ||
| 16552 | lodash.delay = delay; | ||
| 16553 | lodash.difference = difference; | ||
| 16554 | lodash.differenceBy = differenceBy; | ||
| 16555 | lodash.differenceWith = differenceWith; | ||
| 16556 | lodash.drop = drop; | ||
| 16557 | lodash.dropRight = dropRight; | ||
| 16558 | lodash.dropRightWhile = dropRightWhile; | ||
| 16559 | lodash.dropWhile = dropWhile; | ||
| 16560 | lodash.fill = fill; | ||
| 16561 | lodash.filter = filter; | ||
| 16562 | lodash.flatMap = flatMap; | ||
| 16563 | lodash.flatMapDeep = flatMapDeep; | ||
| 16564 | lodash.flatMapDepth = flatMapDepth; | ||
| 16565 | lodash.flatten = flatten; | ||
| 16566 | lodash.flattenDeep = flattenDeep; | ||
| 16567 | lodash.flattenDepth = flattenDepth; | ||
| 16568 | lodash.flip = flip; | ||
| 16569 | lodash.flow = flow; | ||
| 16570 | lodash.flowRight = flowRight; | ||
| 16571 | lodash.fromPairs = fromPairs; | ||
| 16572 | lodash.functions = functions; | ||
| 16573 | lodash.functionsIn = functionsIn; | ||
| 16574 | lodash.groupBy = groupBy; | ||
| 16575 | lodash.initial = initial; | ||
| 16576 | lodash.intersection = intersection; | ||
| 16577 | lodash.intersectionBy = intersectionBy; | ||
| 16578 | lodash.intersectionWith = intersectionWith; | ||
| 16579 | lodash.invert = invert; | ||
| 16580 | lodash.invertBy = invertBy; | ||
| 16581 | lodash.invokeMap = invokeMap; | ||
| 16582 | lodash.iteratee = iteratee; | ||
| 16583 | lodash.keyBy = keyBy; | ||
| 16584 | lodash.keys = keys; | ||
| 16585 | lodash.keysIn = keysIn; | ||
| 16586 | lodash.map = map; | ||
| 16587 | lodash.mapKeys = mapKeys; | ||
| 16588 | lodash.mapValues = mapValues; | ||
| 16589 | lodash.matches = matches; | ||
| 16590 | lodash.matchesProperty = matchesProperty; | ||
| 16591 | lodash.memoize = memoize; | ||
| 16592 | lodash.merge = merge; | ||
| 16593 | lodash.mergeWith = mergeWith; | ||
| 16594 | lodash.method = method; | ||
| 16595 | lodash.methodOf = methodOf; | ||
| 16596 | lodash.mixin = mixin; | ||
| 16597 | lodash.negate = negate; | ||
| 16598 | lodash.nthArg = nthArg; | ||
| 16599 | lodash.omit = omit; | ||
| 16600 | lodash.omitBy = omitBy; | ||
| 16601 | lodash.once = once; | ||
| 16602 | lodash.orderBy = orderBy; | ||
| 16603 | lodash.over = over; | ||
| 16604 | lodash.overArgs = overArgs; | ||
| 16605 | lodash.overEvery = overEvery; | ||
| 16606 | lodash.overSome = overSome; | ||
| 16607 | lodash.partial = partial; | ||
| 16608 | lodash.partialRight = partialRight; | ||
| 16609 | lodash.partition = partition; | ||
| 16610 | lodash.pick = pick; | ||
| 16611 | lodash.pickBy = pickBy; | ||
| 16612 | lodash.property = property; | ||
| 16613 | lodash.propertyOf = propertyOf; | ||
| 16614 | lodash.pull = pull; | ||
| 16615 | lodash.pullAll = pullAll; | ||
| 16616 | lodash.pullAllBy = pullAllBy; | ||
| 16617 | lodash.pullAllWith = pullAllWith; | ||
| 16618 | lodash.pullAt = pullAt; | ||
| 16619 | lodash.range = range; | ||
| 16620 | lodash.rangeRight = rangeRight; | ||
| 16621 | lodash.rearg = rearg; | ||
| 16622 | lodash.reject = reject; | ||
| 16623 | lodash.remove = remove; | ||
| 16624 | lodash.rest = rest; | ||
| 16625 | lodash.reverse = reverse; | ||
| 16626 | lodash.sampleSize = sampleSize; | ||
| 16627 | lodash.set = set; | ||
| 16628 | lodash.setWith = setWith; | ||
| 16629 | lodash.shuffle = shuffle; | ||
| 16630 | lodash.slice = slice; | ||
| 16631 | lodash.sortBy = sortBy; | ||
| 16632 | lodash.sortedUniq = sortedUniq; | ||
| 16633 | lodash.sortedUniqBy = sortedUniqBy; | ||
| 16634 | lodash.split = split; | ||
| 16635 | lodash.spread = spread; | ||
| 16636 | lodash.tail = tail; | ||
| 16637 | lodash.take = take; | ||
| 16638 | lodash.takeRight = takeRight; | ||
| 16639 | lodash.takeRightWhile = takeRightWhile; | ||
| 16640 | lodash.takeWhile = takeWhile; | ||
| 16641 | lodash.tap = tap; | ||
| 16642 | lodash.throttle = throttle; | ||
| 16643 | lodash.thru = thru; | ||
| 16644 | lodash.toArray = toArray; | ||
| 16645 | lodash.toPairs = toPairs; | ||
| 16646 | lodash.toPairsIn = toPairsIn; | ||
| 16647 | lodash.toPath = toPath; | ||
| 16648 | lodash.toPlainObject = toPlainObject; | ||
| 16649 | lodash.transform = transform; | ||
| 16650 | lodash.unary = unary; | ||
| 16651 | lodash.union = union; | ||
| 16652 | lodash.unionBy = unionBy; | ||
| 16653 | lodash.unionWith = unionWith; | ||
| 16654 | lodash.uniq = uniq; | ||
| 16655 | lodash.uniqBy = uniqBy; | ||
| 16656 | lodash.uniqWith = uniqWith; | ||
| 16657 | lodash.unset = unset; | ||
| 16658 | lodash.unzip = unzip; | ||
| 16659 | lodash.unzipWith = unzipWith; | ||
| 16660 | lodash.update = update; | ||
| 16661 | lodash.updateWith = updateWith; | ||
| 16662 | lodash.values = values; | ||
| 16663 | lodash.valuesIn = valuesIn; | ||
| 16664 | lodash.without = without; | ||
| 16665 | lodash.words = words; | ||
| 16666 | lodash.wrap = wrap; | ||
| 16667 | lodash.xor = xor; | ||
| 16668 | lodash.xorBy = xorBy; | ||
| 16669 | lodash.xorWith = xorWith; | ||
| 16670 | lodash.zip = zip; | ||
| 16671 | lodash.zipObject = zipObject; | ||
| 16672 | lodash.zipObjectDeep = zipObjectDeep; | ||
| 16673 | lodash.zipWith = zipWith; | ||
| 16674 | |||
| 16675 | // Add aliases. | ||
| 16676 | lodash.entries = toPairs; | ||
| 16677 | lodash.entriesIn = toPairsIn; | ||
| 16678 | lodash.extend = assignIn; | ||
| 16679 | lodash.extendWith = assignInWith; | ||
| 16680 | |||
| 16681 | // Add methods to `lodash.prototype`. | ||
| 16682 | mixin(lodash, lodash); | ||
| 16683 | |||
| 16684 | /*------------------------------------------------------------------------*/ | ||
| 16685 | |||
| 16686 | // Add methods that return unwrapped values in chain sequences. | ||
| 16687 | lodash.add = add; | ||
| 16688 | lodash.attempt = attempt; | ||
| 16689 | lodash.camelCase = camelCase; | ||
| 16690 | lodash.capitalize = capitalize; | ||
| 16691 | lodash.ceil = ceil; | ||
| 16692 | lodash.clamp = clamp; | ||
| 16693 | lodash.clone = clone; | ||
| 16694 | lodash.cloneDeep = cloneDeep; | ||
| 16695 | lodash.cloneDeepWith = cloneDeepWith; | ||
| 16696 | lodash.cloneWith = cloneWith; | ||
| 16697 | lodash.conformsTo = conformsTo; | ||
| 16698 | lodash.deburr = deburr; | ||
| 16699 | lodash.defaultTo = defaultTo; | ||
| 16700 | lodash.divide = divide; | ||
| 16701 | lodash.endsWith = endsWith; | ||
| 16702 | lodash.eq = eq; | ||
| 16703 | lodash.escape = escape; | ||
| 16704 | lodash.escapeRegExp = escapeRegExp; | ||
| 16705 | lodash.every = every; | ||
| 16706 | lodash.find = find; | ||
| 16707 | lodash.findIndex = findIndex; | ||
| 16708 | lodash.findKey = findKey; | ||
| 16709 | lodash.findLast = findLast; | ||
| 16710 | lodash.findLastIndex = findLastIndex; | ||
| 16711 | lodash.findLastKey = findLastKey; | ||
| 16712 | lodash.floor = floor; | ||
| 16713 | lodash.forEach = forEach; | ||
| 16714 | lodash.forEachRight = forEachRight; | ||
| 16715 | lodash.forIn = forIn; | ||
| 16716 | lodash.forInRight = forInRight; | ||
| 16717 | lodash.forOwn = forOwn; | ||
| 16718 | lodash.forOwnRight = forOwnRight; | ||
| 16719 | lodash.get = get; | ||
| 16720 | lodash.gt = gt; | ||
| 16721 | lodash.gte = gte; | ||
| 16722 | lodash.has = has; | ||
| 16723 | lodash.hasIn = hasIn; | ||
| 16724 | lodash.head = head; | ||
| 16725 | lodash.identity = identity; | ||
| 16726 | lodash.includes = includes; | ||
| 16727 | lodash.indexOf = indexOf; | ||
| 16728 | lodash.inRange = inRange; | ||
| 16729 | lodash.invoke = invoke; | ||
| 16730 | lodash.isArguments = isArguments; | ||
| 16731 | lodash.isArray = isArray; | ||
| 16732 | lodash.isArrayBuffer = isArrayBuffer; | ||
| 16733 | lodash.isArrayLike = isArrayLike; | ||
| 16734 | lodash.isArrayLikeObject = isArrayLikeObject; | ||
| 16735 | lodash.isBoolean = isBoolean; | ||
| 16736 | lodash.isBuffer = isBuffer; | ||
| 16737 | lodash.isDate = isDate; | ||
| 16738 | lodash.isElement = isElement; | ||
| 16739 | lodash.isEmpty = isEmpty; | ||
| 16740 | lodash.isEqual = isEqual; | ||
| 16741 | lodash.isEqualWith = isEqualWith; | ||
| 16742 | lodash.isError = isError; | ||
| 16743 | lodash.isFinite = isFinite; | ||
| 16744 | lodash.isFunction = isFunction; | ||
| 16745 | lodash.isInteger = isInteger; | ||
| 16746 | lodash.isLength = isLength; | ||
| 16747 | lodash.isMap = isMap; | ||
| 16748 | lodash.isMatch = isMatch; | ||
| 16749 | lodash.isMatchWith = isMatchWith; | ||
| 16750 | lodash.isNaN = isNaN; | ||
| 16751 | lodash.isNative = isNative; | ||
| 16752 | lodash.isNil = isNil; | ||
| 16753 | lodash.isNull = isNull; | ||
| 16754 | lodash.isNumber = isNumber; | ||
| 16755 | lodash.isObject = isObject; | ||
| 16756 | lodash.isObjectLike = isObjectLike; | ||
| 16757 | lodash.isPlainObject = isPlainObject; | ||
| 16758 | lodash.isRegExp = isRegExp; | ||
| 16759 | lodash.isSafeInteger = isSafeInteger; | ||
| 16760 | lodash.isSet = isSet; | ||
| 16761 | lodash.isString = isString; | ||
| 16762 | lodash.isSymbol = isSymbol; | ||
| 16763 | lodash.isTypedArray = isTypedArray; | ||
| 16764 | lodash.isUndefined = isUndefined; | ||
| 16765 | lodash.isWeakMap = isWeakMap; | ||
| 16766 | lodash.isWeakSet = isWeakSet; | ||
| 16767 | lodash.join = join; | ||
| 16768 | lodash.kebabCase = kebabCase; | ||
| 16769 | lodash.last = last; | ||
| 16770 | lodash.lastIndexOf = lastIndexOf; | ||
| 16771 | lodash.lowerCase = lowerCase; | ||
| 16772 | lodash.lowerFirst = lowerFirst; | ||
| 16773 | lodash.lt = lt; | ||
| 16774 | lodash.lte = lte; | ||
| 16775 | lodash.max = max; | ||
| 16776 | lodash.maxBy = maxBy; | ||
| 16777 | lodash.mean = mean; | ||
| 16778 | lodash.meanBy = meanBy; | ||
| 16779 | lodash.min = min; | ||
| 16780 | lodash.minBy = minBy; | ||
| 16781 | lodash.stubArray = stubArray; | ||
| 16782 | lodash.stubFalse = stubFalse; | ||
| 16783 | lodash.stubObject = stubObject; | ||
| 16784 | lodash.stubString = stubString; | ||
| 16785 | lodash.stubTrue = stubTrue; | ||
| 16786 | lodash.multiply = multiply; | ||
| 16787 | lodash.nth = nth; | ||
| 16788 | lodash.noConflict = noConflict; | ||
| 16789 | lodash.noop = noop; | ||
| 16790 | lodash.now = now; | ||
| 16791 | lodash.pad = pad; | ||
| 16792 | lodash.padEnd = padEnd; | ||
| 16793 | lodash.padStart = padStart; | ||
| 16794 | lodash.parseInt = parseInt; | ||
| 16795 | lodash.random = random; | ||
| 16796 | lodash.reduce = reduce; | ||
| 16797 | lodash.reduceRight = reduceRight; | ||
| 16798 | lodash.repeat = repeat; | ||
| 16799 | lodash.replace = replace; | ||
| 16800 | lodash.result = result; | ||
| 16801 | lodash.round = round; | ||
| 16802 | lodash.runInContext = runInContext; | ||
| 16803 | lodash.sample = sample; | ||
| 16804 | lodash.size = size; | ||
| 16805 | lodash.snakeCase = snakeCase; | ||
| 16806 | lodash.some = some; | ||
| 16807 | lodash.sortedIndex = sortedIndex; | ||
| 16808 | lodash.sortedIndexBy = sortedIndexBy; | ||
| 16809 | lodash.sortedIndexOf = sortedIndexOf; | ||
| 16810 | lodash.sortedLastIndex = sortedLastIndex; | ||
| 16811 | lodash.sortedLastIndexBy = sortedLastIndexBy; | ||
| 16812 | lodash.sortedLastIndexOf = sortedLastIndexOf; | ||
| 16813 | lodash.startCase = startCase; | ||
| 16814 | lodash.startsWith = startsWith; | ||
| 16815 | lodash.subtract = subtract; | ||
| 16816 | lodash.sum = sum; | ||
| 16817 | lodash.sumBy = sumBy; | ||
| 16818 | lodash.template = template; | ||
| 16819 | lodash.times = times; | ||
| 16820 | lodash.toFinite = toFinite; | ||
| 16821 | lodash.toInteger = toInteger; | ||
| 16822 | lodash.toLength = toLength; | ||
| 16823 | lodash.toLower = toLower; | ||
| 16824 | lodash.toNumber = toNumber; | ||
| 16825 | lodash.toSafeInteger = toSafeInteger; | ||
| 16826 | lodash.toString = toString; | ||
| 16827 | lodash.toUpper = toUpper; | ||
| 16828 | lodash.trim = trim; | ||
| 16829 | lodash.trimEnd = trimEnd; | ||
| 16830 | lodash.trimStart = trimStart; | ||
| 16831 | lodash.truncate = truncate; | ||
| 16832 | lodash.unescape = unescape; | ||
| 16833 | lodash.uniqueId = uniqueId; | ||
| 16834 | lodash.upperCase = upperCase; | ||
| 16835 | lodash.upperFirst = upperFirst; | ||
| 16836 | |||
| 16837 | // Add aliases. | ||
| 16838 | lodash.each = forEach; | ||
| 16839 | lodash.eachRight = forEachRight; | ||
| 16840 | lodash.first = head; | ||
| 16841 | |||
| 16842 |     mixin(lodash, (function() { | ||
| 16843 |       var source = {}; | ||
| 16844 |       baseForOwn(lodash, function(func, methodName) { | ||
| 16845 |         if (!hasOwnProperty.call(lodash.prototype, methodName)) { | ||
| 16846 | source[methodName] = func; | ||
| 16847 | } | ||
| 16848 | }); | ||
| 16849 | return source; | ||
| 16850 |     }()), { 'chain': false }); | ||
| 16851 | |||
| 16852 | /*------------------------------------------------------------------------*/ | ||
| 16853 | |||
| 16854 | /** | ||
| 16855 | * The semantic version number. | ||
| 16856 | * | ||
| 16857 | * @static | ||
| 16858 | * @memberOf _ | ||
| 16859 |      * @type {string} | ||
| 16860 | */ | ||
| 16861 | lodash.VERSION = VERSION; | ||
| 16862 | |||
| 16863 | // Assign default placeholders. | ||
| 16864 |     arrayEach(['bind', 'bindKey', 'curry', 'curryRight', 'partial', 'partialRight'], function(methodName) { | ||
| 16865 | lodash[methodName].placeholder = lodash; | ||
| 16866 | }); | ||
| 16867 | |||
| 16868 | // Add `LazyWrapper` methods for `_.drop` and `_.take` variants. | ||
| 16869 |     arrayEach(['drop', 'take'], function(methodName, index) { | ||
| 16870 |       LazyWrapper.prototype[methodName] = function(n) { | ||
| 16871 | n = n === undefined ? 1 : nativeMax(toInteger(n), 0); | ||
| 16872 | |||
| 16873 | var result = (this.__filtered__ && !index) | ||
| 16874 | ? new LazyWrapper(this) | ||
| 16875 | : this.clone(); | ||
| 16876 | |||
| 16877 |         if (result.__filtered__) { | ||
| 16878 | result.__takeCount__ = nativeMin(n, result.__takeCount__); | ||
| 16879 |         } else { | ||
| 16880 |           result.__views__.push({ | ||
| 16881 | 'size': nativeMin(n, MAX_ARRAY_LENGTH), | ||
| 16882 | 'type': methodName + (result.__dir__ < 0 ? 'Right' : '') | ||
| 16883 | }); | ||
| 16884 | } | ||
| 16885 | return result; | ||
| 16886 | }; | ||
| 16887 | |||
| 16888 |       LazyWrapper.prototype[methodName + 'Right'] = function(n) { | ||
| 16889 | return this.reverse()[methodName](n).reverse(); | ||
| 16890 | }; | ||
| 16891 | }); | ||
| 16892 | |||
| 16893 | // Add `LazyWrapper` methods that accept an `iteratee` value. | ||
| 16894 |     arrayEach(['filter', 'map', 'takeWhile'], function(methodName, index) { | ||
| 16895 | var type = index + 1, | ||
| 16896 | isFilter = type == LAZY_FILTER_FLAG || type == LAZY_WHILE_FLAG; | ||
| 16897 | |||
| 16898 |       LazyWrapper.prototype[methodName] = function(iteratee) { | ||
| 16899 | var result = this.clone(); | ||
| 16900 |         result.__iteratees__.push({ | ||
| 16901 | 'iteratee': getIteratee(iteratee, 3), | ||
| 16902 | 'type': type | ||
| 16903 | }); | ||
| 16904 | result.__filtered__ = result.__filtered__ || isFilter; | ||
| 16905 | return result; | ||
| 16906 | }; | ||
| 16907 | }); | ||
| 16908 | |||
| 16909 | // Add `LazyWrapper` methods for `_.head` and `_.last`. | ||
| 16910 |     arrayEach(['head', 'last'], function(methodName, index) { | ||
| 16911 | var takeName = 'take' + (index ? 'Right' : ''); | ||
| 16912 | |||
| 16913 |       LazyWrapper.prototype[methodName] = function() { | ||
| 16914 | return this[takeName](1).value()[0]; | ||
| 16915 | }; | ||
| 16916 | }); | ||
| 16917 | |||
| 16918 | // Add `LazyWrapper` methods for `_.initial` and `_.tail`. | ||
| 16919 |     arrayEach(['initial', 'tail'], function(methodName, index) { | ||
| 16920 | var dropName = 'drop' + (index ? '' : 'Right'); | ||
| 16921 | |||
| 16922 |       LazyWrapper.prototype[methodName] = function() { | ||
| 16923 | return this.__filtered__ ? new LazyWrapper(this) : this[dropName](1); | ||
| 16924 | }; | ||
| 16925 | }); | ||
| 16926 | |||
| 16927 |     LazyWrapper.prototype.compact = function() { | ||
| 16928 | return this.filter(identity); | ||
| 16929 | }; | ||
| 16930 | |||
| 16931 |     LazyWrapper.prototype.find = function(predicate) { | ||
| 16932 | return this.filter(predicate).head(); | ||
| 16933 | }; | ||
| 16934 | |||
| 16935 |     LazyWrapper.prototype.findLast = function(predicate) { | ||
| 16936 | return this.reverse().find(predicate); | ||
| 16937 | }; | ||
| 16938 | |||
| 16939 |     LazyWrapper.prototype.invokeMap = baseRest(function(path, args) { | ||
| 16940 |       if (typeof path == 'function') { | ||
| 16941 | return new LazyWrapper(this); | ||
| 16942 | } | ||
| 16943 |       return this.map(function(value) { | ||
| 16944 | return baseInvoke(value, path, args); | ||
| 16945 | }); | ||
| 16946 | }); | ||
| 16947 | |||
| 16948 |     LazyWrapper.prototype.reject = function(predicate) { | ||
| 16949 | return this.filter(negate(getIteratee(predicate))); | ||
| 16950 | }; | ||
| 16951 | |||
| 16952 |     LazyWrapper.prototype.slice = function(start, end) { | ||
| 16953 | start = toInteger(start); | ||
| 16954 | |||
| 16955 | var result = this; | ||
| 16956 |       if (result.__filtered__ && (start > 0 || end < 0)) { | ||
| 16957 | return new LazyWrapper(result); | ||
| 16958 | } | ||
| 16959 |       if (start < 0) { | ||
| 16960 | result = result.takeRight(-start); | ||
| 16961 |       } else if (start) { | ||
| 16962 | result = result.drop(start); | ||
| 16963 | } | ||
| 16964 |       if (end !== undefined) { | ||
| 16965 | end = toInteger(end); | ||
| 16966 | result = end < 0 ? result.dropRight(-end) : result.take(end - start); | ||
| 16967 | } | ||
| 16968 | return result; | ||
| 16969 | }; | ||
| 16970 | |||
| 16971 |     LazyWrapper.prototype.takeRightWhile = function(predicate) { | ||
| 16972 | return this.reverse().takeWhile(predicate).reverse(); | ||
| 16973 | }; | ||
| 16974 | |||
| 16975 |     LazyWrapper.prototype.toArray = function() { | ||
| 16976 | return this.take(MAX_ARRAY_LENGTH); | ||
| 16977 | }; | ||
| 16978 | |||
| 16979 | // Add `LazyWrapper` methods to `lodash.prototype`. | ||
| 16980 |     baseForOwn(LazyWrapper.prototype, function(func, methodName) { | ||
| 16981 | var checkIteratee = /^(?:filter|find|map|reject)|While$/.test(methodName), | ||
| 16982 | isTaker = /^(?:head|last)$/.test(methodName), | ||
| 16983 |           lodashFunc = lodash[isTaker ? ('take' + (methodName == 'last' ? 'Right' : '')) : methodName], | ||
| 16984 | retUnwrapped = isTaker || /^find/.test(methodName); | ||
| 16985 | |||
| 16986 |       if (!lodashFunc) { | ||
| 16987 | return; | ||
| 16988 | } | ||
| 16989 |       lodash.prototype[methodName] = function() { | ||
| 16990 | var value = this.__wrapped__, | ||
| 16991 | args = isTaker ? [1] : arguments, | ||
| 16992 | isLazy = value instanceof LazyWrapper, | ||
| 16993 | iteratee = args[0], | ||
| 16994 | useLazy = isLazy || isArray(value); | ||
| 16995 | |||
| 16996 |         var interceptor = function(value) { | ||
| 16997 | var result = lodashFunc.apply(lodash, arrayPush([value], args)); | ||
| 16998 | return (isTaker && chainAll) ? result[0] : result; | ||
| 16999 | }; | ||
| 17000 | |||
| 17001 |         if (useLazy && checkIteratee && typeof iteratee == 'function' && iteratee.length != 1) { | ||
| 17002 | // Avoid lazy use if the iteratee has a "length" value other than `1`. | ||
| 17003 | isLazy = useLazy = false; | ||
| 17004 | } | ||
| 17005 | var chainAll = this.__chain__, | ||
| 17006 | isHybrid = !!this.__actions__.length, | ||
| 17007 | isUnwrapped = retUnwrapped && !chainAll, | ||
| 17008 | onlyLazy = isLazy && !isHybrid; | ||
| 17009 | |||
| 17010 |         if (!retUnwrapped && useLazy) { | ||
| 17011 | value = onlyLazy ? value : new LazyWrapper(this); | ||
| 17012 | var result = func.apply(value, args); | ||
| 17013 |           result.__actions__.push({ 'func': thru, 'args': [interceptor], 'thisArg': undefined }); | ||
| 17014 | return new LodashWrapper(result, chainAll); | ||
| 17015 | } | ||
| 17016 |         if (isUnwrapped && onlyLazy) { | ||
| 17017 | return func.apply(this, args); | ||
| 17018 | } | ||
| 17019 | result = this.thru(interceptor); | ||
| 17020 | return isUnwrapped ? (isTaker ? result.value()[0] : result.value()) : result; | ||
| 17021 | }; | ||
| 17022 | }); | ||
| 17023 | |||
| 17024 | // Add `Array` methods to `lodash.prototype`. | ||
| 17025 |     arrayEach(['pop', 'push', 'shift', 'sort', 'splice', 'unshift'], function(methodName) { | ||
| 17026 | var func = arrayProto[methodName], | ||
| 17027 | chainName = /^(?:push|sort|unshift)$/.test(methodName) ? 'tap' : 'thru', | ||
| 17028 | retUnwrapped = /^(?:pop|shift)$/.test(methodName); | ||
| 17029 | |||
| 17030 |       lodash.prototype[methodName] = function() { | ||
| 17031 | var args = arguments; | ||
| 17032 |         if (retUnwrapped && !this.__chain__) { | ||
| 17033 | var value = this.value(); | ||
| 17034 | return func.apply(isArray(value) ? value : [], args); | ||
| 17035 | } | ||
| 17036 |         return this[chainName](function(value) { | ||
| 17037 | return func.apply(isArray(value) ? value : [], args); | ||
| 17038 | }); | ||
| 17039 | }; | ||
| 17040 | }); | ||
| 17041 | |||
| 17042 | // Map minified method names to their real names. | ||
| 17043 |     baseForOwn(LazyWrapper.prototype, function(func, methodName) { | ||
| 17044 | var lodashFunc = lodash[methodName]; | ||
| 17045 |       if (lodashFunc) { | ||
| 17046 | var key = lodashFunc.name + ''; | ||
| 17047 |         if (!hasOwnProperty.call(realNames, key)) { | ||
| 17048 | realNames[key] = []; | ||
| 17049 | } | ||
| 17050 |         realNames[key].push({ 'name': methodName, 'func': lodashFunc }); | ||
| 17051 | } | ||
| 17052 | }); | ||
| 17053 | |||
| 17054 |     realNames[createHybrid(undefined, WRAP_BIND_KEY_FLAG).name] = [{ | ||
| 17055 | 'name': 'wrapper', | ||
| 17056 | 'func': undefined | ||
| 17057 | }]; | ||
| 17058 | |||
| 17059 | // Add methods to `LazyWrapper`. | ||
| 17060 | LazyWrapper.prototype.clone = lazyClone; | ||
| 17061 | LazyWrapper.prototype.reverse = lazyReverse; | ||
| 17062 | LazyWrapper.prototype.value = lazyValue; | ||
| 17063 | |||
| 17064 | // Add chain sequence methods to the `lodash` wrapper. | ||
| 17065 | lodash.prototype.at = wrapperAt; | ||
| 17066 | lodash.prototype.chain = wrapperChain; | ||
| 17067 | lodash.prototype.commit = wrapperCommit; | ||
| 17068 | lodash.prototype.next = wrapperNext; | ||
| 17069 | lodash.prototype.plant = wrapperPlant; | ||
| 17070 | lodash.prototype.reverse = wrapperReverse; | ||
| 17071 | lodash.prototype.toJSON = lodash.prototype.valueOf = lodash.prototype.value = wrapperValue; | ||
| 17072 | |||
| 17073 | // Add lazy aliases. | ||
| 17074 | lodash.prototype.first = lodash.prototype.head; | ||
| 17075 | |||
| 17076 |     if (symIterator) { | ||
| 17077 | lodash.prototype[symIterator] = wrapperToIterator; | ||
| 17078 | } | ||
| 17079 | return lodash; | ||
| 17080 | }); | ||
| 17081 | |||
| 17113 |