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module.exports = { |
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isEmpty: async function(value) { |
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return (Array.isArray(value) && value.length === 0) || |
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(Object.prototype.isPrototypeOf(value) && Object.keys(value).length === 0) |
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}, |
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/** |
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* 二进制转十进制 |
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*/ |
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bindec: async function(binNum) { |
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let result = 0 |
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let total = binNum.length |
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for (let index = 1; index <= total; index++) { |
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let tmp = binNum.slice(total - index, total - index + 1) |
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let tmpAdd = parseInt(tmp) * parseInt(Math.pow(2, index - 1)) |
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result += tmpAdd |
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} |
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return result |
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}, |
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/** |
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* |
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*/ |
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today: async function(symbol = '') { |
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let date = new Date() |
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return date.getFullYear() + symbol + (date.getMonth() < 10 ? '0' + (date.getMonth() + 1) : (date.getMonth() + 1)) + symbol + (date.getDate() < 10 ? '0' + date.getDate() : date.getDate()) |
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}, |
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versionCompare: function(v1, v2) { |
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let version1pre = parseFloat(v1) |
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let version2pre = parseFloat(v2) |
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let version1next = v1.replace(version1pre + ".", "") |
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let version2next = v2.replace(version2pre + ".", "") |
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if (version1pre > version2pre) { |
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return true; |
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} else if (version1pre < version2pre) { |
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return false; |
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} else { |
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if (version1next >= version2next) { |
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return true; |
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} else { |
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return false; |
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} |
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} |
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}, |
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checkObject: function(object, fields, tips) { |
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let result = {} |
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if (!UnderScore.isObject(object)) { |
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console.log('not object') |
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object = JSON.parse(object) |
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} |
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fields.forEach(element => { |
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if (UnderScore.has(object, element) !== true) { |
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throw new ApiError('validate.error', tips + ' 对象缺 ' + element + ' 属性') |
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} |
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result[element] = object[element] |
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}) |
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return result |
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}, |
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} |