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import App from "app"; |
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App.helpers.object = {}; |
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/** |
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* Get element from obj by string path |
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* Example: |
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* Given the object let a = {a: {b: 1}} |
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* When you do getFlattened("a.b", a) |
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* Then you get the number 1. |
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* @param {string} path specify the key of the object you want |
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* @param {Object} obj reference object |
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* @param {any} defaultValue value to return if key was not found. Default is null |
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* @return {any} |
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*/ |
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App.helpers.object.getFlattened = (path, obj, defaultValue = null) => { |
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if (typeof path !== "string") { |
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throw "path must be string"; |
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} |
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let i; |
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let response = obj; |
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const size = path.split(".").length; |
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for (i = 0; i < size; i += 1) { |
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if (response instanceof Object === false) { |
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return defaultValue; |
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} |
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if (response.hasOwnProperty(path[i])) { |
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response = response[path[i]]; |
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} else { |
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return defaultValue; |
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} |
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} |
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return response; |
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}; |
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/** |
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* @see getFlattened |
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* Similar to getFlattened, but it set the value instead of return it. |
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* Example: |
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* Given the object let b = {a: {b: 1}} |
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* When you do setFlattened("a.b", 2) |
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* Then you get {a: {b: 2}} |
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* @param {String} path |
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* @param {*} newValue |
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* @param {Object} obj |
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* @returns {*} |
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*/ |
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App.helpers.object.setFlattened = (path, newValue, obj) => { |
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"use strict"; |
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const laps = path.split(".").length; |
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let i; |
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let temp = obj; |
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for (i = 0; i < laps; i += 1) { |
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temp = temp[path[i]]; |
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} |
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temp[path[laps]] = newValue; |
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return obj; |
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}; |
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/** |
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* Get first key of an object or null if it doesn't have keys |
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* @param {Object} obj |
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* @returns {*} |
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*/ |
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App.helpers.object.firstKey = (obj) => { |
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"use strict"; |
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if (obj instanceof Object === false) { |
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throw "obj must be an Object"; |
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} |
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return Object.keys(obj)[0] || null; |
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}; |
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beeblebrox3 /
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