forked from zhurui/management
55 lines
1.1 KiB
JavaScript
55 lines
1.1 KiB
JavaScript
'use strict';
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/**
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* Module dependenices
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*/
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var isObject = require('is-plain-object');
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var clone = require('shallow-clone');
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var typeOf = require('kind-of');
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var forOwn = require('for-own');
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/**
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* Recursively clone native types.
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*/
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function cloneDeep(val, instanceClone) {
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switch (typeOf(val)) {
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case 'object':
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return cloneObjectDeep(val, instanceClone);
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case 'array':
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return cloneArrayDeep(val, instanceClone);
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default: {
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return clone(val);
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}
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}
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}
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function cloneObjectDeep(obj, instanceClone) {
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if (isObject(obj) || (instanceClone === true && typeOf(obj) === 'object')) {
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var res = {};
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forOwn(obj, function(val, key) {
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this[key] = cloneDeep(val, instanceClone);
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}, res);
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return res;
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}
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if (typeof instanceClone === 'function') {
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return instanceClone(obj);
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}
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return obj;
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}
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function cloneArrayDeep(arr, instanceClone) {
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var res = [];
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for (var i = 0; i < arr.length; i++) {
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res[i] = cloneDeep(arr[i], instanceClone);
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}
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return res;
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}
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/**
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* Expose `cloneDeep`
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*/
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module.exports = cloneDeep;
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