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