55 lines
1.1 KiB
JavaScript
55 lines
1.1 KiB
JavaScript
|
'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;
|