index.js
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'use strict';
/**
* Module dependenices
*/
var utils = require('./utils');
/**
* Recursively clone native types.
*/
function cloneDeep(val, instanceClone) {
switch (utils.typeOf(val)) {
case 'object':
return cloneObjectDeep(val, instanceClone);
case 'array':
return cloneArrayDeep(val, instanceClone);
default:
return utils.clone(val);
}
}
function cloneObjectDeep(obj, instanceClone) {
if (utils.isObject(obj)) {
var res = {};
utils.forOwn(obj, function(obj, key) {
this[key] = cloneDeep(obj, instanceClone);
}, res);
return res;
} else if (instanceClone) {
return instanceClone(obj);
} else {
return obj;
}
}
function cloneArrayDeep(arr, instanceClone) {
var len = arr.length, res = [];
var i = -1;
while (++i < len) {
res[i] = cloneDeep(arr[i], instanceClone);
}
return res;
}
/**
* Expose `cloneDeep`
*/
module.exports = cloneDeep;