Spaces:
Running
Running
File size: 1,023 Bytes
1df763a |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 |
'use strict';
/**
* Module dependenices
*/
const clone = require('shallow-clone');
const typeOf = require('kind-of');
const isPlainObject = require('is-plain-object');
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(val, instanceClone) {
if (typeof instanceClone === 'function') {
return instanceClone(val);
}
if (instanceClone || isPlainObject(val)) {
const res = new val.constructor();
for (let key in val) {
res[key] = cloneDeep(val[key], instanceClone);
}
return res;
}
return val;
}
function cloneArrayDeep(val, instanceClone) {
const res = new val.constructor(val.length);
for (let i = 0; i < val.length; i++) {
res[i] = cloneDeep(val[i], instanceClone);
}
return res;
}
/**
* Expose `cloneDeep`
*/
module.exports = cloneDeep;
|