7820380e
 “wangming”
1
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
|
'use strict'
module.exports = clone
var getPrototypeOf = Object.getPrototypeOf || function (obj) {
return obj.__proto__
}
function clone (obj) {
if (obj === null || typeof obj !== 'object')
return obj
if (obj instanceof Object)
var copy = { __proto__: getPrototypeOf(obj) }
else
var copy = Object.create(null)
Object.getOwnPropertyNames(obj).forEach(function (key) {
Object.defineProperty(copy, key, Object.getOwnPropertyDescriptor(obj, key))
})
return copy
}
|
