深拷贝

 1 let obj = {
 2         name: ‘james‘,
 3         age: 23,
 4         height: 198,
 5         color: [‘red‘, ‘green‘, ‘yellow‘, ‘deeppink‘],
 6         firends: {
 7           name: ‘xiaoming‘,
 8           age: 23 
 9         },
10         hope: function () {
11           console.log(‘movies‘); 
12         }
13       }
14 
15       
16       let obj1 = {}
17       function deepClone(target, origin) {
18         let obj1 = target || [],
19             toStr = Object.prototype.toString,
20             arrStr = "[object Array]";
21             for (var key in origin) {
22               if(origin.hasOwnProperty(key)) {
23                 if(typeof(obj[key]) === ‘object‘) {
24                   if(toStr.call(origin[key]) === arrStr) {
25                     target[key] = []
26                   }else {
27                     target[key] = {}
28                   }
29                   deepClone(target[key], origin[key])
30                 }else {
31                   target[key] = origin[key]
32                 }
33               }
34             }
35             return target
36       }
37       deepClone(obj1, obj)