javascript 克隆对象/数组的方法 clone()

 

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javascript 克隆对象/数组的方法 clone()

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demo:

code:

 1         var Obj;
 2         let clone = (Obj) => {
 3             var buf;
 4             if (Obj instanceof Array) {
 5                 buf = [];
 6                 var i = Obj.length;
 7                 while (i--) {
 8                     buf[i] = clone(Obj[i]);
 9                     console.log(`Array buf[k] = ${buf[i]}`);
10                     console.log(`Array buf[k] = ${buf[i]}`);
11                 }
12                 console.log(`Array = ${buf}`);
13                 return buf;
14             }else if(Obj instanceof Object){
15                 buf = {};
16                 for (var k in Obj) {
17                     buf[k] = clone(Obj[k]);
18                     console.log(`Object buf[k] = ${buf[k]}`);
19                 }
20                 console.log(`Object = ${buf}`);
21                 return buf;
22             }else {
23                 console.log(`Other = ${Obj}`);
24                 return Obj;
25             }
26         }
27         let obj = {name: "xgqfrms", age: 23}
28         // let arr = [{name: "xgqfrms"},{age: 23}];
29         let arr = ["name", "xgqfrms", "age", 23];
30         let str = `xgqfrms`;
31
32         let o = clone(obj);
33         console.log(`\n\nTest obj = ${o}`);
34
35         let a = clone(arr);
36         console.log(`\n\nTest arr = ${a}`);
37
38         let s = clone(str);
39         console.log(`\n\nTest str = ${s}`);

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