成都前端培训课程之js里的深度克隆ES6

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　　成都前端培训课程之js里的深度克隆ES6

　　数组克隆

　　let arr = [1,2,3,4,5];

　　let arr1 = [...a];

　　arr1 = ["a","b","c"];

　　arr;//[1,2,3,4,5]

　　arr1;//["a","b","c"]

　　对象克隆

　　let obj = {name:"tony",age:18};

　　let obj1 = {...obj};

　　obj1.age = 16;

　　obj;//{name:"tony",age:18}

　　obj1;//{name:"tony",age:16}

　　附ES5

　　仅供参考

　　数组的克隆

　　function deepClone (event) {

　　var arr = [],

　　i = 0,

　　len = event.length;

　　for (; i < len; i++) {

　　if (event[i] instanceof Array) {

　　arr[i] = deepcopy(event[i]);

　　} else arr[i] = event[i];

　　}

　　return arr;

　　}

　　对象的克隆

　　function deepClone(obj){

　　var newObj= obj instanceof Array?[]:{};

　　for(var i in obj){

　　newObj[i]=typeof obj[i]=='object'?

　　deepClone(obj[i])bj[i];

　　}

　　return newObj;

　　}

　　若有不妥之处请指正