通过ES6扩展运算符实现数组和对象的深拷贝

通过es6中扩展运算符可以快速高效的实现数组和对象的深拷贝。

一、数组的深拷贝

	let arr = [1,2,3,4,5]
	let [ ...arr2 ] = arr
	arr[2] = 3
	console.log(arr)
	console.log(arr2)

二、对象的深拷贝

	let obj = {
	    name: ['hui',22,{name:'wanb'}],
	    sex: 'man',
	    age: '18'
	}
   let {
         ...obj2
     } = obj
     obj.old = '16'
     console.log(obj)
     console.log(obj2)

三、对象的取值

	let obj = {
	    name: ['hui',22,{name:'wanb'}],
	    sex: 'man',
	    age: '18'
	}
	let {name,...res} = obj
    console.log(name) //['hui',22,{name:'wanb'}]
    console.log(res)  //{sex:'man' , age :'18'}

四、黑科技深拷贝

    var copy = JSON.parse(JSON.stringify(object))