ES6 变量的解构赋值
ES6 允许按照一定模式,从数组和对象中提取值,对变量进行赋值,这被称为解构
1、数组的解构赋值
<script type="text/javascript"> let arr1=[11,22,33]; let [a,b,c]=arr1;//直接对a、b、c赋值 console.log(a,b,c);//11 22 33 let [,,d]=arr1; console.log(d); </script>
2、对象的解构赋值
<script type="text/javascript"> let obj = {username:'rdb',password:'123456'}; let {username,password} =obj; console.log(username,password);//变量名必须和属性名相同 </script>