1.注意事项
- A.左右两边结构必须一样
- B.右边必须是个东西
- C.声明和赋值不能分开(必须在一句话里完成)
2.代码如下
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>解构赋值</title>
<script>
let [a0, b0, c] = [12, 5, 8];
let {d,e,f} = {d: 12,e: 21,f: 23};
console.log(a0, b0, c);
// 结果12,5,8
console.log(d, e, f);
// 结果12,21,23
let [{a,b},[n1, n2, n3], num1, str1] = [{a: 1,b: 2},[12, 5, 8], 8, 'cxzcv'];
let [json,arr, num2, str2] = [{a: 1, b: 2},[12, 5, 8], 7, 'cx']
console.log(a, b, n1, n2, n3, num1, str1);
console.log(json, arr, num2, str2);
</script>
</head>
<body>
</body>
</html>