02_08.for_of
2017-11-13 本文已影响0人
Robyn_Luo
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
</head>
<body>
<li>111</li>
<li>222</li>
<li>333</li>
<li>444</li>
<script>
// for of语句是es6新增的循环语句,
// 作用是用来遍历数组以及内置的伪数组结构中的值, 另外Set Map也支持
let arr = [ 11, 22, 33 ];
for(let v of arr) {
console.log(v);
}
let lis = document.querySelectorAll('li');
for(let li of lis) {
console.log(li);
}
let set = new Set([2, 4, 5, 2]);
for(let v of set) {
console.log(v);
}
</script>
