<!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>
<script>
// const arr = [1,2,3,4]
/* const a = 1
const b = 2
const c = 3
const d = 4 */
// const [a, c, b, d] = [1, 2, 3, 4]
// const age = 20
function fn(callback) {
callback({a: 10, b: 20})
}
fn(function ({a, b}) {
console.log(a, b)
})
// const {a, b} = {a: 10, b: 20}
function fn (context) {}
fn ({commit})
// content = store = {commit: function () {}, state: {}}
const {commit, state} = context
const {age: age1, name} = {name: '张三', age: 18, sex: '男'}
</script>
</body>
</html>
