箭头函数
2018-12-21 本文已影响0人
asmuzi
普通函数与箭头函数
<!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>
<script>
// 普通函数
function (a, b, c) {
//代码
}
fn(a, b, c)
// 箭头函数
(a, b, c)=> {
//代码
}
</script>
</head>
<body>
</body>
</html>
箭头函数2
<!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>
<script>
function show(fn) {
fn(12,5)
}
show((a, b) => {
console.log(a * b);
})
</script>
</head>
<body>
</body>
</html>
箭头函数3
<!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>
<script>
let show = a => {
console.log(a);
}
show(12);
</script>
</head>
<body>
</body>
</html>
箭头函数4
<!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>
<script>
let sum = (a, b) => a + b;
console.log(sum(12, 5));
</script>
</head>
<body>
</body>
</html>
箭头函数5排序
<!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>
<script>
let arr = [12, 5, 88, 27, 16, 35, 8];
arr.sort((a, b) => a - b);
console.log(arr);
</script>
</head>
<body>
</body>
</html>
