vue里数组排序示例
vue的默认排序方式
<!DOCTYPE html>
<html >
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document</title>
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
</head>
<body>
<div >
<template v-for="user in userInfo">
<li>姓名:{{user}}</li>
</template>
</div>
<script>
var v=new Vue({
el:"#app",
data:{
userInfo:['zhangsan','aisi','wangwu']
}
});
v.userInfo.sort();
</script>
</body>
</html>
改写排序方式的示例
<!DOCTYPE html>
<html >
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document</title>
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
</head>
<body>
<div >
<template v-for="user in userInfoSorted">
<li>姓名:{{user.name}}</li>
</template>
</div>
<script>
var v = new Vue({
el: "#app",
data: {
userInfo: [
{ name: "zhangsan" },
{ name: "aisi" },
{ name: "wangwu" },
],
},
computed: {
userInfoSorted: function () {
// a,b参数代表的是user 按照 长度降序排序
return this.userInfo.sort(function (a, b) {
return -(a.name.length - b.name.length);
});
},
},
});
</script>
</body>
</html>