列表排序—sort（改变原数组）
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<title>列表排序</title>
<script type="text/javascript" src="../js/vue.js"></script>
</head>
<body>
<div id="root">
<h2>人员列表</h2>
<input v-model="keyWord" type="text" placeholder="请输入姓名" />
<button @click="sortType = 1">年龄升序↑</button>
<button @click="sortType = 2">年龄降序↓</button>
<button @click="sortType = 0">原顺序</button>
<ul>
<li v-for="(p,index) in fmtPersons">
{{p.name}}---{{p.sex}}---{{p.age}}岁
</li>
</ul>
</div>
<script>
new Vue({
el: "#root",
data: {
keyWord: "",
sortType: 0,
persons: [
{ id: "001", name: "马冬梅", age: 20, sex: "男" },
{ id: "002", name: "周冬雨", age: 29, sex: "女" },
{ id: "003", name: "周杰伦", age: 32, sex: "男" },
{ id: "004", name: "温兆伦", age: 50, sex: "女" },
],
},
computed: {
fmtPersons() {
const { persons, keyWord, sortType } = this;
let arr = persons.filter((p) => p.name.indexOf(keyWord) !== -1);
if (sortType) {
arr.sort((a, b) => {
if (sortType === 1) return a.age - b.age;
else return b.age - a.age;
});
}
return arr;
},
},
methods: {
demo() {
console.log(1);
},
},
});
</script>
</body>
</html>
