<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Hello World</title>
<script src="../js/vue.js"></script>
</head>
<body>
<div id="app">
<input type="text" v-model="searchName" /><br />
<ul>
<li v-for="(item, index) in filteredPersons" :key='index'>
{{item.name}}---{{item.age}}
</li>
<button type="button" @click="orderType=1">按age升序</button>
<button type="button" @click="orderType=2">按age降序</button>
<button type="button" @click="orderType=0">原始顺序</button>
</ul>
</div>
<script>
const vm = new Vue({
el: '#app',
data: {
searchName: '',
persons: [
{name:'tom', age:19},
{name:'jerry', age:15},
{name:'spike', age:20}
],
orderType: 0//0 不排序，1升序，2降序
},
computed:{
filteredPersons(){
const {searchName, persons, orderType} = this
const newPersons = persons.filter(p=>p.name.indexOf(searchName)!==-1)
return orderType===0? newPersons:
orderType===1? newPersons.sort((a, b)=>a.age-b.age):
newPersons.sort((a, b)=>b.age-a.age)
}
}
})
</script>
</body>
</html>
