Vue学习笔记22--列表排序

<!DOCTYPE html>
<html lang="en">
 
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>列表排序</title>
  <script type="text/javascript" src="../Js/vue.js"></script>
</head>
 
<body>
  <div id="root">
    <h2>人员列表信息(遍历数组)：</h2>
    <hr>
    <input type="text" placeholder="请输入姓名" v-model="keyWord">
    <button @click="sortType=2">降序</button>
    <button @click="sortType=1">升序</button>
    <button @click="sortType=0">原顺序</button>
    <!-- 遍历数组 -->
    <ul>
      <li v-for="p in filPersonList" :key="p.id">
        {{p.id}}-{{p.name}}-{{p.age}}-{{p.sex}}
      </li>
    </ul>
    <hr>
  </div>
</body>
 
</html>
<script type="text/javascript">
  Vue.config.productionTip = false
  const vm = new Vue({
    el: '#root',
    data: {
      keyWord: '',
      sortType: 0,//0 原顺序、1--降序、2--升序
      personList: [
        { id: '001', name: '乔峰', age: 28, sex: '男' },
        { id: '002', name: '虚竹', age: 25, sex: '男' },
        { id: '003', name: '段誉', age: 22, sex: '男' },
        { id: '004', name: '童姥', age: 90, sex: '女' },
        { id: '005', name: '李秋水', age: 88, sex: '女' },
      ],
    },
    computed: {
      // 简写,简写时确保不用settter
      // myfullname: function () {
      filPersonList () {
        const arr = this.personList.filter((p) => {
          return p.name.indexOf(this.keyWord) !== -1
        })
        // 排序
        if (this.sortType) {//0false，1,2true
          arr.sort((p1, p2) => {
            return this.sortType === 1 ? p2.age - p1.age : p1.age - p2.age
          })
        }
        return arr
      },
 
 
    },
 
 
 
  })
</script>