vue中过滤数据动态渲染 

<!DOCTYPE html>
<html>

<head>
  <meta charset="UTF-8" />
  <title>列表过滤</title>
  <script type="text/javascript" src="../js/vue.js"></script>
</head>

<body>
  <!-- 准备好一个容器-->
  <div id="root">
    <h2>人员列表</h2>
    <input type="text" placeholder="请输入名字" v-model="keyWord">
    <ul>
      <li v-for="(p,index) of filPerons" :key="index">
        {{p.name}}-{{p.age}}-{{p.sex}}
      </li>
    </ul>
  </div>

  <script type="text/javascript">
    Vue.config.productionTip = false

    //用watch实现
    //#region 
    /* new Vue({
      el:'#root',
      data:{
        keyWord:'',
        persons:[
          {id:'001',name:'马冬梅',age:19,sex:'女'},
          {id:'002',name:'周冬雨',age:20,sex:'女'},
          {id:'003',name:'周杰伦',age:21,sex:'男'},
          {id:'004',name:'温兆伦',age:22,sex:'男'}
        ],
        filPerons:[]
      },
      watch:{
        keyWord:{
          immediate:true,
          handler(val){
            this.filPerons = this.persons.filter((p)=>{
              return p.name.indexOf(val) !== -1
            })
          }
        }
      }
    }) */
    //#endregion

    //用computed实现
    new Vue({
      el: '#root',
      data: {
        keyWord: '',
        persons: [
          { id: '001', name: '马冬梅', age: 19, sex: '女' },
          { id: '002', name: '周冬雨', age: 20, sex: '女' },
          { id: '003', name: '周杰伦', age: 21, sex: '男' },
          { id: '004', name: '温兆伦', age: 22, sex: '男' }
        ]
      },
      computed: {
        // 这里计算出来的结果可以直接进行渲染
        filPerons() {
          return this.persons.filter((p) => {
            return p.name.indexOf(this.keyWord) !== -1
          })
        }
      }
    }) 
  </script>
</body>

</html>
posted @ 2022-12-29 16:44  你笑的好瓜  阅读(102)  评论(0)    收藏  举报