Vue技术12.3列表过滤

<!DOCTYPE html>>
<html>
    <head>
        <mata 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">
            <!-- 遍历数组 -->
            <h2>人员列表</h2>
            <input type="text" placeholder="请输入名字" v-model="keyWord">
            <ul>
                <li v-for="(p,index) in filPersons" :key="index">
                    {
   
   {p.name}}-{
   
   {p.age}}-{
   
   {p.sex}}
                </li>
            </ul>
           
        </div>
    </body>

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

        new Vue({
      
      
            el:'#root',
            data:{
      
      
                keyWord:'',
                persons:[
                    {
      
      id:'001', name:'马冬梅', age:18,sex:'女'},
                    {
      
      id:'002', name:'周冬雨', age:19,sex:'女'},
                    {
      
      id:'003', name:'周杰伦', age:20,sex:'男'},
                    {
      
      id:'003', name:'温兆伦', age:21,sex:'男'},
                ],
                //filPersons:[]
            },
            //用watch实现
           /* watch:{
                keyWord:{
                    immediate: true,
                    handler(val){
                   this.filPersons = this.persons.filter((p)=>{
                        return p.name.indexOf(val) !== -1
                        })
                    }
                }     
            },*/
            computed:{
      
      
                filPersons(){
      
      
                    return this.persons.filter((p)=>{
      
      
                        return p.name.indexOf(this.keyWord) !== -1
                    })
                }
            }

        })
    </script>
</html>
Vue技术12.3列表过滤

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