Vue $refs使用

  • 概述

    $refs可用于获取html对象，或Vue实例对象

  • 使用

    <!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Vue父子件数据传递(自定义v-model方式)</title>
</head>
<body>
<div id="app">
    <cmp ref="cmp"></cmp>
    <input type="button" ref="btn" value="获取cmp组件中的name属性" @click="getCmpName">
    <h2>cmp组件name：{{ cmp_name }}</h2>
    <button @click="btnValCahnge('名称被修改了...')">修改上个按钮的名称</button>
</div>

<template id="cmp">
    <h2>这是cmp组件</h2>
</template>

<script src="https:///npm/vue/dist/vue.js"></script>
<script>
    let app = new Vue({
        components:{
            cmp: {
                template: '#cmp',
                data(){
                    return {
                        name: 'com中的name'
                    }
                }
            }
        },
        data:{
            cmp_name: ''
        },
        methods:{
            getCmpName() {
                this.cmp_name = this.$refs.cmp.name
            },
            btnValCahnge(val){
                this.$refs.btn.value = val
            }
        }
    }).$mount('#app')
</script>
</body>
</html>