Vue监听一个数组id是否与另一个数组id相同的方法

日期：2020-12-23 栏目：程序人生浏览：次

数据list，结构为[{id:1,…},{id:2,…}]，数据shoplist，结构为[{id:1,…},{id:2,…}]，判断当shoplist.id等于list.id时显示list的数据。

.vue文件：

<template> <div> <div> <button @click="clickButtonShopList">click me</button> <span>shoplist-id:</span><input type="text" v-model="shoplist[shopCount].id"> </div> <div> <button @click="clickButtonList">click me</button> <span>list-id:</span><input type="text" v-model="list[listCount].id"> </div> <input v-model="data"> <h2>{{list}}</h2> <h2>{{shoplist}}</h2> </div> </template>

.js文件：

export default { data () { return { msg: 'Welcome to Your Vue.js App', shopCount:0, listCount:0, data:'', list:[{id:1,name:'hello'},{id:2,name:'hello'},{id:3,name:'hello'},{id:4,name:'hello'},{id:5,name:'hello'}], shoplist:[{id:1,name:'hello'},{id:2,name:'hello'},{id:3,name:'hello'},{id:4,name:'hello'},{id:5,name:'hello'}] }; }, methods:{ clickButtonShopList:function () { this.shopCount++; this.shopCount=this.shopCount%this.shoplist.length; this.getData(); }, clickButtonList:function () { this.listCount++; this.listCount=this.listCount%this.list.length; this.getData(); }, getData:function () { this.data=''; if(this.shoplist[this.shopCount].id===this.list[this.listCount].id){ // this.data=this.list; this.data=this.list.map((element)=>{ return element.id+element.name; }).join(',') }else { this.data=''; } } }, mounted: function(){ this.getData(); } }

.less文件：

.list{ margin-top: 20px; } .data{ width: 500px; height:200px; border: 1px solid #666666; margin-top: 20px; }

效果：

刚开始时：

Vue 监听数组id