console
var app = new Vue({
el: '#app',
data: {
message: 'Hello Vue!',
arr:[
{
text:2323,
},
],
list:[],
flag:false
},
mounted (){
setTimeout(()=>{
this.arr[0].age = 999999;
console.log(this.arr);
this.list.push(1);
},2000);
},
computed: {
check(){
return (num)=>{
console.log('checked');
return this.list.includes(num);
}
},
isInside(){
console.log('isInside');
return this.list.includes(1);
}
},
methods:{
click(){
this.flag = !this.flag;
},
}
})
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<div id="app">
{{message}}
<div v-for="iterm in arr">
{{iterm.text}}
{{iterm.age}}
</div>
<h2 @click="click">dian</h2>
<div class="test" v-if="isInside" v-show="flag">test</div>
</div>
</body>
</html>