vue的计算属性 computed计算
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<div id="app">
{{message}}
<h2>{{firstName + lastName}}</h2>
<h2>{{firstName}} {{lastName}}</h2>
<h1>{{getfullName()}}</h1>
<h3>{{fullName}}</h3>
</div>
<script src="../vue.js"></script>
<script>
const app = new Vue({
el: '#app',
data: {
message: 'hello',
firstName: 'Cai',
lastName: 'heng'
},
methods: {
getfullName() {
return this.firstName + ' ' + this.lastName
}
},
computed:{
fullName(){
return this.firstName + ' ' + this.lastName
}
}
})
</script>
</body>
</html>
- 计算属性就是让它变成属性。本质上是实现了，计算属性的get方法