20210606vue学习笔记
- 计算属性的使用
同种情况如果既可以使用computued，和method，多用computued
<!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">
<h2>{{firstName+' '+lastName}}</h2>
<h2>{{getFullName()}}</h2>
<h2>{{fullName}}</h2>//不需要（）因为调用时默认调用了get方法
</div>
<script src ="../test/vue.js"></script>
<script>
const app=new Vue({
el:'#app',
data:{ //用于挂载元素
firstName:'Lebron',
lastName:'James'
} ,
computed:{
fullName:function(){
return this.firstName+' '+this.lastName
}
},
methods:{
getFullName(){
return this.firstName+' '+this.lastName
}
}
})
</script>
</body>
</html>