<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<!--<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>-->
<script type="text/javascript" src="../js/vue.js"></script>
</head>
<body>
<div id="hdcms">
<li v-for="v in stus">
{{v.name}} - {{v.sex}}
</li>
{{type}}
<input type="radio" v-model="type" value="girl"> 女孩
<input type="radio" v-model="type" value="boy"> 男孩
</div>
<script>
var app = new Vue({
el: '#hdcms',
computed:{
stus(){
if(this.type=='all'){
return this.user;
}else{
//方法一:
// Type=this.type; //這里的this指的是當前因點擊的input里的value值而改變到的data里的type值
// return this.user.filter(function(v){ //括號里的v是循環data/user里的當前數組
// return v.sex ==Type;
// });
//方法二:可以直接把this.type的值傳遞給filter里.這里的this指的是當前因點擊的input里的value值而改變到的data里的type值
return this.user.filter((v)=>{
//用改變后的data里的type值去逐條過濾user里的sex值是否匹配.匹配后才返回此條.
return v.sex ==this.type;
});
}
}
},
data: {
type:'all',
user:[
{name:'小明',sex:'boy'},
{name:'小強',sex:'boy'},
{name:'小麗',sex:'girl'},
{name:'小梅',sex:'girl'}
]
}
});
</script>
</body>
</html>
效果:
