ES6 class 繼承與面向對象封裝開發簡單實例

時間 2019-12-06

標籤 es6 class 繼承面向對象封裝開發簡單實例欄目 JavaScript 简体版

原文原文鏈接

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>選項卡</title>
<style>
.active{
background-color: #789218;
color:aqua;
}
.box div{
height: 200px;
width: 200px;
border: 1px solid #cccccc;
display: none;
}
</style>
</head>
<body>
<script>
class Tab{
constructor(id){
this.oBox = document.getElementById(id);
this.aBtn = this.oBox.getElementsByTagName('input');
this.aDiv = this.oBox.getElementsByTagName('div');
this.iNow = 0;
this.init();
}
init(){
for(let i=0;i<this.aBtn.length;i++){
this.aBtn[i].onclick=()=>{
this.iNow = i;
document.title = this.iNow;
this.hide();
this.show(i);
}
}
}
hide(){
for(var i = 0; i < this.aDiv.length;i++){
this.aDiv[i].style.display = 'none';
this.aBtn[i].className = '';
}
}
show(index){
this.aDiv[index].style.display = 'block';
this.aBtn[index].className = 'active';
}
}
class AuToTab extends Tab{
constructor(id){
super(id);
setInterval(this.next.bind(this),1000)
}
next(){
this.iNow++;
if(this.iNow == this.aBtn.length)this.iNow=0;
this.hide();
this.show(this.iNow);
}
}
window.onload=()=>{
new Tab('box');
new AuToTab('box2');
}
</script>
<div id="box" class="box">
<input type="button" value="aaa" class="active">
<input type="button" value="bbb">
<input type="button" value="ccc">
<div style="display: block;">1111</div>
<div>2222</div>
<div>3333</div>
</div>
<div id="box2" class="box">
<input type="button" value="aaa" class="active">
<input type="button" value="bbb">
<input type="button" value="ccc">
<div style="display: block;">1111</div>
<div>2222</div>
<div>3333</div>
</div>
</body>
</html>