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How to implement multiple tabs in javascript by obtaining the html tag attribute class_javascript skills
How to implement multiple tabs in javascript by obtaining the html tag attribute class_javascript skills
The example in this article describes how javascript implements multiple tabs by obtaining the html tag attribute class. Share it with everyone for your reference. The specific implementation method is as follows:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>原生javascript通过获取html标签属性class实现多选项卡</title>
<style type="text/css">
.tab {
clear: both;
margin: 20px auto;
padding: 10px;
width: 680px;
overflow: hidden;
}
.tab .tab-menu {
margin: 0;
padding: 0;
list-style: none;
}
.tab .tab-menu li {
display: inline;
margin: 0 2px 0 0;
}
.tab .tab-menu li a {
padding: 0 1em;
text-decoration: none;
color: #a80;
background: #fe5;
}
.tab .tab-menu li a:hover {
background: #fc0;
color: #540;
}
.tab .tab-menu .active {
}
.tab .tab-menu .active a {
padding-bottom: 2px;
font-weight: bold;
color: black;
background: #fc0;
}
.tab .tab-panel {
padding: 1em;
border: 2px solid #fc0;
background: #fff;
}
.tab .tab-panel h2 {
font-size: 1.5em;
color: #fc0;
}
.tab .tab-none {
display: none;
}
</style>
<script type="text/javascript">
function Tab(style, scope){
this.oItem = this.getByClass(style, scope);
this.init();
}
Tab.prototype = {
init: function(){
var that = this, menu, m;
for(var i = 0, len = this.oItem.length; i < len; i++){
menu = this.oItem[i].getElementsByTagName('li');
for(var j = 0, mLen = menu.length; j < mLen; j++){
m = menu[j];
m.index = j;
m.onmouseover = function(){that.focus(this);}
}
}
},
focus: function(o){
var par = o.parentNode.parentNode, panel = par.getElementsByTagName('div'),
btn = par.getElementsByTagName('li'), len = btn.length;
for(var i = 0; i < len; i++){
btn[i].className = '';
panel[i].className = this.changeClass(panel[i].className, 'tab-none', true);
}
o.className = 'active';
panel[o.index].className = this.changeClass(panel[o.index].className, 'tab-none', false);
},
changeClass: function(cl, cl2, add){
var flag;
if(cl.match(cl2) != null) flag = true;
if(add ^ flag) return flag ? cl.replace(cl2, '') : cl += ' ' + cl2;
return cl;
},
getByClass: function(cla, obj){
var obj = obj || document, arr = [];
if(document.getElementsByClassName){
return document.getElementsByClassName(cla);
} else {
var all = obj.getElementsByTagName('*');
for(var i = 0, len = all.length; i < len; i++){
if(all[i].className.match(cla) != null) arr.push(all[i]);
}
return arr;
}
}
}
window.onload = function(){
new Tab('tab-menu', null);
}
</script>
</head>
<body>
<div class="tab">
<ul class="tab-menu">
<li class="active"><a href="">111</a></li>
<li><a href="">122</a></li>
<li><a href="">133</a></li>
</ul>
<div class="tab-panel">
111
</div>
<div class="tab-panel tab-none">
122
</div>
<div class="tab-panel tab-none">
133
</div>
</div>
<div class="tab">
<ul class="tab-menu">
<li class="active"><a href="">211</a></li>
<li><a href="">222</a></li>
<li><a href="">233</a></li>
</ul>
<div class="tab-panel">
211
</div>
<div class="tab-panel tab-none">
222
</div>
<div class="tab-panel tab-none">
233
</div>
</div>
<div class="tab">
<ul class="tab-menu">
<li class="active"><a href="">311</a></li>
<li><a href="">322</a></li>
<li><a href="">333</a></li>
</ul>
<div class="tab-panel">
311
</div>
<div class="tab-panel tab-none">
322
</div>
<div class="tab-panel tab-none">
333
</div>
</div>
</body>
</html>
I hope this article will be helpful to everyone’s JavaScript programming design.
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