原生js 实现 toggleClass
[pcsh lang="js" tab_size="4" message="" hl_lines="" provider="manual"]
<style type="text/css">
div.testClass{
background-color:gray;
}
</style>
<script type="text/javascript">
function hasClass(obj, cls) {
return obj.className.match(new RegExp('(\\s|^)' + cls + '(\\s|$)'));
}
function addClass(obj, cls) {
if (!this.hasClass(obj, cls)) obj.className += " " + cls;
}
function removeClass(obj, cls) {
if (hasClass(obj, cls)) {
var reg = new RegExp('(\\s|^)' + cls + '(\\s|$)');
obj.className = obj.className.replace(reg, ' ');
}
}
function toggleClass(obj,cls){
if(hasClass(obj,cls)){
removeClass(obj, cls);
}else{
addClass(obj, cls);
}
}
function toggleClassTest(){
var obj = document. getElementById('test');
toggleClass(obj,"testClass");
}
</script>
<body>
<div id = "test" style = "width:250px;height:100px;">
sssssssssssss
</div>
<input type = "button" value = "toggleClassTest" onclick = "toggleClassTest();" />
</body>
[/pcsh]
最后更新于 2017-03-17 15:58:08 并被添加「」标签,已有 620 位童鞋阅读过。
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