In jquery, you can use the removeClass() method to delete the element classname. The function of this method is to remove one or more classes from the selected element. If no parameters are specified, all classes of the element will be deleted. The syntax is: "Element object.removeClass("classname")".
The operating environment of this tutorial: windows10 system, jquery3.2.1 version, Dell G3 computer.
removeClass() method removes one or more classes from the selected element.
Note: If no parameters are specified, this method will remove all classes from the selected elements.
Syntax
$(selector).removeClass(class)
class is optional. Specifies the name of the class to be removed.
If you need to remove several classes, please use spaces to separate class names.
If this parameter is not set, all classes will be removed.
The example is as follows:
<html>
<head>
<script type="text/javascript" src="/jquery/jquery.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("button").click(function(){
$("p").removeClass("intro");
});
});
</script>
<style type="text/css">
.intro
{
font-size:120%;
color:red;
}
</style>
</head>
<body>
<h1 id="h1">This is a heading</h1>
<p class="intro">This is a paragraph.</p>
<p>This is another paragraph.</p>
<button>从第一个段落中删除类</button>
</body>
</html>Output result:
Video tutorial recommendation: jQuery video tutorial
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