How to delete subset class in jquery-Front-end Q&A-php.cn

How to delete subset class in jquery

青灯夜游

Release： 2022-04-21 18:22:10

Original

2167 people have browsed it

Method to delete subset class: 1. Use find() to get all subset elements under the specified element, the syntax is "specified element object.find("*")"; 2. Use removeAttr() to get all subset elements from To remove class from the obtained subset elements, the syntax is "subset element..removeAttr("class")".

How to delete subset class in jquery

The operating environment of this tutorial: windows7 system, jquery1.10.2 version, Dell G3 computer.

jquery deletes a subset of classes

Implementation method:

Use find() method Get all subset elements (including subsets of subsets) under the specified element
Use the removeAttr() method to remove the specified attribute from the selected element.

When the parameter of the removeAttr() method is specified as "class", the class can be deleted.

Example:

<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<script src="js/jquery-1.10.2.min.js"></script>
		<style>
			.div,
			div * {
				display: block;
				border: 2px solid lightgrey;
				color: lightgrey;
				padding: 5px;
				margin: 15px;
			}
			.a{
				color: red;
				border: 2px solid red;
			}
			.b{
				color: bisque;
				border: 2px solid bisque;
			}
		</style>

		<script>
			$(document).ready(function() {
				$("button").on("click", function() {
					$("ul").find("*").removeAttr("class");
				});
			});
		</script>
	</head>

	<body class="ancestors">
		<div style="width:500px;">div (父节点)
			<ul>ul (指定元素)
				<li class="a">li (子节点1)
					<span class="b">span (孙节点1)</span>
				</li>
				<li class="a">li (子节点2)
					<span class="b">span (孙节点2)</span>
				</li>
				<li class="a">li (子节点3)
					<span class="b">span (孙节点3)</span>
				</li>
			</ul>
		</div>
		<button>删除子集class</button>
	</body>

</html>

Copy after login

How to delete subset class in jquery

[Recommended learning: jQuery video tutorial, web front-end video】

The above is the detailed content of How to delete subset class in jquery. For more information, please follow other related articles on the PHP Chinese website!