How to replace class style in jquery-JS Tutorial-php.cn

How to replace class style in jquery

青灯夜游

Release： 2021-11-22 11:18:07

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Replacement method: 1. Use the removeClass() method to remove the old class style, and the addClass() method to add a new class style; 2. Use the attr() method to modify the class attribute and directly replace it with the new one. The class class is enough, the syntax is "$(element).attr("class","new class name")".

How to replace class style in jquery

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

jquery replacement class style

Method 1: Use removeClass() and addClass() methods

Use the removeClass() method to remove the old class style, and use the addClass() method to add a new class style

<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<script src="js/jquery-1.10.2.min.js"></script>
		<script>
			$(document).ready(function(){
			  $("button").click(function(){
				$("p").removeClass("old-class").addClass("new-class") ;
			  });
			});
		</script>
		<style type="text/css">
			.old-class{
				border: 1px solid red; 
				background-color: #FFC0CB;
			}
			.new-class{
				border: 2px solid green; 
				background-color: #55aa7f;
				color: white;
			}
		</style>
	</head>
	<body>
		<p class="old-class">hello，测试文字</p>
		<button>替换类样式</button>
	</body>
</html>

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How to replace class style in jquery

Method 2: Use attr()

Use the attr() method to modify the class attribute and replace it directly with the new class class

<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<script src="js/jquery-1.10.2.min.js"></script>
		<script>
			$(document).ready(function(){
			  $("button").click(function(){
				$("p").attr("class","new-class");
			  });
			});
		</script>
		<style type="text/css">
			.old-class{
				border: 1px solid red; 
				background-color: #FFC0CB;
			}
			.new-class{
				border: 2px solid green; 
				background-color: #55aa7f;
				color: white;
			}
		</style>
	</head>
	<body>
		<p class="old-class">hello，测试文字</p>
		<button>替换类样式</button>
	</body>
</html>

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How to replace class style in jquery

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