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How to modify the value of a specified attribute in jquery

青灯夜游Original: 2022-03-01 16:18:277452browse

In jquery, you can use the attr() method to modify the value of the specified attribute. This method can set the attribute value of the selected element. The syntax "$(selector).attr("Attribute name","Attribute Value ")" or "$(selector).attr({attribute name: attribute value})".

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

In jquery, you can use the attr() method to modify the value of a specified attribute.

attr() method sets or returns the attribute value of the selected element. Depending on the parameters of the method, the way it works is also different.

The syntax for setting attribute values:

$(selector).attr(attribute,value) //单个属性/值对
$(selector).attr({attribute:value, attribute:value ...}) //多个属性/值对

Example:

<!DOCTYPE html>
<html>

	<head>
		<meta charset="UTF-8">
		<script src="js/jquery-1.10.2.min.js"></script>
		<script type="text/javascript">
			$(document).ready(function(){
			  $("button").click(function(){
			    $("img").attr("width","380");
			  });
			});
		</script>

	</head>

	<body>
		<img  src="img/1.jpg"    style="max-width:90%" / alt="How to modify the value of a specified attribute in jquery" >
		<br />
		<button>设置图像的 width 属性</button>
	</body>

</html>

How to modify the value of a specified attribute in jquery

<!DOCTYPE html>
<html>

	<head>
		<meta charset="UTF-8">
		<script src="js/jquery-1.10.2.min.js"></script>
		<script type="text/javascript">
			$(document).ready(function(){
			  $("button").click(function(){
			    $("img").attr({width:"300",height:"350"});
			  });
			});
		</script>

	</head>

	<body>
		<img  src="img/1.jpg"    style="max-width:90%" / alt="How to modify the value of a specified attribute in jquery" >
		<br />
		<button>设置图像的 width 和 height 属性</button>
	</body>

</html>

How to modify the value of a specified attribute in jquery

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

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