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How to modify parent node attributes in jquery

青灯夜游
青灯夜游Original
2022-05-17 12:53:292301browse

Methods to modify parent node attributes: 1. Use parent() to obtain the parent node object of the specified element, the syntax is "$(specified element).parent()"; 2. Use attr() to modify the parent node object The specified attribute, the syntax is "parent node object.attr({"attribute name":"value","attribute name":"value",...})".

How to modify parent node attributes in jquery

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

The jquery method of modifying the properties of the parent node

needs to be divided into two steps:

  • Get the specified The parent node object of the element

  • Modify the attributes of the selected element

The details will be introduced below.

1. Use the parent() method to obtain the parent node object

  • parent() method returns the selected element 's direct parent element.

$(指定元素).parent(filter)

2. Use the attr() method to modify the specified attributes of the parent node object

attr() method can set the attributes of the selected element and value.

父节点对象.attr({"属性名":"属性值", "属性名":"属性值",...})

Example: Modify the id attribute of the parent node

<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<style>
			.siblings,.siblings *{ 
				display: block;
				border: 2px solid lightgrey;
				color: lightgrey;
				padding: 5px;
				margin: 15px;
			}
			#border{
				border: 2px solid pink;
			}
		</style>
		<script src="js/jquery-1.10.2.min.js"></script>
		<script type="text/javascript">
			$(document).ready(function() {
				$("h2").css("border","2px solid red")
				$("button").click(function() {
					$("h2").parent().attr({"id":"border"})

				});
			});
		</script>
	</head>
	<body>
		<div class="siblings">div (父)
			<p>p(兄弟元素)</p>
			<span>span(兄弟元素)</span>
			<h2>h2(本元素)</h2>
			<h3>h3(兄弟元素)</h3>
			<p>p(兄弟元素)</p>
		</div>
		<button>修改父节点的id属性</button>
	</body>
</html>

How to modify parent node attributes in jquery

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