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How to select the first child element in jquery

青灯夜游
青灯夜游Original
2021-11-19 14:42:396312browse

Jquery method to select the child element: 1. Use the children() method to get all direct child elements of the specified element, the syntax is "$("specified element").children()"; 2. Use eq () method selects sub-elements based on index numbers, the syntax is "sub-element.eq(index)".

How to select the first child element in jquery

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

jquery selects the child element

In jquery, you can use the children() eq() method to select the child element

  • The children() method returns all direct child elements of the selected element.

  • eq() method returns the element with the specified index number of the selected element. Index numbers start with 0, so the index number of the first element is 0 (not 1).

<!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(){
				$("div").children().eq(1).css("background-color","yellow");
			  });
			});
		</script>
	</head>
	<body>

		<div>
			<p>这是 div 元素中的段落。</p>
			<p>这是 div 元素中的段落。</p>
			<p>这是 div 元素中的段落。</p>
		</div>
		<button>选择div元素的第2个子元素</button>

	</body>
</html>

How to select the first child element in jquery

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