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How to add sibling nodes in jquery
- 青灯夜游Original
- 2022-04-27 17:59:284758browse
How to add sibling nodes in jquery: 1. Use before(), the syntax "$(specified element).before(sibling node)", you can insert sibling nodes before the specified element; 2. Use after() , the syntax "$(specified element).after(sibling node)" allows you to insert sibling nodes after the specified element.
The operating environment of this tutorial: windows7 system, jquery1.10.2 version, Dell G3 computer.
In jquery, you can use the following two methods to add sibling nodes
before() method: Insert specified content before the selected element.
after() method: Insert the specified content after the selected element.
1. Use before() to add sibling nodes forward
before() can insert sibling nodes before the specified element
Syntax:
$(A).before(B)
means inserting the B sibling node in front of the A node.
Example:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<script src="js/jquery-1.10.2.min.js"></script>
<script>
$(function () {
$("button").click(function () {
var a = "<span style='color:red;'>一个span元素</span>";
$("div").before(a);
})
})
</script>
</head>
<body>
<h1>一个大标题</h1>
<p>一个p段落</p>
<div>一个div元素</div>
<p>一个p段落</p>
<button>在div前插入一个兄弟节点</button>
</body>
</html>
2. Use after() to add sibling nodes backwards
after() can insert sibling nodes after the specified element
Syntax:
$(A).after(B)
means inserting the B sibling node after the outside of the A node.
Example:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<script src="js/jquery-1.10.2.min.js"></script>
<script>
$(function () {
$("button").click(function () {
var a = "<span style='color:red;'>一个span元素</span>";
$("div").after(a);
})
})
</script>
</head>
<body>
<h1>一个大标题</h1>
<p>一个p段落</p>
<div>一个div元素</div>
<p>一个p段落</p>
<button>在div前插入一个兄弟节点</button>
</body>
</html>
[Recommended learning: jQuery video tutorial, web front-end video 】
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