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How to query the last child element with jquery
- 青灯夜游Original
- 2022-05-13 18:29:149230browse
Two methods: 1. Use children() and ":last-child" selector, syntax "$(parent element).children(":last-child")". 2. Use children() and eq(), the syntax is "$(parent element).children().eq(-1)".
The operating environment of this tutorial: windows7 system, jquery1.10.2 version, Dell G3 computer.
Two methods for jquery to query the last child element
Method 1: Use children() and:last-childselector
Use children() to get all direct child elements under the specified parent node
Use:last-child to select the last element in the child element collection, that is, the last child element
Example:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<script src="js/jquery-1.10.2.min.js"></script>
<script>
$(function () {
$("button").click(function () {
$("ul").children(":last-child").css("color","red");
})
})
</script>
</head>
<body>
<ul>
<li>香蕉</li>
<li>苹果</li>
<li>梨子</li>
<li>橘子</li>
</ul>
<button>父元素ul的最后一个子元素</button>
</body>
</html>
Method 2: Use children() and eq()
Use children() to get all direct child elements under the specified parent node
Use eq(-1) to select the last element in the sub-element set, that is, the last sub-element
Based on the above example, modify:
$(function() {
$("button").click(function() {
$("ul").children().eq(-1).css("color", "red");
})
})
[Recommended learning: jQuery video tutorial, web front-end video]
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