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How to delete subset class in jquery
- 青灯夜游Original
- 2022-04-21 18:22:102248browse
Method to delete subset class: 1. Use find() to get all subset elements under the specified element, the syntax is "specified element object.find("*")"; 2. Use removeAttr() to get all subset elements from To remove class from the obtained subset elements, the syntax is "subset element..removeAttr("class")".
The operating environment of this tutorial: windows7 system, jquery1.10.2 version, Dell G3 computer.
jquery deletes a subset of classes
Implementation method:
Use find() method Get all subset elements (including subsets of subsets) under the specified element
-
Use the removeAttr() method to remove the specified attribute from the selected element.
When the parameter of the removeAttr() method is specified as "class", the class can be deleted.
Example:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script src="js/jquery-1.10.2.min.js"></script>
<style>
.div,
div * {
display: block;
border: 2px solid lightgrey;
color: lightgrey;
padding: 5px;
margin: 15px;
}
.a{
color: red;
border: 2px solid red;
}
.b{
color: bisque;
border: 2px solid bisque;
}
</style>
<script>
$(document).ready(function() {
$("button").on("click", function() {
$("ul").find("*").removeAttr("class");
});
});
</script>
</head>
<body class="ancestors">
<div style="width:500px;">div (父节点)
<ul>ul (指定元素)
<li class="a">li (子节点1)
<span class="b">span (孙节点1)</span>
</li>
<li class="a">li (子节点2)
<span class="b">span (孙节点2)</span>
</li>
<li class="a">li (子节点3)
<span class="b">span (孙节点3)</span>
</li>
</ul>
</div>
<button>删除子集class</button>
</body>
</html>
[Recommended learning: jQuery video tutorial, web front-end video】
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