jQuery addClass() Method
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jQuery addClass() Method
The jQuery addClass()
method adds the specified class(es) to each element in the set of matched elements.
Adding One Class
Example
HTML Editor
<!DOCTYPE html>
<html lang="en-US">
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<style>
.point{
color: red;
font-size: 22px;
}
</style>
</head>
<body>
<h1>jQuery addClass() Method</h1>
<p>Click on the button to add the class '.point' to this paragraph.</p>
<button>Click Me</button>
<script>
$(document).ready(function(){
$("button").click(function(){
//. in front of className is not necessary.
$("p").addClass("point");
});
});
</script>
</body>
</html>
Syntax
// Add one class
$(selector).addClass(className);
// Add multiple class
$(selector).addClass(className1 className2)
Parameter Values
Value | Type | Explanation |
---|---|---|
className | Required | Specifies one or more class names to be added |
Adding Multiple Classes
Note: Classes are space-separated.
Example
HTML Editor
<!DOCTYPE html>
<html lang="en-US">
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<style>
.point{
color: red;
font-size: 22px;
}
.point1{
font-weight: bold;
font-style: italic;
}
</style>
</head>
<body>
<h1>jQuery addClass() Method</h1>
<p>Click on the button to add classes 'point' and 'point1' to this paragraph.</p>
<button>Click Me</button>
<script>
$(document).ready(function(){
$("button").click(function(){
// no comma separator.
$("p").addClass("point point1");
});
});
</script>
</body>
</html>
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