jquery add class
$('some_element').addClass('some-class');
// You can add more than one class at one time
$('some_element').addClass('some-class another-class yet-another-class');
// Even thought jQuery allows you to do this
$('some_element').addClass('some-class').addClass('another-class').addClass('yet-another-class');
// That would be really wasteful, think of the planet!
// But more importantly, your RAM
// oh and those poor folks who be viewing your websiteaddclass jquery
$( "p" ).addClass( "myClass yourClass" );add class jquery
$("#my_id").attr("class", "my_new_class_name");how to add class on the base of has class in jquery
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>addClass demo</title>
<style>
p {
margin: 8px;
font-size: 16px;
}
.selected {
color: red;
}
.highlight {
background: yellow;
}
</style>
<script src="https://code.jquery.com/jquery-3.5.0.js"></script>
</head>
<body>
<p>Hello</p>
<p>and</p>
<p>Goodbye</p>
<script>
$( "p" ).last().addClass( "selected highlight" );
</script>
</body>
</html>Copyright © 2021 Codeinu
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