js set class
var element = document.getElementById('element');
element.classList.add('class-1');
element.classList.add('class-2', 'class-3');
element.classList.remove('class-3');js set class
var element = document.getElementById('element');
element.classList.add('class-1');
element.classList.add('class-2', 'class-3');
element.classList.remove('class-3');javascript add class to element
var someElement= document.getElementById("myElement");
someElement.className += " newclass";//add "newclass" to element (space in front is important)change class javascript
Syntax:
document.getElementById('myElement').className = "myclass";
<html>
<head>
<title>Change class of an element with javascript</title>
<style type="text/css">
.redbutton{
background-color: red;
}
.greenbutton{
background-color: green;
}
</style>
<script type="text/javascript">
function changeClass() {
document.getElementById('clickme').className = "greenbutton";
var new_class = document.getElementById('clickme').className;
document.getElementById('classChange').innerHTML = "New Class Name : "
+ new_class;
}
</script>
</head>
<body>
<button class="redbutton" id="clickme" onclick="changeClass()"
>Change Class</button><br>
<p id="classChange">Class Name: redbutton</p>
</body>
</html>Copyright © 2021 Codeinu
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