How can I change an element's class with JavaScript, please provide sample?

Question

Aryan Kumar · Answer

Sure, here is how to change an element's class with JavaScript:
JavaScript
// Get the element
var element = document.getElementById("myElement");
// Get the current classes
var currentClasses = element.classList;
// Add the new class
currentClasses.add("new-class");
// Remove the old class
currentClasses.remove("old-class");
The element variable will contain a reference to the element whose class you want to change. The
classList property of the element variable will contain an array of the element's current classes. The
add() method of the classList property will add a new class to the element. The
remove() method of the classList property will remove a class from the element.
Here is an example of how to use this code:
HTML
andlt;html>
andlt;body>
andlt;div id="myElement" class="my-class">This is my elementandlt;/div>
andlt;script>
// Get the element
var element = document.getElementById("myElement");
// Get the current classes
var currentClasses = element.classList;
// Add the new class
currentClasses.add("new-class");
// Remove the old class
currentClasses.remove("my-class");
andlt;/script>
andlt;/body>
andlt;/html>
This code will create a div element with the class "my-class". The console.log() method will print the element's current classes to the console. After the code is executed, the element will have the class "new-class" and will no longer have the class "my-class".

forum

How can I change an element's class with JavaScript, please provide sample?

Utpal Vishwas

Can you answer this question?

1 Answers

Liked By