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JavaScript JavaScript and the DOM (Retiring) Getting a Handle on the DOM Selecting Elements with the Same Class Name

Vic Mercier
Vic Mercier
3,276 Points
Posted by Vic Mercier
Vic Mercier
3,276 Points

Dom and class

There is a way to change the class name using only JavaScript?

2 Answers

Owa Aquino
Owa Aquino
19,277 Points
Owa Aquino
Owa Aquino
19,277 Points

Hi Vic,

Yes, what you need is to get that DOM element and remove first it's (existing) class by classList.remove() method and then supply a new class with classList.add() method.

Check this out for more details: http://callmenick.com/post/add-remove-classes-with-javascript-property-classlist https://developer.mozilla.org/en/docs/Web/API/Element/classList

Hope this help! Cheers!

Stephan Olsen
Stephan Olsen
6,650 Points
Stephan Olsen
Stephan Olsen
6,650 Points

You can use the classList property to add and remove a class. Example:

document.getElementsByClassName('originalClass').classList.add('newClassName');
document.getElementsByClassName('newClassName').classList.remove('originalClass');