There are 2 ways to add and remove class using onclick event using the same button. If you want to remove a class, just use String.replace, replacing "[className]" with an empty string. For example, to select all elements with the class “example”, you would use the following: This can be useful if you want to add or remove classes based on a certain criteria. the built-in functionality the classList.add() method provides. Thanks! WebAbout External Resources. Read this Mozilla Developer Network article: Since element.className property is of type string, you can use regular String object functions found in any JavaScript implementation: If you want to add a class, first use String.indexOf in order to check if class is present in className. Let’s “un-italicize” the … How to Add and Remove Class in Javascript, Multiple Class Inheritance Using Interfaces in C#, How to Insert Dash After Every Character in Input in Javascript, How to Insert Dash After Every 2nd Character in Input in Javascript, How to Insert Dash After Every 3rd character in Input in Javascript, How to Add Space After Every 4th Character in Input in Javascript, How to Insert Space After Every 4th Character in Input in Javascript, We have done some basic styling using CSS and added the link to our, We have also included our javascript file, We are displaying that Boolean value in the. @theazureshadow psh, Legacy support is for enterprise solutions, who cares about IE7 outside of the enterprise world. const box = document.getElementById ('box'); // … Why would remotes work reliably on one garage door opener, but unreliable on another? Oh thank you I was trying to do that and it wasn't working but you saved me :), While this might answer the authors question, it lacks some explaining words and/or links to documentation. This article has shown how to add, remove, and toggle classes on elements using the classList property and the className property. … The syntax for Removing CSS classes to an element: $ ('selector').removeClass (class_name); Example: In the this example, we first create an image element and two buttons, the first button for adding CSS classes and the second button for removing CSS classes. To check if the class exists we can use the classList.contains() method. For example if the URL is http://www.mywebsite.com/about_us.asp, I want add the first five letters, in this case 'about', to the body tag: The whole "five characters" thing is a little worrisome; that kind of arbitrary cutoff is usually a red flag. In this article, you'll learn how to add, remove, and toggle CSS classes in JavaScript without jQuery. How To Add Weeks To A Date Object In JavaScript. Twitter Are there ethical ways to profit from uplifting? Elles sont un « sucre syntaxique » par rapport à l'héritage prototypal. How can Estonia give "all" of their 155mm howitzers to Ukraine? This would add the “class1” and “class2” classes to the list of classes on the body element, without removing or replacing any other classes. WebRemove Class Step 1) Add HTML: In this example, we will use a button to remove the "mystyle" class from the