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  1. How To Add a Class Name - W3Schools

    Learn how to add a class name to an element with JavaScript. Click the button to add a class to me! Add a class name to the div element with id="myDIV" (in this example we use a button to …

  2. javascript - How to add a class to a given element? - Stack Overflow

    Nov 28, 2016 · To add a class to an element, without removing/affecting existing values, append a space and the new classname, like so: document.getElementById("MyElement").className …

  3. How can I add a class to a DOM element in JavaScript?

    Jul 12, 2009 · I will show you three ways to add classes and clarify some benefits of each way. You can use any given method to add a class to your element, another way to check for, …

  4. JavaScript adding a class name to the element - GeeksforGeeks

    Jan 10, 2025 · Both .className and .classList.add () are effective ways to add classes to HTML elements using JavaScript. If you want to overwrite all existing classes, use .className. …

  5. Adding a Class to an Element in JavaScript (with code) - FavTutor

    Jan 29, 2024 · Learn how to add a class to an element in JavaScript using className, classList, toggle and setAttribute method, with examples.

  6. Add class to <html> with Javascript? - Stack Overflow

    Dec 20, 2012 · With Jquery... You can add class to html elements like this: $(".divclass").find("p,h1,h2,h3,figure,span,a").addClass('nameclassorid'); nameclassorid no …

  7. How to Add a Class to an Element Using JavaScript

    Mar 20, 2025 · Adding a class to an element can be achieved using different methods in JavaScript. Below are two commonly used approaches with examples. The classList property …

  8. JavaScript Add Class: Learn How To Add Class Names to Elements

    The JavaScript add class uses addClass () method to add a single or more than one class name to elements. During this process, no existing class attributes are removed because the class …

  9. JavaScript Classes - W3Schools

    JavaScript Classes are templates for JavaScript Objects. Use the keyword class to create a class. Always add a method named constructor(): constructor () { ... The example above creates a …

  10. How to Add a Class to an Element Using JavaScript? - Scaler

    May 4, 2023 · Using the .className property is the most straightforward and default way. We can use .className to add a class in javascript; we can also get the name of any pre-existing …