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2 different ways to add class using JavaScript. JavaScript provides 2 different ways by which you can add classes to HTML elements: Using element.classList.add() Method; Using className property; Using both methods you can add single or multiple classes at once. 1. Using element.classList.add() Method
Learn how to add a class name to an element with JavaScript. Add Class. Click the button to add a class to me! Add Class. Step 1) Add HTML: Add a class name to the div element with id="myDIV" (in this example we use a button to add the class). Example. <button onclick="myFunction ()"> Try it </button> <div id="myDIV"> This is a DIV element. </div>
If you want to add a class, first use String.indexOf in order to check if class is present in className. If it's not present, just concatenate a blank character and the new class name to this property.
3 ways to add a class to a DOM element in JavaScript. There are multiple ways of doing this. 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, change or remove them.
In this article, you will learn 3 different ways JavaScript add class to HTML elements. You will see different variations like adding multiple classes to the element, adding class to the body, creating a new element, etc.
To add multiple classes to an element, select the element and pass multiple classes to the classList.add() method. The add() method takes one or more classes and adds them to the element. Here is the HTML for the examples. index.html.
JavaScript Class Syntax. Use the keyword class to create a class. Always add a method named constructor():
Learn how to add, remove, and toggle CSS classes in vanilla JavaScript without jQuery by using the classList property.
In JavaScript, adding a class name to an element allows you to style or manipulate it via CSS or JavaScript. This can be achieved using different methods. Here, we’ll explore two common approaches: using the .className property and the .add () method. Below are the different approaches that could be used to add a class name to the element:
How to Add a Class to an Element With Vanilla JavaScript. April 27th, 2020. JavaScript. Adding a class to an HTML element is simple when using JavaScript’s classList property method, add(). First, we take a quick look at the generic formula — and follow up with a practical example.