The getElementsByClassName() method returns a collection of elements with a specified class name (s). The getElementsByClassName() method returns an HTMLCollection.

Jun 3, 2025 · The getElementsByClassName method of Document interface returns an array-like object of all child elements which have all of the given class name (s). When called on the document object, …

Sep 28, 2010 · The way it works is by looping through all of the elements in the document, and searching their class list for matchClass. If a match is found, the contents is replaced.

Jul 23, 2025 · When working with the DOM in JavaScript, selecting elements by their class names is a common task. JavaScript provides several methods to achieve this, whether we need to select one …

Dec 10, 2025 · This guide will walk you through the entire process: from selecting elements by class using JavaScript methods like getElementsByClassName and querySelectorAll, to replacing their …

The getElementsByClassName () method is a straightforward and efficient way to select elements by class name, particularly when you don’t need the flexibility of more complex CSS selectors.

In this tutorial, you will learn how to use the JavaScript getElementsByClassName () method to select elements by class name.

Apr 2, 2025 · Learn how to use JavaScript's getElementsByClassName method effectively with examples and detailed explanations. Enhance your web development skills with this step-by-step …

Apr 10, 2025 · The Element method getElementsByClassName () returns a live HTMLCollection which contains every descendant element which has the specified class name or names.

Oct 20, 2025 · Select multiple HTML elements by their class name using document.getElementsByClassName () for group element manipulation.