This video on getElementByClassName () Method in JavaScript will take you through the more profound concept of accessing a single or many elements with the help of a class attribute. In addition, you’ll also understand how the getElementByClassName method is different from other methods in JavaScript for accessing an element. You’ll get to know when to use which method for accessing an element. Below are the points we are going to discuss in this JavaScript tutorial for beginners.

00:00:00 Introduction
00:00:54 Why accessing an element is important in JavaScript.
00:01:58 Using ClassName() method to access an element.
00:09:13 Accessing all the elements with similar class name.
00:10:42 Difference between TagName(), ClassName () and ID method

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What is a GetElementsByClassName() method in JavaScript?
This method can access many elements or a single element with the same class present in an HTML document. The ClassName() method comes into play when the user wants to access a bunch of elements at once, but the elements are not the same. This method returns an HTML collection in the form of an Array, and one can access any one or all the elements present in the Array.
Introduction to JavaScript:
JavaScript is a scripting language that is used to create and manage dynamic web pages, basically anything that moves on your screen without requiring you to refresh your browser. It can be anything from animated graphics to an automatically generated Facebook timeline. When most people get interested in web development, they start with good old HTML and CSS. From there, they move on to JavaScript, which makes sense, because, these three elements together form the backbone of web development. HTML is the structure of your page like the headers, the body text, any images you want to include. It basically defines the contents of a web page. CSS controls how that page looks (it’s what you’ll use to customize fonts, background colors, etc.). JavaScript is the third element. Once you’ve created your structure (HTML) and your aesthetic vibe (CSS), JavaScript makes your site dynamic (automatically updateable).

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