This video on DOM manipulation in JavaScript Part-1 will quickly revise the Document Object Model basics and How it works in JavaScript. In this JavaScript DOM tutorial, we’ll get to know Window object in JavaScript. In addition, we’ll understand How methods present within the Window object are used to manipulate the original HTML document.
Below are the points we are going to discuss in this JavaScript tutorial for beginners.
00:00:00 Introduction
00:00:30 What is DOM?
00:01:21 What is Window Object.
00:03:50 How to use Window Object & methods.

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What is a DOM?
DOM stands for Document Object Model. It is an API for HTML and XML documents, which helps JavaScript to understand what is there written inside the HTML document. API stands for Application Programming Interface. DOM defines the whole HTML document in a hierarchical form to make it understandable for JavaScript so that other JS functions can work over it. It represents the entire document in the form of Objects and nodes. Whether it be elements or tags or anything in the document stored in DOM, the entire page content can be accessed or manipulated by JavaScript.

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).

What is object literal method in JavaScript?
A JavaScript object literal is a comma-separated list of name-value pairs wrapped in curly braces. Constructors encapsulate data, enclosing it in a tidy package. This minimizes the use of global variables which can cause problems when combining code.Whenever we are working with a single object or when we know everything about the properties and the behaviour of an object.
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