JavaScript Tutorial in Hindi for Beginners [Part 38] - Document Object Model (DOM) in JavaScript 

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In this video i will talk about Document Object Model (DOM) in JavaScript.
The Document Object Model (DOM) is the data representation of the objects that comprise the structure and content of a document on the web.
When a web page is loaded, the browser creates a Document Object Model of the page.
The HTML DOM model is constructed as a tree of Objects.
The Document Object Model (DOM) is a programming interface for HTML and XML documents. It represents the page so that programs can change the document structure, style, and content. The DOM represents the document as nodes and objects. That way, programming languages can connect to the page.
A Web page is a document. This document can be either displayed in the browser window or as the HTML source. But it is the same document in both cases. The Document Object Model (DOM) represents that same document so it can be manipulated. The DOM is an object-oriented representation of the web page, which can be modified with a scripting language such as JavaScript.
With the object model, JavaScript gets all the power it needs to create dynamic HTML:
JavaScript can change all the HTML elements in the page
JavaScript can change all the HTML attributes in the page
JavaScript can change all the CSS styles in the page
JavaScript can remove existing HTML elements and attributes
JavaScript can add new HTML elements and attributes
JavaScript can react to all existing HTML events in the page
JavaScript can create new HTML events in the page
Note: In the DOM, all HTML elements are defined as objects. so it will have both property and method
The document object represents your web page.
If you want to access any element in an HTML page, you always start with accessing the document object.
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