The Document Object Model (DOM) is a fundamental part of how web browsers interpret and manipulate HTML documents. By breaking the DOM into three main components, we can understand it as follows:
The Document is the HTML file that the browser loads. This document serves as the foundation from which all elements are identified and organized.
Here is an example of a simple HTML document:
The entire HTML structure makes up the document.
The Objects or HTML element in the document is represented as an object in the DOM. The browser converts HTML tags into a hierarchical structure of objects, which can be manipulated using JavaScript.
For example:
<h1> is an object.
<p> is an object.
<body> is an object that contains other objects.
We can access and modify these objects using JavaScript:
This code changes the content of the <h1> element.
The Model (Structure and Hierarchy) organizes objects into a tree structure, where some elements are parents, and others are children and together, they form the model.
Example of the DOM structure for the previous HTML document:
In this model, <html> is the root, <head> and <body> are child nodes, and each element within them follows the hierarchy.
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