What is the DOM? A Beginner-Friendly Explanation

The Document Object Model, or DOM, represents an HTML document as a tree of objects. Each element on a webpage becomes a node in this tree.

JavaScript can use the DOM to manipulate elements, change content, update styles, and respond to user interactions.

Example HTML:

<h1 id="title">Hello World</h1>

JavaScript can access and modify it:

const title = document.getElementById("title");
title.textContent = "Welcome to My Website";

Common DOM operations include:

• Selecting elements

• Changing text and HTML

• Adding or removing elements

• Handling events

The DOM is what makes web pages interactive.