The DOM

Core Learning

An Introduction to the DOM in JavaScript

  1. Understand how the browser, DOM, HTML, and JS interact with one another.
  2. Understand generally how HTML translates to a document tree.

  1. Understand the DOM's role in "Browser Wars" of the 1990s.

  1. Make sure you go through all the interactive examples!
  2. You can even try opening up your browser dev tools and running similar commands on a webpage of your choice.

  1. Understand how React's Virtual DOM interacts with the actual DOM.

Knowledge Check

Take this customized & interactive quiz to test your knowledge on The DOM.

Question 1 of 3

The Document Object Model (DOM) is a interface that treats an XML or HTML document as a tree structure wherein each node is an object representing a part of the document.

The DOM
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