jQuery is an open-sourced JavaScript library that simplifies HTML Document Object Model (DOM) manipulation, Asynchronous JavaScript and XML (Ajax) and event handling.

Now you're ready to start learning about the JavaScript Document Object Model (DOM) and how to interact with it in "JavaScript DOM Explorer with Mini Applications".

The primary use of JavaScript is to write functions that are embedded in or included from HTML pages and that interact with the Document Object Model (DOM) of the page.