JavaScript is the programming language of HTML and the Web.
Programming makes computers do what you want them to do.
JavaScript is easy to learn.
This tutorial will teach you JavaScript from basic to advanced.
Examples in Each Chapter
With our "Try it Yourself" editor, you can change all examples and view the results.
We recommend reading this tutorial, in the sequence listed in the left menu.
Learn by Examples
Examples are better than 1000 words. Examples are often easier to understand than text explanations.
This tutorial supplements all explanations with clarifying "Try it Yourself" examples.
If you try all the examples, you will learn a lot about JavaScript, in a very short time!
Why Study JavaScript?
JavaScript is one of the 3 languages all web developers must learn:
1. HTML to define the content of web pages
2. CSS to specify the layout of web pages
3. JavaScript to program the behavior of web pages
This tutorial is about JavaScript, and how JavaScript works with HTML and CSS.
Learning Speed
In this tutorial, the learning speed is your choice.
Everything is up to you.
If you are struggling, take a break, or reread the material.
Always make sure you understand the "Try-it-Yourself" examples and exercises.
JavaScript References
w3ii maintains a complete JavaScript reference, including all HTML DOM, and browser objects.
The reference contains examples for all objects, properties, and methods, and is continuously updated according to the latest web standards.
JavaScript Quiz Test
Test your JavaScript skills at w3ii!
Did You Know?
JavaScript and Java are completely different languages, both in concept
and design.
JavaScript was invented by Brendan Eich in 1995, and
became an ECMA standard
in 1997.
ECMA-262 is the official name. ECMAScript 2016 (June 2016) is the latest JavaScript version.