JavaScript is the ubiquitous programming language of the Web, and for more than 15 years, JavaScript: The Definitive Guide has been the bible of JavaScript programmers around the world. This book is an all-new excerpt of The Definitive Guide, collecting the essential parts of that hefty volume into this slim yet dense pocket reference.

The first 9 chapters document the latest version (ECMAScript 5) of the core JavaScript language, covering:

• Types, values, and variables


• Operators, expressions, and statements


• Objects and arrays


• Functions and classes

The next 5 chapters document the fundamental APIs for using JavaScript with HTML5 and explain how to:

• Interact with web browser windows


• Script HTML documents and document elements


• Modify and apply CSS styles and classes


• Respond to user input events


• Communicate with web servers


• Store data locally on the user's computer

This book is a perfect companion to jQuery Pocket Reference.