CoffeeScript is JavaScript done right. In the first book on this exciting new language, CoffeeScript guru Trevor Burnham shows you how to hold onto all the power and flexibility of JavaScript while writing clearer, cleaner, and safer code. You'll start with the basics of CoffeeScript, as Trevor gets you quickly - and entertainingly - up to speed on functions, collections, and classes. You'll learn how CoffeeScript cleans up JavaScript syntax yet maintains full compatibility with all your existing JavaScript code. And you'll dive deep, writing a full multiplayer online game in CoffeeScript, step by step, adding features to the game as you learn new features of CoffeeScript. You'll test your newfound skills with exercises in every chapter that help you extend your CoffeeScript knowledge Trevor takes you beyond the language to show you how to integrate CoffeeScript into the whole JavaScript development environment. You'll discover how to exploit all the power of the JQuery library in CoffeeScript. And you'll take your CoffeeScript apps server-side with Node.js. CoffeeScript civilizes JavaScript, letting you write clean, readable, powerful JavaScript code. This book lets you start doing it today. You'll need CoffeeScript 1.0 and Node.js.