Where in the past we used to have a few lines of JavaScript embedded in an occasional web page, now we have advanced libraries and extended architectures, powering the "fat-client", AJAX-type rich internet applications. JavaScript is the language of the browser, but also a lot of work in other environments: server-side programming, desktop applications, application extensions and widgets. While this book has a special chapter dedicated to a web browser environment including DOM, events, and AJAX tutorials, the rest applies to all other environments as well. This book treats JavaScript as a serious object-oriented language, showing you how to build a strong library, maintained, and strong, and applications. What you will learn from this book? * Learn to think in JavaScript, the language of web browsers * The basics of object-oriented programming, and how they apply to JavaScript * Set up and use your training environment (Firebug) * Master Data types, operators, and control flow statements * Understand the functions: usage patterns, variable scope, and built-in functions Closing * Demystified * Create and use objects * Understand and use prototypes * Reuse code with common patterns for inheritance * Understand and work with the BOM (Browser Object Model) * DOM (Document Object Model) - accessing, modifying, adding, and deleting nodes * Building a responsive web pages with AJAX * JSON (JavaScript Object Notation) * Listen and respond to browser events * Apply design patterns to solve common problems * Adopt coding patterns that unleash the power unique language * Make your programs cleaner, faster, and compatible with other programs and libraries * Achieve missing object-oriented features in JavaScript such as private property and method Who is this book written for? This book requires no previous knowledge of JavaScript and work from the ground up to provide a thorough grounding in the language stronger. This book takes a do-it-yourself approach when it comes to writing code, because the best way to really learn a programming language is by writing code.