Expert JavaScript is your definitive guide to understanding how and why JavaScript behaves the way it does. Master the inner workings of this language by learning in detail how modern applications are made. In mastering every aspect of this powerful language and truly understanding how it works, your JavaScript code and programming skills will improve. This book teaches you: Core fundamentals of the language, including deep dives into functions, scopes, closures, and practical object-oriented code How closures, events, and asynchronous code really operate Conventions and concepts to write JavaScript in a clear, pragmatic style Modern workflow tools to make application development faster, more enjoyable and ostensibly more profitable How to master object-oriented code, and JavaScript design patterns JavaScript is one of the most powerful languages on the web today, and it is only getting stronger. This book will take you through the process of planning, coding, testing, profiling and finally releasing your application, at expert level. With more frameworks and more improvements than ever, now is the time to become an expert at JavaScript. Make this journey - use Expert JavaScript today. What you'll learn The real how and why of JavaScript code, and what's going on when you use it How to really understand libraries such as Mustache.js, Namespace.js and Require.js, and application frameworks such as Angular.js, Backbone.js and Spineless.js What is really going on underneath functions, in arguments, types and scope How closures, events, and asynchronous code work at a fundamental level What really powers object-oriented code, and why JavaScript design patterns work as they do How to apply this new-found knowledge pragmatically to build the very best modern JavaScript applications Who this book is for This book is for the experienced JavaScript programmer who wants to understand the how and why of their code in order to become a better developer. This book is not intended to teach JavaScript at a syntactical level, but instead delve deep into the code - the philosophy, the reasoning and the detailed expert-level knowledge behind it. Thisnew-foundknowledge will enable the reader to build the very best modern JavaScript applications. It is for anyone who wants to become a better programmer by understanding at a very high level how the code works.