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More than ever, the web is a universal platform for all types of applications, and JavaScript is the language of the web. If you're serious about web development, it's not enough to be a decent JavaScript coder. You need to be ninja-stealthy, efficient, and ready for anything. This book shows you how. Purchase of the print book includes a free eBook in PDF, Kindle, and ePub formats from Manning Publications.About the Technology JavaScript is rapidly becoming a universal language for every type of application, whether on the web, on the desktop, in the cloud, or on mobile devices. When you become a JavaScript pro, you have a powerful skill set that s usable across all these domains.About the Book Secrets of the JavaScript Ninja, Second Edition uses practical examples to clearly illustrate each core concept and technique. This completely revised edition shows you how to master key JavaScript concepts such as functions, closures, objects, prototypes, and promises. It covers APIs such as the DOM, events, and timers. You ll discover best practice techniques such as testing, and cross-browser development, all taught from the perspective of skilled JavaScript practitioners.What s InsideWriting more effective code with functions, objects, and closuresLearning to avoid JavaScript application pitfallsUsing regular expressions to write succinct text-processing codeManaging asynchronous code with promises Fully revised to cover concepts from ES6 and ES7