Take advantage of JavaScript's power to build robust web-scale or enterprise applications that are easy to extend and maintain. By applying the design patterns outlined in this practical book, experienced JavaScript developers will learn how to write flexible and resilient code that's easier-yes, easier-to work with as your code base grows.JavaScript may be the most essential web programming language, but in the real world, JavaScript applications often break when you make changes. With this book, author Eric Elliott shows you how to add client- and server-side features to a large JavaScript application without negatively affecting the rest of your code.Examine the anatomy of a large-scale JavaScript applicationBuild modern web apps with the capabilities of desktop applicationsLearn best practices for code organization, modularity, and reuseSeparate your application into different layers of responsibilityBuild efficient, self-describing hypermedia APIs with Node.jsTest, integrate, and deploy software updates in rapid cyclesControl resource access with user authentication and authorizationExpand your application's reach through internationalization