This eagerly anticipated update to the breakout book on JavaScript offers you an in-depth look at the numerous advances to the techniques and technology of the JavaScript language. You'll see why JavaScript's popularity continues to grow while you delve through topics such as debugging tools in Microsoft Visual Studio, FireBug, and Drosera; client-side data storage with cookies, DOM storage, and client-side databases; HTML 5, ECMAScript 3.1, the Selectors API; and design patterns including creational, structural, and behavorial patterns.