Klaus Komenda takes us through the history of development patterns of JavaScript demonstrating the pros and cons. Taking a typical JavaScript feature he starts with the old-school global functions method and iterates through a Singleton, Module Pattern, Revealing Module Pattern, Custom Objects and Lazy Function Definitions bringing the same feature up-to-date.
Ben Cherry, web developer at Twitter, takes us step by step through the Module Pattern. He introduces the standard features of Anonymous Closures and avoiding global scope, and covers advanced concepts such as augmentation, cloning, inheritance, private state and sub-modules.