This book starts off with the basics, assuming no programming or JavaScript knowledge, but quickly gets up to speed covering all the main topics in great depth such as functions, objects, and DOM manipulation. More advanced topics such as error handling and testing, functional programming, and OOP are then introduced after the basics have been covered. There have been some exciting new developments in the world of JavaScript over the last few years such as Ajax, HTML5 APIs, and task runners, and these are covered in the last part of the book. There’s also a practical project to build a quiz application that is developed throughout the book towards the end of each chapter.