ActionScript has matured into a full-fledged, object-oriented programming language for creating cutting-edge Web applications, and this comprehensive book is just what you need to succeed. If you want to add interactivity to Flash, build Flex applications, or work with animation — it's all here, and more. Packed with clear instruction, step-by-step tutorials, and advanced techniques, this book is your go-to guide to unlock the power of this amazing language. Learn the basics, apply object-oriented programming, and more. From the Back Cover Build rich Internet applications and more ActionScript has matured into a full-fledged, object-oriented programming language for creating cutting-edge Web applications, and this comprehensive book is just what you need to succeed. If you want to addinteractivity to Flash, build Flex applications, or work with animation — it's all here, and more. Packed with clear instruction, step-by-step tutorials, and advanced techniques, this book is your go-to guide to unlock the power of this amazing language. Learn the basics: expressions, variables, functions, and more Apply object-oriented programming and principles to structure reusable, dependable code Master common data structures such as Strings, Arrays, and Objects Work with XML using the new E4X extensions Take control of the powerful new event model to write interactive software Discover new display types such as Shape and Sprite Add sound, video, animation, and effects Debug, handle errors, and make your applications fault-tolerant Read, write, and store data in binary format