Since this book is written specifically for Flash developers extending their skill set with HTML5, the first library we cover to aid in JavaScript development has to be CreateJS. CreateJS is a collection of open source, modular JavaScript libraries that can work separately to enable a more seamless transition from ActionScript 3 to JavaScript. CreateJS has been specifically created to easily allow web developers to create, embed, and manipulate media assets into their HTML5 projects with relative ease. This point is especially true if you come from a Flash development background.
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The latest versions of all of the elements within CreateJS as well as the full documentation can be found at http://www.createjs.com.
CreateJS focuses on the asset integration and manipulation end of things to enable you, the developer, to spend more time making sure your project is pixel perfect. There have been some great examples of some amazing projects in the recent past that have made use of this...