The ActionScript™ 3.0 Migration Guide: Making the Move from ActionScript 2.0

Introduction

If you’re an ActionScript developer with a computer science background, and you made the leap to ActionScript 3 when it was officially released in 2006, you don’t need this book. But if you came to ActionScript through any of the myriad other routes Adobe Flash developers take—for example, from a background in design or animation—you might be like thousands of your peers, still writing your code with the familiar ActionScript 2.

Although the move from ActionScript 2 to ActionScript 3 is significant, the learning curve isn’t as steep as it seems. AS3 provides a completely new structure for the language and requires a new virtual machine; but even with these changes, those who are familiar with AS2 should not have a hard time making ...