ActionScript is a programming language for Flash Player run-time environment. It was developed targeting designers to help them program interactivity. Today ActionScript enables efficient programming of flash applications ranging from Intros to complex, data-driven interactive applications.
ActionScript 1 started with Flash 5, which used “prototype” extensively to program interactive components for flash movies. ActionScript 2 was introduced with Flash MX 2004, which for the first time got Object Oriented concepts and implementations. Even though programmers using OOP methodologies final compiled binary was still using the ActionScript 1 format, hence the performance of flash applications were not that good by then.
Here came ActionScript 3, will lots on improvements over earlier version, AVM (ActionScript Virtual Machine) was written from the scratch, standardized components creation and usage methods. Closing up lot many security loop holes, still maintaining the backward support.
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