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 | |
| Paradigm | Multi-paradigm: object-oriented (prototype-based), functional, imperative, scripting |
|---|---|
| Designed by | Gary Grossman |
| Developer | Macromedia (now dissolved into Adobe Systems) |
| First appeared | 1998 |
| Stable release | 3.0
/ June 27, 2006 |
| Typing discipline | strong, static |
| Website | adobe.com/devnet/actionscript/ |
| Major implementations | |
| Adobe Flash Player, Adobe AIR, Apache Flex, Scaleform GFx | |
| Influenced by | |
| HyperTalk, JavaScript, Java | |
| Influenced | |
| Haxe, TypeScript[1] | |
| Filename extension |
.as |
|---|---|
| Internet media type |
application/ecmascript[2] |
ActionScript is an object-oriented programming language originally developed by Macromedia Inc. (later acquired by Adobe). It is influenced by HyperTalk, the scripting language for HyperCard.[3] It is now an implementation of ECMAScript (meaning it is a superset of the syntax and semantics of the language more widely known as JavaScript), though it originally arose as a sibling, both being influenced by HyperTalk. ActionScript code is usually converted to byte-code format by a compiler.
ActionScript is used primarily for the development of websites and software targeting the Adobe Flash platform, originally finding use on web pages in the form of embedded SWF files.
ActionScript 3 is also used with the Adobe AIR system for the development of desktop and mobile applications. The language itself is open-source in that its specification is offered free of charge[4] and both an open-source compiler (as part of Apache Flex) and open-source virtual machine (Tamarin) are available.
ActionScript was also used with Scaleform GFx for the development of three-dimensional video-game user interfaces and heads up displays.
- ^ Nelson, Gary (April 28, 2020). "How ActionScript foreshadowed TypeScript". Medium. Retrieved July 9, 2022.
- ^ RFC 4329 (limit compatible with EcmaScript)
- ^ "Apple's lost decade, HyperCard, and what might NOT have been if Apple then was like Apple is today". zdnet.com. April 17, 2011. Retrieved December 4, 2014.
- ^ "ActionScript 3 Language Specification". Archived from the original on March 27, 2017. Retrieved November 12, 2016.