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Asm.js
| Designed by | Mozilla |
|---|---|
| First appeared | 21 March 2013[1] |
| OS | Platform independent |
| Website | asmjs |
| Influenced by | |
| JavaScript | |
| Influenced | |
| WebAssembly | |
asm.js is a subset of JavaScript designed to allow computer software written in languages such as C to be run as web applications while maintaining performance characteristics considerably better than standard JavaScript, which is the typical language used for such applications.
asm.js consists of a strict subset of JavaScript, to which code written in statically typed languages with manual memory management (such as C) is translated by a source-to-source compiler such as Emscripten (based on LLVM).[2] Performance is improved by limiting language features to those amenable to ahead-of-time optimization and other performance improvements.
Mozilla Firefox was the first web browser to implement asm.js-specific optimizations, starting with version 22.[3]
asm.js is superseded by WebAssembly.
- ^ "asm.js in Firefox Nightly". Luke Wagner's blog. 21 Mar 2013. Retrieved 13 Nov 2014.
- ^ Cite error: The named reference
github.comwas invoked but never defined (see the help page). - ^ "Firefox 22.0 release notes". Mozilla. Retrieved July 4, 2013.
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