когда коту делать нечего...

Emscripten is an LLVM to JavaScript compiler. It takes LLVM bitcode (which can be generated from C/C++ using Clang, or any other language that can be converted into LLVM bitcode) and compiles that into JavaScript, which can be run on the web (or anywhere else JavaScript can run).

Using Emscripten, you can

• Compile C and C++ code into JavaScript and run that on the web
• Run code in languages like Python as well, by compiling CPython from C to JavaScript and interpreting code in that on the web

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• This is the Lua interpreter, compiled from C to JavaScript using Emscripten, running in your browser (without any plugins).
• TrueType font rendering in JavaScript, using FreeType
• lzma.js - LZMA ported to JS
• sql.js - SQLite ported to JS

Куда катится мир .. (с) nponeccop