About the project

There are dozens of tools that compile some programming language to JavaScript. You can do it with C++, Java, C#, Python, Scala or Ruby. But there's one language that remains to be covered for JavaScript to dominate the world: JavaScript.

We did it. Meet js2js, a revolutionary compiler that transforms JavaScript directly to JavaScript!

Features

• Control. You have full control over every single bit of the code produced by js2js. You can even compile an invalid JavaScript program to an equally invalid one.
• Zero overhead. js2js will never slow you down. The compiled code has exactly the same performance as the original input.
• Integration. js2js rocks with any other JavaScript technology out there: AngularJS, Emscripten, Vanilla JS, jQuery, CoffeeScript, TypeScript, and even Dart.
• Cross-platform. js2js-powered code supports all kinds of stationary and mobile devices and Web browsers. Even if you develop for Netscape 2.0, we've got you covered.

Usage

To compile your code, use the following command:

node js2.js -i <input_file_or_directory> -o <output_file_or_directory>

Interesting fact: you can compile the code of js2js with js2js and everything will work as expected. Check this out:

>node js2.js -i js2.js -o js2.compiled.js -v
Welcome to js2js compiler.
Compiling js2.js...
Output is written to: js2.compiled.js
Done!

Technology

js2js is written in JavaScript and runs on Node.js.

How can I contribute?

You can fork the project, make your changes and send us pull requests. Or just share it with your friends and make some JavaScript fun together with js2js.