The footer says that if you want a real "Javascript to Javascript interpreter", to see js.js[0], which is a JS interpreter written JS; where the satirical js2js

The footer says that if you want a real "Javascript to Javascript interpreter", to see js.js[0], which is a JS interpreter written JS; where the satirical js2js is a JS-to-JS compiler, something different. If you want a real JS to JS compiler, see Google's "Closure Compiler"[1]. [0]: https://github.com/jterrace/js.js/ https://github.com/jterrace/js.js/ [1]: https://developers.google.com/closure/compiler/ https://developers.google.com/closure/compiler/ / https://github.com/google/closure-compiler https://github.com/google/closure-compiler