Actually, Javascript was originally a target for PyPy, and there was a working implementation before it was dropped since the developers thought that PyPy was b

Actually, Javascript was originally a target for PyPy, and there was a working implementation before it was dropped since the developers thought that PyPy was being spread too thin; at that time PyPy was already was targeting the JVM, .net, llvm, and C. Note that there is also a working implementation of Javascript that runs on PyPy. This project was actually an implementation of Python that compiled to Javascript as a target.