youtube-dl has a JavaScript interpreter written in 870 lines of pure Python.
https://github.com/ytdl-org/youtube-dl/blob/master/youtube_dl/jsinterp.py
... wow.
https://github.com/ytdl-org/youtube-dl/blob/master/youtube_dl/jsinterp.py
... wow.
@zhuowei Seems like a very limited implementation though, I'm guessing it only supports the language features specifically needed for the JS it is dealing with. I don't think it can do general-purpose JS execution.
