I’m getting some Smalltalk vibes looking at the examples.

Oh, I just read it was mentioned in the history of the project too.

I know it's probably not for everyone, but yeah I like the general idea of Smalltalk. However, xoscript does not have the whole vm/image thing. Also no classes, just prototypes. So I guess it sits more between smalltalk and js. You can create a class by overriding the new-method of an object though. That will essentially give you a class.