[esmooov]

I think Jeremy's real point is that Javascript is an entirely different beast than Haskell or Java or Ruby. Why? Javascript depends on a free and open code environment to get around the fact that the actual language's development moves glacially, you have no control of the deploy environment (unless you are a browser developer or are working in node) and it is not easy to manage large projects (inclusion and namespacing features are lacking or limited in JS). In fact, the only feature that allows JS to keep up at all with these other languages is that it tells its developers "Look, I don't have a lot of fancy features and I haven't really changed in about a decade, but I'm entirely open. Hack and abuse me at your pleasure, codify me if you must, I'll take it. I always do."

None of the proposed object-lockdown would prevent anything. You could use decorators, you could use an adapter, hell you could rewrite or fork the useful library and take out the object-locks. But all of those introduce the very overhead that JS benefits from avoiding. I mean compare the size of "Javascript Pattern" to the GOF book. What's more, languages like Java are written with a sensitivity toward design patterning, Haskell has robust types/interfaces. Javascript just has a big empty box, prototypes and closures. (This is an exaggeration but if you declaim it loudly enough you will get a chuckle.)