>>20
Fake ``asynchronous'' callbacks
Wet-flannel OOP idiocy
``Functional'' programming (if it was intentional, why isn't function shorter?)
Fast in the same way you can actually polish a turd if you try hard enough (http://en.wikipedia.org/wiki/Dorodango)
Other (more sane) languages have had typed arrays since at least the 70s
Disclaimers: Not quoting, just using quotes as bullet points. Also, I do actually write Javascript in day-to-day life.