Sure statically typed functional languages are enjoying a lot of success right now, but there are still plenty of LISPs in the playing field like Clojure that c

Sure statically typed functional languages are enjoying a lot of success right now, but there are still plenty of LISPs in the playing field like Clojure that can't be discounted as parlor tricks. You might disagree with them philosophically, but it doesn't change the fact they're being used in production. What bothers me more about JS as a functional language is the lack of tail call optimization. While it's in the ES6 spec, last I heard there was some question of whether it would actually be implemented for web browsers.