Javascript is just as good for learning the concept of functional programming. It's often (jokingly) called Scheme with C-like syntax. Unlike lisps though, it d

Javascript is just as good for learning the concept of functional programming. It's often (jokingly) called Scheme with C-like syntax. Unlike lisps though, it doesn't give you macros, which is even more mind-bogling than first-class functions. Ruby also has decent fp-semantics, but they are not as clearly cut as in Javascript.