I have no official data, but I don't think it's used beyond the academic and hobbyist level. However, I must say that understanding the functional paradigm (le

I have no official data, but I don't think it's used beyond the academic and hobbyist level. However, I must say that understanding the functional paradigm (learning Racket is a really good exercise) can help developers write really professional software with Scala, Elixir, Clojure, etc.