Fastest functional programming language

By this definition, Haskell, Mercury, Clean etc are pure functional languages; whereas Scala, Clojure, F#, OCaml etc are impure ones.

Python . Python continues to be one of the best programming languages every developer should learn this year. The language is easy-to-learn and offers a clean and well-structured code, making it powerful enough to build a decent web application.

While C++ is just one of the many imperative languages that now have lambdas, what makes C++ lambdas special is that (similar to functional programming languages ) they can preserve the concept of working with values as opposed to identities.