This article is about pure functional programming. As for functional programming, all of the recent languages (Rust, D, Go, Clojure, Scala, etc.) have function

This article is about pure functional programming. As for functional programming, all of the recent languages (Rust, D, Go, Clojure, Scala, etc.) have functional features such as lambda functions. I don't think it's a stretch to say lack of support for functional programming is not an option for new languages. As a couple of examples of software written in a functional language, consider Twitter and (ironically) Hacker News.