“The most popular functional programming language in the world is Excel,” he says. A simple Excel worksheet might have a column with a bunch of values in it, such as A1 X 2.

Learning functional programming can open new doors in your software development career. Whether you’re drawn to the purity of Haskell, the versatility of Scala, or the concurrency strengths of Elixir, ...

In functional programming languages, you have first-class functions (functions that can be passed around just like any other value) and higher-order functions ...

Functional programming languages can have objects, but generally those objects are immutable — either arguments or return values to functions. There are no for/next loops, as those imply state ...

F# is a functional-first programming language that was created by Microsoft Research and is now evolving under the umbrella of the F# Software Foundation. It is supposed to be a neutral and productive ...

A purely functional programming language is a functional language with an explicit way to manage effects like Haskell’s IO type. This definition gets us to the crux of the matter: ...

Programming languages are generally divided into two major groups according to how their commands are processed: imperative languages and functional languages. Imperative programming language ...

Jane Street’s use of Caml was almost accidental, Minsky said. Caml is a dialect of the ML functional programming language, which is widely used in universities as a way to teach programming but ...

Figure 1. Functional JavaScript is available as an ebook (without DRM) from O'Reilly or as a paperback. Anyone who has followed my missives on programming have noted the varied exposure to ...