Haskell is the new kid on the block of programming languages. It too follows the computing paradigm called ‘Functional Programming’ i.e. approach a problem in terms of what the solution should ...

I found a whimsically titled tutorial book—Learn You a Haskell for Great Good!—and spent that winter writing Haskell most evenings after work. It was like learning to program all over again.

You would think that would be hideously inefficient, but thanks to Haskell's lazy nature, Haskell doesn't have to be finished reading input before it can start writing output. Now, ideally, it'd be ...