Monads are Elephants Part 1
Introductions to monads are bit of cottage industry on the Internet. So I figured, "why buck tradition?" But this article will present Scala's way of dealing with monads. An ancient parable goes that several blind men were experiencing their first elephant. "It's a tree," one said while wrapping his arms around its legs. "A large snake," another said while holding its trunk. A third said...um, som
Void vs Unit
I suspect most people who come to one of the statically typed functional languages like SML, OCaml, Haskell, F#, or Scala will have only seen static typing in one of the popular C derived languages like C++, Java, or C#. Some differences in type system become clear fast. One particular spot is the relationship and difference between void and unit. So imagine your favorite C derived language. Consi
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"Fixing" Groovy?
