“Functional Scala” by Mario Gleichmann

"Functional Scala" is a set of tutorials on Scala programming language by Mario Gleichmann. Although a bit verbose, it introduces the key constructs of Scala, and outlines Scala’s primary features from the perspective of functional programming.

Welcome to the first part of a series of episodes about ‘Functional Scala’. While positioning itself as a so called object-functional language, most of the discussion and articles about Scala centered around its object oriented features so far. If you’re reading this, chances are you want to learn more about the functional side of Scala. Well, you’ve come to the right place.

The idea for the following episodes arose out of some talks i gave about ‘Functional Scala’. I decided to write and talk about it because I wanted to solidify my own knowledge about Functional Programming in general and about Scala in particular … and because I thought I could help some people new to Scala to learn its functional features from my perspective.

Not least, there were some critical discussions in the past whether Scala is rightfully characterized as a functional Language. For this to decide, we firstly have to be clear about the core ideas, you’ll regularly come across within widely accepted functional Languages, like Haskell. We’re going to see if and how they are offered in Scala and try to push them to its limits. So without any further ado, let’s enter the world of Functional Programming (FP) in Scala.



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