Beginning Scala 3: A Functional and Object-Oriented Java Language

© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2022

D. Pollak et al.Beginning Scala 3https://doi.org/10.1007/978-1-4842-7422-4_4

4. Functional Programming

David Pollak¹  , Vishal Layka² and Andres Sacco³

(1)

San Francisco, CA, USA

(2)

Bruxelles, Belgium

(3)

Ciudad Autonoma de Buenos Aires, Argentina

 

In the non-fiction work Old Times on the Mississippi, Mark Twain wrote, “When I was a boy of 14, my father was so ignorant I could hardly stand to have the old man around. But when I was 21, I was astonished at how much the old man had learned in seven years.” Functional programming is the old man who comes to the rescue when writing robust concurrent software. Functional programming treats computation as the evaluation ...