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pierangeloc / Advanced-FP-with-Scala.md

Last active September 28, 2017 23:15 — forked from jdegoes/Applied-FP-with-Scala.md

Advanced Functional Programming with Scala - Notes

1. Mastering Functions

A function is a mapping from one set, called a domain, to another set, called the codomain. A function associates every element in the domain with exactly one element in the codomain. In Scala, both domain and codomain are types.

val square : Int => Int = x => x * x