A Functor is a ubiquitous typeclass involving type constructors of
kind * → *, which is another way of saying types that have a
single type variable. Examples might be Option, List, Future.
The Functor category involves a single operation, named map:
def map[A, B](fa: F[A])(f: A => B): F[B]
This method takes a Function from A => B and turns an F[A] into an F[B]
A Functor is a ubiquitous typeclass involving type constructors of kind * → *, which is another way of saying types that have a single type variable. Examples might be Option, List, Future.
The Functor category involves a single operation, named
map:def map[A, B](fa: F[A])(f: A => B): F[B]
This method takes a Function from A => B and turns an F[A] into an F[B]