/tags/functor/Recent content in functor on ✨Hugo -- gohugo.ioen-usSun, 05 Apr 2020 12:15:35 -0400/post/fp-concepts-functors/Sun, 05 Apr 2020 12:15:35 -0400/post/fp-concepts-functors/At the highest level of abstraction, a functor is a concept in Category Theory, a branch of mathematics that formalizes relationships between abstract objects via formal rules in any given collection of objects, referred to as Categories. A functor is the mapping of one category to another category. That’s a pretty loaded sentence, but no worries, we shouldn’t get bogged down with abstract theory to continue on our journey in understanding functors.