Introduction to Functors With Scala 3
You’ve recently started learning functional programming and have been successful in writing functions, but then something unexpected happens. A wild functor appears! What is that? Why is it here?
Don’t be scared, functors are a mathematical structure that arises from category theory, and they can be found everywhere in functional programming. For those of you who don’t know category theory, this will give you enough knowledge to understand functors and use them to program.
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