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This is a video primarily for Scala folks, but it transfers to other languages e.g. Java, TypeScript, C++ or other typed languages.
In this video we'll explore functors, a critical piece of abstract functional programming. Rather than explaining the theory behind it, we go through a concrete use-case of generalizing an API that would otherwise be terribly bloated and repeated. We show how functors work, how they represent the transferable concept of a "mappable" structure and how we can put them in practice and attach a functor to data structures which are mappable, but don't have a standard map method.
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