Functional Programming in OCaml
The intro page says this course is not about OCaml, but then the remaining pages go into detail about the various features of OCaml. The problem with this approach is that when you read about a feature, you don't know if it is a OCaml-specific thing or whether it is a general functional programming concept.I would like to see a course or textbook that explains functional programming in the abstract. Instead of going into the details of any one functional language, gives examples of how various functional languages implement the various core ideas of functional programming.So, explain functional programming concepts such as pure functions, referential transparency, functors, monoids, monads, effects, lazy evaluation and so on, not in the context of any specific language, but giving examples from multiple functional languages.In other words, focus on functional programming in general, instead of one specific implementation of it. I have been looking for such a textbook or course, but it doesn't exist.