The Monad Challenges
A set of challenges for jump starting your understanding of monads.
Outline
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Generalizing pairs and cards
As we have done before, look at your allPairs and allCards functions and find the differences. Then implement a more general function that can be used to implement both allPairs and allCards. Call this new function allCombs.
allCombs :: (a -> b -> c) -> [a] -> [b] -> [c]Then go back and reimplement allPairs and allCards in terms of allCombs. Verify that they do the same thing as the original functions.