Re: [Haskell-beginners] Arrow vs. function

23 Mar 2015


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John Wiegley  writes:
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Arrows abstract functions, allowing you to have constructions like Kleisli,
which are Arrows, but compose in the presence of effects using (<=<) rather
than (.).
That is, you compose them using (<<<) as you would using any other Arrow, but
the Arrow instance is using a different form of composition under the hood.

John