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by vamega
4389 days ago
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Yes, one of the worst mistakes I've seen people make is trying to write Haskell exactly like you write code in other languages like Python. If you ignore the power of Haskell's type system, and write all your code imperatively in the IO Monad, and continue to write large functions that do many things instead of writing smaller functions that can be composed, you gain almost nothing from Haskell, and you might have been better off writing your code in another language. |
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Don't know about that. Even if you write everything in the IO monad, Haskell is still a pretty great imperative language and many people say it may possibly one of the best imperative languages ever written.
If you only use IO, then yes, you no longer gain the ability to reify and isolate effects as values but all the other strengths of Haskell's type system mostly remain invariant and just as useful.