Recent questions tagged haskell

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haskell - Why "and []" is True and "or []" is False

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 963 views

haskell - Writing in pointfree style f x = g x x

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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haskell - How to create a type bounded within a certain range

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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haskell - What types of problems helps "higher-kinded polymorphism" solve better?

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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haskell - What does eta reduce mean in the context of HLint

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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haskell - Why is GHC complaining about non-exhaustive patterns?

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 1.2k views

haskell - Instance Show for function

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 735 views

haskell - How to deal with application state in Gtk2Hs

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 965 views

haskell - subsequences of length n from list performance

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 736 views

haskell - How Monads are considered pure?

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 801 views

haskell - Is the composition of an arbitrary monad with a traversable always a monad?

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 823 views

haskell - How do you compute the difference between successive elements of a list of unknown size, functionally?

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 710 views

haskell - How to install/use a local version of package using Stack?

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 1.1k views

haskell - Why does the 2-tuple Functor instance only apply the function to the second element?

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 796 views

haskell - Infinite type error when defining zip with foldr only; can it be fixed?

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 783 views

haskell - Are Functor instances unique?

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 711 views

haskell - Should I use typeclasses or not?

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 801 views

haskell - Seeking constructive criticism on monad implementation

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 818 views

haskell - GHCi "let" -- what does it do?

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 740 views

haskell - What does let 5 = 10 do? Is it not an assignment operation?

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 724 views

haskell - Constructing efficient monad instances on `Set` (and other containers with constraints) using the continuation monad

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 853 views

haskell - Maybe "kind-of" monad in Python

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 733 views

haskell - Do ghc-compiled binaries require GHC or are they self-contained?

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 1.0k views

haskell - how to implement doubly linked lists

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 949 views

haskell - What is the difference between $ (dollar) and $! (dollar exclamation point)

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 738 views

haskell - Why recursive `let` make space effcient?

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 664 views

haskell - What’s an example of a Monad which is an Alternative but not a MonadPlus?

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 742 views

haskell - How to hack GHCi (or Hugs) so that it prints Unicode chars unescaped?

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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