Recent questions tagged haskell

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haskell - Making (a, a) a Functor

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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haskell - Combining multiple states in StateT

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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haskell - ExitFailure 9 when trying to install ghc-mod using Cabal

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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haskell - Why is catching an exception non-pure, but throwing an exception is pure?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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haskell - Creating infinite list out of ADT

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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haskell - Stack build fails due to missing package although stack ghci works

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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haskell - What's the most standard/generic way to zip a traversable with a list?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 1.1k views

haskell - In Functional Programming, is it considered a bad practice to have incomplete pattern matchings

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 941 views

haskell - Advantages of strict fields in data types

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 838 views

haskell - Is there a fast algorithm to determine the godel number of a term of a context free language?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 994 views

haskell - What's so special about 'return' keyword

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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haskell - How can I set my GHCi prompt to a lambda character on Windows?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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haskell - Practical use of curried functions?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 1.0k views

haskell - Yesod: Getting a database entity by ID from an Int

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 1.1k views

haskell - What does 'qualified' mean in 'import qualified Data.List' statement?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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haskell - How to work with AST with Cofree annotation?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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haskell - exceptions and monad transformers

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 1.2k views

haskell - What do the parentheses signify in (x:xs) when pattern matching?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 934 views

haskell - efficiently checking that all the elements of a (big) list are the same

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 1.1k views

haskell - Understanding GHC assembly output

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 1.1k views

haskell - Make GHC only type-check?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 1.2k views

haskell - Why MonadPlus and not Monad + Monoid?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 1.1k views

haskell - zipWith analogue in Python?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 1.1k views

haskell - Scotty: connection pool as monad reader

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 891 views

haskell - How to design a monadic stack?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 1.3k views

haskell - Flipped / reversed fmap (<$>)?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 1.1k views

haskell - Data families vs Injective type families

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 969 views

haskell - How to express existential types using higher rank (rank-N) type polymorphism?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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