Recent questions tagged haskell

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

haskell - How to compare two functions for equivalence, as in (λx.2*x) == (λx.x+x)?

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1.1k views 1 answer

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

haskell - Why is lazy evaluation useful?

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1.1k views 1 answer

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

haskell - Ordering of parameters to make use of currying

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988 views 1 answer

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

haskell - What constitutes a fold for types other than list?

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991 views 1 answer

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

haskell - Why doesn't this function work if I use "[xs]" instead of "xs"?

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1.0k views 1 answer

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

haskell - Euler 43 - is there a monad to help write this list comprehension?

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1.2k views 1 answer

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

haskell - Composing function composition: How does (.).(.) work?

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1.2k views 1 answer

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

haskell - How to extract value from monadic action

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1.3k views 1 answer

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

haskell - Scala: How to define "generic" function parameters?

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1.2k views 1 answer

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

haskell - DatatypeContexts Deprecated in Latest GHC: Why?

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1.2k views 1 answer

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

haskell - How do I use fix, and how does it work?

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1.2k views 1 answer

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

haskell - What is indexed monad?

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945 views 1 answer

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

haskell - Using return vs. not using return in the list monad

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1.1k views 1 answer

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

haskell - IO happens out of order when using getLine and putStr

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1.2k views 1 answer

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

haskell - Positive integer type

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1.2k views 1 answer

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

haskell - Confused by the meaning of the 'Alternative' type class and its relationship to other type classes

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1.0k views 1 answer

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

haskell - What are paramorphisms?

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1.1k views 1 answer

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

haskell - Non exhaustive pattern in function in GHCi

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1.5k views 1 answer

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

haskell - Explicitly import instances

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1.2k views 1 answer

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

haskell - How to use (->) instances of Monad and confusion about (->)

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1.1k views 1 answer

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

haskell - Concrete example showing that monads are not closed under composition (with proof)?

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931 views 1 answer

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

haskell - Writing foldl using foldr

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1.1k views 1 answer

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

haskell - foldl versus foldr behavior with infinite lists

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1.2k views 1 answer

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

haskell - A monad is just a monoid in the category of endofunctors, what's the problem?

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1.2k views 1 answer

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

haskell - Finite comprehension of an infinite list

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1.2k views 1 answer

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

haskell - What is the purpose of Rank2Types?

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997 views 1 answer

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

haskell - Multi-line commands in GHCi

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1.3k views 1 answer

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

haskell - What's so bad about Lazy I/O?

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1.2k views 1 answer

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