monads

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Is F#'s implementation of monads unique with respect to the amount of keywords available to it?

I only know F#. I haven\'t learned the other functional programming languages. All the examples that I have seen for monads only describe the bind and unit methods. F# has lots of keywords (e.g. let!,[详细]

2023-03-05 14:00 分类：问答
Lazily evaluate monadic functions in Haskell

I can\'t seem to figure out a workaround for this issue i\'m having. I have something like this: getFilePathForDay :: Day -> IO (Maybe FilePath)[详细]

2023-03-05 02:26 分类：问答
What is the name of this Monad Stack function?

I\'ve got a bunch of stateful functions inside a State monad. At one point in the program there needs to be some IO actions so I\'ve wrapped IO inside a StateT getting a pair of types like this:[详细]

2023-03-05 00:04 分类：问答
Type signatures for a mutable Haskell Heap

I want to make in Haskell a mutable array based heap (the basic kind found everywhere else). There are some things I don\'t like about my initial approach, however:[详细]

2023-03-05 00:01 分类：问答
Is this a candidate for computational expressions?

I have the following c# code, it does a check on permissions. I\'m wondering if, when converted to f#, would computational expressions be a way to factor ou开发者_高级运维t the null checks.[详细]

2023-03-04 12:50 分类：问答
Haskell: How is join a natural transformation?

I开发者_运维知识库 can define a natural transformation in Haskell as: h :: [a] -> Maybe a h []= Nothing[详细]

2023-03-03 15:42 分类：问答
Relax ordering constraints in monadic computation

here is some food for thought. When I write monadic code, the monad imposes ordering on the operations done. For example, If I write in the IO monad:[详细]

2023-03-03 06:30 分类：问答
Haskell - Checking the Validity of a File Handle

Ok, guys, super easy question (it seems weird that Google didn\'t help me with this one): import IO --.... yadda, yadda, yadda[详细]

2023-03-02 16:08 分类：问答
State monad in OCaml

I was trying to implement the state monad in OCaml (as an exercise). My implementation looks like this:[详细]

2023-03-02 13:21 分类：问答
How do i write the following function with the >>= operator

How d开发者_Go百科o I write this function using the >>= operator? parseNumber2 :: Parser LispVal parseNumber2 = do x <- many1 digit[详细]

2023-03-01 20:21 分类：问答