I like reading snippets of code about concepts that I don\'t understand. Are there any snippets that show off monads in all 开发者_Python百科their glory? More importantly how can I apply monads to mak
Who first said the following? A monad is just a monoid in the category of endofunctors, what\'s the problem?
I\'m trying to get my head around error handling in Haskell. I\'ve found the article "8 ways to report errors in Haskell" but I\'m confused as to why Maybe and Either behave differently.
According to you, which language do you 开发者_C百科think would be the best for implementing monads (Python/Ruby/LISP)?,also can anyone tell me some possible uses of monads (please give examples),like
I\'m playing with some kind of DSL defined by an monadic interface. Since applying the monad using a bunch of flatMap applications is kind of cumbersome and I find for-comprehension syntactically not
Can anybody explain why exceptions may be thrown outside the IO monad, but may only be caught insid开发者_如何转开发e it?One of the reasons is the denotational semantics of Haskell.
Suppose I have a state monad such as: data Registers = Reg {...} data ST = ST {registers :: Registers, memory:: Array Int Int}
Is every method on a class which returns this a mon开发者_JS百科ad?I\'m going to say a very cautious \"possibly\".A lot of this is contingent on your definitions.
I am new at haskell, I have to write a program context-aware,so I thoughtI can use the Reader Monad for keeping the context read from a file, I know how to read the file puting the conten开发者_如何转
As Moggi proposed 20 years ago, the effectful function space -> of languages like ML can be decomposed into the standard total function space => plus a strong monad T to capture effects.
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