to write \"map f (map g xs)\" as a single call to map you could write example xs = map (f.g) xs but how would you write \"filter p (filter q xs)\" as a single call to filt开发者_StackOverflower? t
I\'ve installed Haskell via the pre built installer v6.8.2. When trying to compile this sample file with GHC
One way to calculate 2^8 in haskell is by writing product(replicate 8 2) When trying to create a function for this, defined as follows...
The type of this function is function :: Num a => ([Char],a) -> ([Char],a) My input for this function would be something like (\".\'*\",0) and the function finds the first \'.\' or \'*\' and up
I\'m trying to get a mapping function like this working for an n-ary tree, but am struggling. data NTree a = Leaf a | Node a [NTree a]
I\'m reading A Gentle Introduction to Haskell (which is not so gentle) and it repeatedly uses the : operator without directly explaining what it does.
I have a list of n-bit \"words\" type BitWord = [Bool] and a trie which stores the word from the top to bottom:
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I\'ve been trying to figure out if there is already an accepted method for testing file io operations in Haskell, but I have yet to find any information that is useful for what I am trying to do.
New to Haskell and have a stumbling block. I\'m trying to filter a list of tuples based on the first item.
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