:: m a -> m b -> m (a, b)

Generalized version of concurrently.

Generalized version of concurrently.

Default '>*< implementation for non-invertible Applicatives.

O(min(m,n)) Zip two vectors.

Pair two samples. It's like zip but requires that both samples have equal size.

O(min(m,n)) Zip two vectors

Decides if two structures match exactly. If they match, return zipped version of them.

zipMatch ta tb = Just tab

holds if and only if both of

ta = fmap fst tab
tb = fmap snd tab

holds. Otherwise, zipMatch ta tb = Nothing. For example, the type signature of zipMatch on the list Functor [] reads as follows:

zipMatch :: [a] -> [b] -> Maybe [(a,b)]

zipMatch as bs returns Just (zip as bs) if the lengths of two given lists are same, and returns Nothing otherwise.

Example

>>> zipMatch [1, 2, 3] ['a', 'b', 'c']
Just [(1,'a'),(2,'b'),(3,'c')]

>>> zipMatch [1, 2, 3] ['a', 'b']
Nothing