Either - BHC Documentation

isLeft :: (Either a b) -> Bool { } #

isRight :: (Either a b) -> Bool { } #

O(1). Extract from Left<a> with a default for Right<a>.

O(1). Extract from Right<a> with a default for Left<a>.

O(n). Extract all Left values from a list.

rights :: [Either a b] -> [b] { } #

O(n). Extract all Right values from a list.

partitionEithers :: [Either a b] -> ([a], [b]) { } #

O(n). Partition a list of Either<a> into Left<a> and Right values.