postgrest/docs/Maybe.md

Maybe

maybe :: b -> (a -> b) -> Maybe a -> b

isJust :: Maybe a -> Bool

isNothing :: Maybe a -> Bool

fromJust :: Maybe a -> a

fromMaybe :: a -> Maybe a -> a

listToMaybe :: [a] -> Maybe a

maybeToList :: Maybe a -> [a]

catMaybes :: [Maybe a] -> [a]

mapMaybe :: (a -> Maybe b) -> [a] -> [b]