Hoogle Search

Within LTS Haskell 24.32 (ghc-9.10.3)

Note that Stackage only displays results for the latest LTS and Nightly snapshot. Learn more.

Exact lookup

1. fromMaybe :: e -> Maybe a -> Exceptional e a

   explicit-exception	Control.Monad.Exception.Synchronous

   No documentation available.

2. fromMaybeT :: forall (m :: Type -> Type) e a . Monad m => e -> MaybeT m a -> ExceptionalT e m a

   explicit-exception	Control.Monad.Exception.Synchronous

   No documentation available.

3. toMaybe :: Exceptional e a -> Maybe a

   explicit-exception	Control.Monad.Exception.Synchronous

   No documentation available.

4. toMaybeT :: forall (m :: Type -> Type) e a . Monad m => ExceptionalT e m a -> MaybeT m a

   explicit-exception	Control.Monad.Exception.Synchronous

   No documentation available.

5. contramapMaybeGLogFunc :: (a -> Maybe b) -> GLogFunc b -> GLogFunc a

   rio	RIO

   A vesion of contramapMaybeGLogFunc which supports filering.

6. indexMaybe :: ByteString -> Int -> Maybe Word8

   rio	RIO.ByteString

   O(1) ByteString index, starting from 0, that returns Just if:

   0 <= n < length bs
   

7. mapMaybe :: (v1 -> Maybe v2) -> HashMap k v1 -> HashMap k v2

   rio	RIO.HashMap

   Transform this map by applying a function to every value and retaining only some of them.

8. mapMaybeWithKey :: (k -> v1 -> Maybe v2) -> HashMap k v1 -> HashMap k v2

   rio	RIO.HashMap

   Transform this map by applying a function to every value and retaining only some of them.

9. headMaybe :: [a] -> Maybe a

   rio	RIO.List

   No documentation available.

10. initMaybe :: [a] -> Maybe [a]

    rio	RIO.List

    No documentation available.

Page 158 of many | Previous | Next