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1. mapMaybeM :: Monad m => (a -> m (Maybe b)) -> Stream m a -> Stream m b

   streamly-core	Streamly.Data.Stream

   Like mapMaybe but maps a monadic function. Equivalent to:

   >>> mapMaybeM f = Stream.catMaybes . Stream.mapM f
   

   >>> mapM f = Stream.mapMaybeM (\x -> Just <$> f x)
   

2. mapM :: Monad m => (a -> m b) -> StreamK m a -> StreamK m b

   streamly-core	Streamly.Data.StreamK

   No documentation available.

3. mapM :: Monad m => (b -> m c) -> Unfold m a b -> Unfold m a c

   streamly-core	Streamly.Data.Unfold

   Apply a monadic function to each element of the stream and replace it with the output of the resulting action.

   >>> mapM f = Unfold.mapM2 (const f)
   

4. mapM :: Monad m => (b -> m c) -> Fold m a b -> Fold m a c

   streamly-core	Streamly.Internal.Data.Fold

   Deprecated: Use rmapM instead

5. mapMStep :: Applicative m => (a -> m b) -> Step s a -> m (Step s b)

   streamly-core	Streamly.Internal.Data.Fold

   Map a monadic function over the result b in Step s b. Internal

6. mapMaybe :: forall (m :: Type -> Type) a b r . Monad m => (a -> Maybe b) -> Fold m b r -> Fold m a r

   streamly-core	Streamly.Internal.Data.Fold

   mapMaybe f fold maps a Maybe returning function f on the input of the fold, filters out Nothing elements, and return the values extracted from Just.

   >>> mapMaybe f = Fold.lmap f . Fold.catMaybes
   
   >>> mapMaybe f = Fold.mapMaybeM (return . f)
   

   >>> f x = if even x then Just x else Nothing
   
   >>> fld = Fold.mapMaybe f Fold.toList
   
   >>> Stream.fold fld (Stream.enumerateFromTo 1 10)
   [2,4,6,8,10]
   

7. mapMaybeM :: Monad m => (a -> m (Maybe b)) -> Fold m b r -> Fold m a r

   streamly-core	Streamly.Internal.Data.Fold

   >>> mapMaybeM f = Fold.lmapM f . Fold.catMaybes
   

8. mapAlterF :: (IsMap f, Functor g) => (Maybe a -> g (Maybe a)) -> Key f -> f a -> g (f a)

   streamly-core	Streamly.Internal.Data.IsMap

   No documentation available.

9. mapDelete :: IsMap f => Key f -> f a -> f a

   streamly-core	Streamly.Internal.Data.IsMap

   No documentation available.

10. mapEmpty :: IsMap f => f a

    streamly-core	Streamly.Internal.Data.IsMap

    No documentation available.

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