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1. mapToList :: IsMap map => map -> [(ContainerKey map, MapValue map)]

   mono-traversable	Data.Containers

   Convert a map to a list of key-value pairs.

2. mapWithKey :: IsMap map => (ContainerKey map -> MapValue map -> MapValue map) -> map -> map

   mono-traversable	Data.Containers

   Apply a function over every key-value pair of a map.

3. mapM_ :: (MonoFoldable mono, Applicative m) => (Element mono -> m ()) -> mono -> m ()

   mono-traversable	Data.MonoTraversable.Unprefixed

   Synonym for omapM_

4. mapNonNull :: (Functor f, MonoFoldable (f b)) => (a -> b) -> NonNull (f a) -> NonNull (f b)

   mono-traversable	Data.NonNull

   fmap over the underlying container in a NonNull.

5. mapToDecoder :: (b -> a) -> Codec context any b -> Codec context Void a

   autodocodec	Autodocodec

   Map a codec for decoding bs into a decoder for as. This is useful for building discriminatedUnionCodecs.

6. mapToEncoder :: b -> Codec context b any -> Codec context a ()

   autodocodec	Autodocodec

   Wrap up a value of type b with its codec to produce and encoder for as that ignores its input and instead encodes the value b. This is useful for building discriminatedUnionCodecs.

7. mapCodec :: (Ord k, FromJSONKey k, ToJSONKey k) => JSONCodec v -> JSONCodec (Map k v)

   autodocodec	Autodocodec.Codec

   Encode a Map, and decode any Map.

   API Note

   This is a forward-compatible version of MapCodec.

   mapCodec = MapCodec
   

8. mapToDecoder :: (b -> a) -> Codec context any b -> Codec context Void a

   autodocodec	Autodocodec.Codec

   Map a codec for decoding bs into a decoder for as. This is useful for building discriminatedUnionCodecs.

9. mapToEncoder :: b -> Codec context b any -> Codec context a ()

   autodocodec	Autodocodec.Codec

   Wrap up a value of type b with its codec to produce and encoder for as that ignores its input and instead encodes the value b. This is useful for building discriminatedUnionCodecs.

10. mapBoth :: (a -> c) -> (b -> d) -> Either a b -> Either c d

    either	Data.Either.Combinators

    The mapBoth function takes two functions and applies the first if iff the value takes the form Left _ and the second if the value takes the form Right _. Using Data.Bifunctor:

    mapBoth = bimap
    

    Using Control.Arrow:

    mapBoth = (+++)
    

    >>> mapBoth (*2) (*3) (Left 4)
    Left 8
    

    >>> mapBoth (*2) (*3) (Right 4)
    Right 12
    

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