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Within LTS Haskell 22.24 (ghc-9.6.5)

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1. mapFindWithDefault :: IsMap map => a -> KeyOf map -> map a -> a

   ghc	GHC.Cmm.Dataflow.Collections

   No documentation available.

2. lookupWithDefaultUFM :: Uniquable key => UniqFM key elt -> elt -> key -> elt

   ghc	GHC.Types.Unique.FM

   No documentation available.

3. lookupWithDefaultUFM_Directly :: UniqFM key elt -> elt -> Unique -> elt

   ghc	GHC.Types.Unique.FM

   No documentation available.

4. lookupWithDefaultUniqMap :: Uniquable k => UniqMap k a -> a -> k -> a

   ghc	GHC.Types.Unique.Map

   No documentation available.

5. lookupWithDefaultVarEnv :: VarEnv a -> a -> Var -> a

   ghc	GHC.Types.Var.Env

   No documentation available.

6. lookupWithDefaultModuleEnv :: ModuleEnv a -> a -> Module -> a

   ghc	GHC.Unit.Module.Env

   No documentation available.

7. findWithDefault :: a -> Key -> CharMap a -> a

   regex-tdfa	Data.IntMap.CharMap2

   No documentation available.

8. findWithDefault :: Enum key => a -> key -> EnumMap key a -> a

   regex-tdfa	Data.IntMap.EnumMap2

   No documentation available.

9. findWithDefault :: IsMap map => MapValue map -> ContainerKey map -> map -> MapValue map

   mono-traversable	Data.Containers

   Like lookup, but uses a default value when the key does not exist in the map.

10. findWithDefault :: Ord k => a -> k -> Map k a -> a

    rio	RIO.Map

    The expression (findWithDefault def k map) returns the value at key k or returns default value def when the key is not in the map.

    findWithDefault 'x' 1 (fromList [(5,'a'), (3,'b')]) == 'x'
    findWithDefault 'x' 5 (fromList [(5,'a'), (3,'b')]) == 'a'
    

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