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1. fromListWith :: (a -> a -> a) -> [(Key, a)] -> Word64Map a

   ghc	GHC.Data.Word64Map.Strict

   Create a map from a list of key/value pairs with a combining function. See also fromAscListWith.

   fromListWith (++) [(5,"a"), (5,"b"), (3,"b"), (3,"a"), (5,"a")] == fromList [(3, "ab"), (5, "aba")]
   fromListWith (++) [] == empty
   

2. fromListWithKey :: (Key -> a -> a -> a) -> [(Key, a)] -> Word64Map a

   ghc	GHC.Data.Word64Map.Strict

   Build a map from a list of key/value pairs with a combining function. See also fromAscListWithKey'.

   let f key new_value old_value = show key ++ ":" ++ new_value ++ "|" ++ old_value
   fromListWithKey f [(5,"a"), (5,"b"), (3,"b"), (3,"a"), (5,"c")] == fromList [(3, "3:a|b"), (5, "5:c|5:b|a")]
   fromListWithKey f [] == empty
   

3. fromListWith :: (a -> a -> a) -> [(Key, a)] -> Word64Map a

   ghc	GHC.Data.Word64Map.Strict.Internal

   Create a map from a list of key/value pairs with a combining function. See also fromAscListWith.

   fromListWith (++) [(5,"a"), (5,"b"), (3,"b"), (3,"a"), (5,"a")] == fromList [(3, "ab"), (5, "aba")]
   fromListWith (++) [] == empty
   

4. fromListWithKey :: (Key -> a -> a -> a) -> [(Key, a)] -> Word64Map a

   ghc	GHC.Data.Word64Map.Strict.Internal

   Build a map from a list of key/value pairs with a combining function. See also fromAscListWithKey'.

   let f key new_value old_value = show key ++ ":" ++ new_value ++ "|" ++ old_value
   fromListWithKey f [(5,"a"), (5,"b"), (3,"b"), (3,"a"), (5,"c")] == fromList [(3, "3:a|b"), (5, "5:c|5:b|a")]
   fromListWithKey f [] == empty
   

5. fromListWith :: (a -> a -> a) -> [(Key, a)] -> CharMap a

   regex-tdfa	Data.IntMap.CharMap2

   No documentation available.

6. fromListWithKey :: (Key -> a -> a -> a) -> [(Key, a)] -> CharMap a

   regex-tdfa	Data.IntMap.CharMap2

   No documentation available.

7. fromListWith :: Enum key => (a -> a -> a) -> [(key, a)] -> EnumMap key a

   regex-tdfa	Data.IntMap.EnumMap2

   No documentation available.

8. fromListWithKey :: Enum key => (key -> a -> a -> a) -> [(key, a)] -> EnumMap key a

   regex-tdfa	Data.IntMap.EnumMap2

   No documentation available.

9. fromListAccum :: [(Key, Value)] -> Object

   attoparsec-aeson	Data.Aeson.Parser.Internal

   fromListAccum kvs is an object mapping keys to arrays containing all associated values from the original list kvs.

   >>> fromListAccum [("apple", Bool True), ("apple", Bool False), ("orange", Bool False)]
   fromList [("apple",Array [Bool False,Bool True]),("orange",Array [Bool False])]
   

10. fromListWith :: Ord k => (a -> a -> a) -> T [] (k, a) -> T k a

    non-empty	Data.NonEmpty.Map

    \xs -> Map.fromListWith (++) (NonEmpty.flatten xs) == NonEmptyMap.flatten (NonEmptyMap.fromListWith (++) (xs::NonEmpty.T [] (Int,String)))
    

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