Hoogle Search
Within LTS Haskell 24.60 (ghc-9.10.3)
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lookup :: Key -> Word64Map a -> Maybe aghc GHC.Data.Word64Map.Lazy Lookup the value at a key in the map. See also lookup.
lookup :: Key -> Word64Map a -> Maybe aghc GHC.Data.Word64Map.Strict Lookup the value at a key in the map. See also lookup.
lookup :: Key -> Word64Map a -> Maybe aghc GHC.Data.Word64Map.Strict.Internal Lookup the value at a key in the map. See also lookup.
lookup :: Eq a => a -> [(a, b)] -> Maybe bghc GHC.Prelude.Basic No documentation available.
lookup :: Key -> CharMap a -> Maybe aregex-tdfa Data.IntMap.CharMap2 No documentation available.
lookup :: Enum key => key -> EnumMap key a -> Maybe aregex-tdfa Data.IntMap.EnumMap2 No documentation available.
lookup :: Eq a => a -> Fold (a, b) (Maybe b)foldl Control.Foldl (lookup a) returns the element paired with the first matching item, or Nothing if none matches
lookup :: Ord k => k -> T k a -> Maybe anon-empty Data.NonEmpty.Map No documentation available.
lookup :: Keys a -> Metadatas -> Maybe aJuicyPixels Codec.Picture.Metadata Search a metadata with the given key.
lookup :: FromField a => NamedRecord -> ByteString -> Parser acassava Data.Csv Retrieve a field in the given record by name. The result is empty if the field is missing or if the value cannot be converted to the desired type.