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  1. lookup :: Ord k => k -> OMap k v -> Maybe v

    th-desugar Language.Haskell.TH.Desugar.OMap

    No documentation available.

  2. lookup :: Ord k => k -> OMap k v -> Maybe v

    th-desugar Language.Haskell.TH.Desugar.OMap.Strict

    No documentation available.

  3. lookup :: (Ord a, Ord b, MonadThrow m) => a -> Bimap a b -> m b

    bimap Data.Bimap

    O(log n). Lookup a left key in the bimap, returning the associated right key. This function will return the result in the monad, or fail if the value isn't in the bimap. Note that the signature differs slightly from Data.Map's lookup. This one is more general - it functions the same way as the "original" if m is cast (or inferred) to Maybe. Version: 0.2

  4. lookup :: (Val v, MonadFail m) => Label -> Document -> m v

    bson Data.Bson

    Lookup value of field in document and cast to expected type. Fail (Nothing) if field not found or value not of expected type.

  5. lookup :: IsMap k m => k -> m a -> Maybe a

    morpheus-graphql-core Data.Morpheus.Internal.Utils

    No documentation available.

  6. lookup :: Eq a => a -> [(a, b)] -> Maybe b

    numeric-prelude NumericPrelude

    lookup key assocs looks up a key in an association list. For the result to be Nothing, the list must be finite.

    Examples

    >>> lookup 2 []
Nothing

    >>> lookup 2 [(1, "first")]
Nothing

    >>> lookup 2 [(1, "first"), (2, "second"), (3, "third")]
Just "second"

  7. lookup :: Eq a => a -> [(a, b)] -> Maybe b

    numeric-prelude NumericPrelude.Base

    lookup key assocs looks up a key in an association list. For the result to be Nothing, the list must be finite.

    Examples

    >>> lookup 2 []
Nothing

    >>> lookup 2 [(1, "first")]
Nothing

    >>> lookup 2 [(1, "first"), (2, "second"), (3, "third")]
Just "second"

  8. lookup :: Eq a => a -> [(a, b)] -> Maybe b

    numhask NumHask.Prelude

    lookup key assocs looks up a key in an association list. For the result to be Nothing, the list must be finite.

    Examples

    >>> lookup 2 []
Nothing

    >>> lookup 2 [(1, "first")]
Nothing

    >>> lookup 2 [(1, "first"), (2, "second"), (3, "third")]
Just "second"

  9. lookup :: Ord k => k -> OMap k v -> Maybe v

    ordered-containers Data.Map.Ordered

    No documentation available.

  10. lookup :: Ord k => k -> OMap k v -> Maybe v

    ordered-containers Data.Map.Ordered.Strict

    No documentation available.

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