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Within LTS Haskell 24.65 (ghc-9.10.3)

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  1. adjustWithKey :: forall s k a . Ord k => (Key s k -> a -> a) -> k -> Map s k a -> Map s k a

    refined-containers Data.Map.Strict.Refined

    If the given key is in the map, update the associated value using the given function with a proof that the key was in the map; otherwise return the map unchanged. In any case the set of keys remains the same.

  2. isJust :: (OperatorContext c, HasColumnConstraint NotNull r) => Record c (Maybe r) -> Predicate c

    relational-record Database.Relational.Documentation

    Operator corresponding SQL NOT (... IS NULL) , and extended against record type.

  3. isJust :: (OperatorContext c, HasColumnConstraint NotNull r) => Record c (Maybe r) -> Predicate c

    relational-schemas Database.Custom.IBMDB2

    Operator corresponding SQL NOT (... IS NULL) , and extended against record type.

  4. isJust :: (OperatorContext c, HasColumnConstraint NotNull r) => Record c (Maybe r) -> Predicate c

    relational-schemas Database.Custom.MySQL

    Operator corresponding SQL NOT (... IS NULL) , and extended against record type.

  5. isJust :: (OperatorContext c, HasColumnConstraint NotNull r) => Record c (Maybe r) -> Predicate c

    relational-schemas Database.Custom.Oracle

    Operator corresponding SQL NOT (... IS NULL) , and extended against record type.

  6. isJust :: (OperatorContext c, HasColumnConstraint NotNull r) => Record c (Maybe r) -> Predicate c

    relational-schemas Database.Custom.PostgreSQL

    Operator corresponding SQL NOT (... IS NULL) , and extended against record type.

  7. isJust :: (OperatorContext c, HasColumnConstraint NotNull r) => Record c (Maybe r) -> Predicate c

    relational-schemas Database.Custom.SQLServer

    Operator corresponding SQL NOT (... IS NULL) , and extended against record type.

  8. isJust :: (OperatorContext c, HasColumnConstraint NotNull r) => Record c (Maybe r) -> Predicate c

    relational-schemas Database.Custom.SQLite3

    Operator corresponding SQL NOT (... IS NULL) , and extended against record type.

  9. _Just :: forall a b p f . (Choice p, Applicative f) => p a (f b) -> p (Maybe a) (f (Maybe b))

    strict-base-types Data.Maybe.Strict

    Analogous to _Just in Control.Lens.Prism

  10. fromJust :: Maybe a -> a

    strict-base-types Data.Maybe.Strict

    Extracts the element out of a Just and throws an error if the argument is Nothing.

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