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Within LTS Haskell 24.52 (ghc-9.10.3)

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  1. updateMap :: IsMap map => (MapValue map -> Maybe (MapValue map)) -> ContainerKey map -> map -> map

    mono-traversable Data.Containers

    Apply a function to the value of a given key. If the function returns Nothing, this deletes the key-value pair. Returns the input map when the key-value pair does not exist.

  2. oconcatMap :: (MonoFoldable mono, Monoid m) => (Element mono -> m) -> mono -> m

    mono-traversable Data.MonoTraversable

    Synonym for ofoldMap

  3. ofoldMap :: (MonoFoldable mono, Monoid m) => (Element mono -> m) -> mono -> m

    mono-traversable Data.MonoTraversable

    Map each element of a monomorphic container to a Monoid and combine the results.

  4. ofoldMap1Ex :: (MonoFoldable mono, Semigroup m) => (Element mono -> m) -> mono -> m

    mono-traversable Data.MonoTraversable

    Map each element of a monomorphic container to a semigroup, and combine the results. Note: this is a partial function. On an empty MonoFoldable, it will throw an exception. See ofoldMap1 from Data.NonNull for a total version of this function.

  5. omap :: MonoFunctor mono => (Element mono -> Element mono) -> mono -> mono

    mono-traversable Data.MonoTraversable

    Map over a monomorphic container

  6. omapM :: (MonoTraversable mono, Applicative m) => (Element mono -> m (Element mono)) -> mono -> m mono

    mono-traversable Data.MonoTraversable

    Map each element of a monomorphic container to a monadic action, evaluate these actions from left to right, and collect the results.

  7. omapM_ :: (MonoFoldable mono, Applicative m) => (Element mono -> m ()) -> mono -> m ()

    mono-traversable Data.MonoTraversable

    Map each element of a monomorphic container to a monadic action, evaluate these actions from left to right, and ignore the results.

  8. concatMap :: (MonoFoldable mono, Monoid m) => (Element mono -> m) -> mono -> m

    mono-traversable Data.MonoTraversable.Unprefixed

    Synonym for oconcatMap

  9. foldMap :: (MonoFoldable mono, Monoid m) => (Element mono -> m) -> mono -> m

    mono-traversable Data.MonoTraversable.Unprefixed

    Synonym for ofoldMap

  10. foldMap1Ex :: (MonoFoldable mono, Semigroup m) => (Element mono -> m) -> mono -> m

    mono-traversable Data.MonoTraversable.Unprefixed

    Synonym for ofoldMap1Ex

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