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  1. (<<-$) :: h a b -> (h a b -> h a' b) -> h a' b

    histogram-fill Data.Histogram.Fill

    Apply function which modify builder

  2. (<$>) :: Functor f => (a -> b) -> f a -> f b

    hledger-web Hledger.Web.Import

    An infix synonym for fmap. The name of this operator is an allusion to $. Note the similarities between their types: 

    ($)  ::              (a -> b) ->   a ->   b
(<$>) :: Functor f => (a -> b) -> f a -> f b
    Whereas $ is function application, <$> is function application lifted over a Functor.

    Examples

    Convert from a Maybe Int to a Maybe String using show: 
    >>> show <$> Nothing
Nothing

    >>> show <$> Just 3
Just "3"
    Convert from an Either Int Int to an Either Int String using show: 
    >>> show <$> Left 17
Left 17

    >>> show <$> Right 17
Right "17"
    Double each element of a list: 
    >>> (*2) <$> [1,2,3]
[2,4,6]
    Apply even to the second element of a pair: 
    >>> even <$> (2,2)
(2,True)

  3. (<$>) :: Functor f => (a <-> b) -> f a -> f b

    invertible Control.Invertible.Functor

    An infix synnonym for fmap.

  4. (>$) :: Functor f => a -> f a -> f ()

    invertible Control.Invertible.Monoidal

    Given a value an an invariant for that value, always provide that value and ignore the produced value. fmap . flip consts ()

  5. (>$<) :: Functor f => (a <-> b) -> f a -> f b

    invertible Control.Invertible.Monoidal

    Another synonym for fmap to match other operators in this module.

  6. (<$>) :: IsoFunctor f => (a <-> b) -> f a -> f b

    invertible Data.Invertible.PartialIsomorphism

    Apply a bijection over a IsoFunctor using <$>.

  7. (<$>) :: Functor f => (a <-> b) -> f a -> f b

    invertible Data.Invertible.Prelude

    An infix synnonym for fmap.

  8. (<>$) :: LAct x s => s -> x -> x

    lr-acts Data.Act.Act

    Infix synonym or lact The acting part is on the right of the operator (symbolized by <>) and the actee on the right (symbolized by $), hence the notation <>$

  9. (>$<) :: Contravariant f => (a -> b) -> f b -> f a

    mcmc Mcmc.Monitor.Parameter

    This is an infix alias for contramap.

  10. (>$<) :: Contravariant f => (a -> b) -> f b -> f a

    mcmc Mcmc.Monitor.ParameterBatch

    This is an infix alias for contramap.

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