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  1. (<$>) :: 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)
    

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

    invertible Control.Invertible.Functor

    An infix synnonym for fmap.

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

    invertible Data.Invertible.PartialIsomorphism

    Apply a bijection over a IsoFunctor using <$>.

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

    invertible Data.Invertible.Prelude

    An infix synnonym for fmap.

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

    opt-env-conf OptEnvConf

    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)
    

  6. (<$>) :: IsoFunctor f => Iso alpha beta -> f alpha -> f beta

    partial-isomorphisms Control.Isomorphism.Partial.Prim

    No documentation available.

  7. (<$>) :: Doc -> Doc -> Doc

    prettyprinter-compat-ansi-wl-pprint Text.PrettyPrint.ANSI.Leijen

    No documentation available.

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

    threepenny-gui Graphics.UI.Threepenny.Core

    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)
    

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

    classy-prelude-yesod ClassyPrelude.Yesod

    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)
    

  10. (<$>) :: (Functor f r (->), Object r a, Object r b) => r a b -> f a -> f b

    constrained-categories Control.Category.Constrained.Prelude

    No documentation available.

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