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  1. (>$$<) :: [Expr] -> [Expr] -> [Expr]

    code-conjure Conjure.Expr

    Lists valid applications between lists of Exprs

    > [notE, plus] >$$< [false, true, zero]
    [not False :: Bool,not True :: Bool,(0 +) :: Int -> Int]
    

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

    configuration-tools Configuration.Utils.CommandLine

    Replace all locations in the input with the same value. The default definition is fmap . const, but this may be overridden with a more efficient version.

    Examples

    Perform a computation with Maybe and replace the result with a constant value if it is Just:
    >>> 'a' <$ Just 2
    Just 'a'
    
    >>> 'a' <$ Nothing
    Nothing
    

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

    configuration-tools Configuration.Utils.CommandLine

    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)
    

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

    configuration-tools Configuration.Utils.Operators

    Applicative functional composition between a pure function and an applicative function.

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

    configuration-tools Configuration.Utils.Operators

    Applicative functional composition between a pure function and an applicative function with its arguments flipped.

  6. (<$) :: forall a (m :: Type -> Type) (n :: Type -> Type) s . (Eq a, Show a, Functor m, AlternativeFail n) => a -> Format m n s () -> Format m n s a

    construct Construct

    Same as the usual <$ except a Format is no Functor.

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

    control-monad-free Control.Monad.Free

    Replace all locations in the input with the same value. The default definition is fmap . const, but this may be overridden with a more efficient version.

    Examples

    Perform a computation with Maybe and replace the result with a constant value if it is Just:
    >>> 'a' <$ Just 2
    Just 'a'
    
    >>> 'a' <$ Nothing
    Nothing
    

  8. (<$!>) :: Monad m => (a -> b) -> m a -> m b

    control-monad-free Control.Monad.Free

    Strict version of <$>.

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

    dimensional Numeric.Units.Dimensional.Prelude

    Replace all locations in the input with the same value. The default definition is fmap . const, but this may be overridden with a more efficient version.

    Examples

    Perform a computation with Maybe and replace the result with a constant value if it is Just:
    >>> 'a' <$ Just 2
    Just 'a'
    
    >>> 'a' <$ Nothing
    Nothing
    

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

    dimensional Numeric.Units.Dimensional.Prelude

    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)
    

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