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Within LTS Haskell 24.3 (ghc-9.10.2)

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Exact lookup

1. first :: Doc a -> Doc a -> Doc a

   pretty	Text.PrettyPrint.Annotated.HughesPJ

   first returns its first argument if it is non-empty, otherwise its second.

2. first :: Doc -> Doc -> Doc

   pretty	Text.PrettyPrint.HughesPJ

   first returns its first argument if it is non-empty, otherwise its second.

3. first :: Bifunctor p => (a -> b) -> p a c -> p b c

   semigroupoids	Data.Bifunctor.Apply

   Map covariantly over the first argument.

   first f ≡ bimap f id
   

   Examples

   >>> first toUpper ('j', 3)
   ('J',3)
   

   >>> first toUpper (Left 'j')
   Left 'J'
   

4. first :: (a -> a') -> (a, b) -> (a', b)

   extra	Data.Tuple.Extra

   Update the first component of a pair.

   first succ (1,"test") == (2,"test")
   

5. first :: (a -> a') -> (a, b) -> (a', b)

   extra	Extra

   Update the first component of a pair.

   first succ (1,"test") == (2,"test")
   

6. first :: Bifunctor p => (a -> b) -> p i a c -> p i b c

   optics-core	Optics.Internal.Bi

   No documentation available.

7. first :: T (a, b) a

   data-accessor	Data.Accessor.Tuple

   Access to the first value of a pair.

8. first :: Bifunctor p => (a -> b) -> p a c -> p b c

   rio	RIO.Prelude

   Map covariantly over the first argument.

   first f ≡ bimap f id
   

   Examples

   >>> first toUpper ('j', 3)
   ('J',3)
   

   >>> first toUpper (Left 'j')
   Left 'J'
   

9. first :: Arrow a => a b c -> a (b, d) (c, d)

   Cabal-syntax	Distribution.Compat.Prelude

   No documentation available.

10. first :: Bifunctor p => (a -> b) -> p a c -> p b c

    streaming	Streaming

    Map covariantly over the first argument.

    first f ≡ bimap f id
    

    Examples

    >>> first toUpper ('j', 3)
    ('J',3)
    

    >>> first toUpper (Left 'j')
    Left 'J'
    

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