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Within LTS Haskell 24.18 (ghc-9.10.3)

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1. id :: a -> a

   base	Prelude

   Identity function.

   id x = x
   

   This function might seem useless at first glance, but it can be very useful in a higher order context.

   Examples

   >>> length $ filter id [True, True, False, True]
   3
   

   >>> Just (Just 3) >>= id
   Just 3
   

   >>> foldr id 0 [(^3), (*5), (+2)]
   1000
   

2. id :: a -> a

   base	Data.Function

   Identity function.

   id x = x
   

   This function might seem useless at first glance, but it can be very useful in a higher order context.

   Examples

   >>> length $ filter id [True, True, False, True]
   3
   

   >>> Just (Just 3) >>= id
   Just 3
   

   >>> foldr id 0 [(^3), (*5), (+2)]
   1000
   

3. id :: forall (a :: k) . Category cat => cat a a

   base	Control.Category

   the identity morphism

4. id :: a -> a

   base	GHC.Base

   Identity function.

   id x = x
   

   This function might seem useless at first glance, but it can be very useful in a higher order context.

   Examples

   >>> length $ filter id [True, True, False, True]
   3
   

   >>> Just (Just 3) >>= id
   Just 3
   

   >>> foldr id 0 [(^3), (*5), (+2)]
   1000
   

5. id :: a -> a

   hedgehog	Hedgehog.Internal.Prelude

   Identity function.

   id x = x
   

   This function might seem useless at first glance, but it can be very useful in a higher order context.

   Examples

   >>> length $ filter id [True, True, False, True]
   3
   

   >>> Just (Just 3) >>= id
   Just 3
   

   >>> foldr id 0 [(^3), (*5), (+2)]
   1000
   

6. id :: AttributeValue -> Attribute

   blaze-html	Text.Blaze.Html4.FrameSet.Attributes

   Combinator for the id attribute. Example:

   div ! id "bar" $ "Hello."
   

   Result:

   <div id="bar">Hello.</div>
   

7. id :: AttributeValue -> Attribute

   blaze-html	Text.Blaze.Html4.Strict.Attributes

   Combinator for the id attribute. Example:

   div ! id "bar" $ "Hello."
   

   Result:

   <div id="bar">Hello.</div>
   

8. id :: AttributeValue -> Attribute

   blaze-html	Text.Blaze.Html4.Transitional.Attributes

   Combinator for the id attribute. Example:

   div ! id "bar" $ "Hello."
   

   Result:

   <div id="bar">Hello.</div>
   

9. id :: AttributeValue -> Attribute

   blaze-html	Text.Blaze.Html5.Attributes

   Combinator for the id attribute. Example:

   div ! id "bar" $ "Hello."
   

   Result:

   <div id="bar">Hello.</div>
   

10. id :: AttributeValue -> Attribute

    blaze-html	Text.Blaze.XHtml1.FrameSet.Attributes

    Combinator for the id attribute. Example:

    div ! id "bar" $ "Hello."
    

    Result:

    <div id="bar">Hello.</div>
    

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