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1. liftShowList2 :: Show2 f => (Int -> a -> ShowS) -> ([a] -> ShowS) -> (Int -> b -> ShowS) -> ([b] -> ShowS) -> [f a b] -> ShowS

   base	Data.Functor.Classes

   showList function for an application of the type constructor based on showsPrec and showList functions for the argument types. The default implementation using standard list syntax is correct for most types.

2. liftShowsPrec :: Show1 f => (Int -> a -> ShowS) -> ([a] -> ShowS) -> Int -> f a -> ShowS

   base	Data.Functor.Classes

   showsPrec function for an application of the type constructor based on showsPrec and showList functions for the argument type.

3. liftShowsPrec2 :: Show2 f => (Int -> a -> ShowS) -> ([a] -> ShowS) -> (Int -> b -> ShowS) -> ([b] -> ShowS) -> Int -> f a b -> ShowS

   base	Data.Functor.Classes

   showsPrec function for an application of the type constructor based on showsPrec and showList functions for the argument types.

4. traceShow :: Show a => a -> b -> b

   base	Debug.Trace

   Like trace, but uses show on the argument to convert it to a String. This makes it convenient for printing the values of interesting variables or expressions inside a function. For example, here we print the values of the variables x and y:

   >>> let f x y = traceShow ("x", x, "y", y) (x + y) in f (1+2) 5
   ("x",3,"y",5)
   8
   

   Note in this example we also create simple labels just by including some strings.

5. traceShowId :: Show a => a -> a

   base	Debug.Trace

   Like traceShow but returns the shown value instead of a third value.

   >>> traceShowId (1+2+3, "hello" ++ "world")
   (6,"helloworld")
   (6,"helloworld")
   

6. traceShowM :: (Show a, Applicative f) => a -> f ()

   base	Debug.Trace

   Like traceM, but uses show on the argument to convert it to a String.

   >>> :{
   do
   x <- Just 3
   traceShowM x
   y <- pure 12
   traceShowM y
   pure (x*2 + y)
   :}
   3
   12
   Just 18
   

7. traceShowWith :: Show b => (a -> b) -> a -> a

   base	Debug.Trace

   Like traceWith, but uses show on the result of the function to convert it to a String.

   >>> traceShowWith length [1,2,3]
   3
   [1,2,3]
   

8. hShow :: Handle -> IO String

   base	System.IO

   hShow is in the IO monad, and gives more comprehensive output than the (pure) instance of Show for Handle.

9. hShow :: Handle -> IO String

   base	GHC.IO.Handle

   hShow is in the IO monad, and gives more comprehensive output than the (pure) instance of Show for Handle.

10. coarbitraryShow :: Show a => a -> Gen b -> Gen b

    QuickCheck	Test.QuickCheck

    coarbitrary helper for lazy people :-).

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