Get information about a functional application of an application
In GHCI
you can get information about all kinds of things like
Prelude> :i map
map :: (a -> b) -> [a] -> [b] -- Defined in `GHC.Base'
Prelude> :i (+)
class Num a where
(+) :: a -> a -> a
...
-- Defined in `GHC.Num'
infixl 6 +
Prelude> :i :
data [] a = ... | a : [a] -- Defined in `GHC.Types'
infixr 5 :
I read something like "functional application has the highest priority" which means
f "hello" * g 'w'
equivalent to
(f "hello") * (g 'w')
Can I get information about a function app? Is this the actual operator?
Does not work
Prelude> :i ( )
<interactive>:1:2: error:
parse error (possibly incorrect indentation or mismatched brackets)
Prelude>
+3
source to share
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