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  1. import Data.Typeable
  2. main = do
  3.    let x = 42
  4.    putStr(typeOf x)
  5.  
Compilation error #stdin compilation error #stdout 0s 0KB
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stdin
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Standard input is empty
compilation info 
[1 of 1] Compiling Main             ( prog.hs, prog.o )

prog.hs:4:10:
    Couldn't match expected type `String'
           against inferred type `TypeRep'
    In the first argument of `putStr', namely `(typeOf x)'
    In the expression: putStr (typeOf x)
    In the expression:
        do let x = 42
           putStr (typeOf x)
stdout
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Standard output is empty
https://ideone.com/1Hq8W
language:
Haskell (ghc 8.4.4)
created:
14 years ago
visibility:
public

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