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原文:no parse exception

I am trying to cach exception caused by read function: run :: CurrentData -> IO () run current = do { x <- (getCommandFromUser) `E.catch` handler; updated <- executeCommand x current;...

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原文:newbie on sort.words

This expression: sort words "fire water earth fire" --- gives this error --- Couldn t match expected type `[a] against inferred type `GHC.Base.String -> [GHC.Base.String] Could someone ...

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