[Haskell-cafe] Re: Returning a list element?

Robert Dockins writes:

FYI, putStrLn will automatically insert a newline for you, and the final 'return ()' is unnecessary. My favorite idiom for this kind of thing is:

mainMenu = putStr $ unlines [ "line 1" , "line 2" , "line 3" ]

Or how about mainMenu = sequence_ $ map putStrLn ["line1", "line2", "line3"]