Haskell: can't use “map putStrLn”?

Question

I have a list of strings, and tried this:

ls = [ \"banana\", \"mango\", \"orange\" ]

main = do
       map PutStrLn list_of_strings

That di

Answer 1

Ayman's answer makes most sense for this situation. In general, if you have [m ()] and you want m (), then use sequence_, where m can be any monad including IO.