Wearing the hair shirt Wearing the hair shirt - Microsoft Research
Wearing the hair shirt Wearing the hair shirt - Microsoft Research
Wearing the hair shirt Wearing the hair shirt - Microsoft Research
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Monadic I/O<br />
A value of type (IO t) is an “action”<br />
that, when performed, may do<br />
some input/output before<br />
delivering a result of type t.<br />
eg.<br />
getChar :: IO Char<br />
putChar :: Char -> IO ()