Hi Shishir, If you wrap multiline code in between Prelude> :{ Prelude| let main1 = do Prelude| a <- getLine Prelude| return a Prelude| :} Prelude> main1 hello "hello" It will work. On Fri, Aug 7, 2015 at 8:45 PM, Shishir Srivastava < shishir.srivastava@gmail.com> wrote:
Hi,
I am trying to run this basic multiline code in GHCi. I am not sure if this is even possible without writing it in a file and compiling it in a traditional way.
------- Prelude> :set +m Prelude> let main1 = do Prelude| a <- readLn Prelude| return a Prelude| Prelude> Prelude> main1
<interactive>:75:1: No instance for (Show (IO b0)) arising from a use of `print' In the first argument of `print', namely `it' In a stmt of an interactive GHCi command: print it -------
Could someone please confirm if the function can be defined and called like this in GHCi or point to where am going wrong.
Thanks, Shishir Srivastava
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