Re: [Haskell-beginners] How can I print the outcome with using main.
testParse returns an IO action. show expects an argument that is in Show. You will need to bind the result of testParse to a name and ensure that LogMessage is in Show.
Has the course covered `do` notation?
On Tue, Feb 24, 2015 at 9:16 AM, Roelof Wobben
Joel Williamson schreef op 24-2-2015 om 15:10:
testParse returns an IO action. show expects an argument that is in Show. You will need to bind the result of testParse to a name and ensure that LogMessage is in Show.
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oke, and how do I do this ?
Roelof
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