31 Jan
2013
31 Jan
'13
1:17 p.m.
Remember that 'Either e' is also a monad. =) I remember - this makes the change from Maybe to Either very easy :) Still I found that adding error message to every combinator and function ads a lot of boilerplate. Also, I experince
Dnia czwartek, 31 stycznia 2013, Ertugrul Söylemez napisał: problem with granularity of the messages, e.g. a message like "digit expected" is too low-level not helpful without telling user that the problem was in the incorect date format. Janek