Refactoring puzzle to remove code duplication. #scala is the implementation language https://gist.github.com/tonymorris/5684419 … How would you solve it?
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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@dibblego Without scalaz? Write my own functor and monad typeclasses: https://gist.github.com/drexin/5684773Thanks. Twitter will use this to make your timeline better. UndoUndo
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@dibblego first: lift the apply method into the outer monad (abstract flat map/map combo) then abstract the fold operation into simple func?Thanks. Twitter will use this to make your timeline better. UndoUndo
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@dibblego Fucking brilliant teaching tool, framing discovery of useful type classes as "refactoring exercise." I'm stealing this technique. -
@dibblego BTW, if you haven't already planned, I suggest exercise 2 should build on 1 to derive Traversable... - Show replies
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@dibblego I know it was rhetorical, but I took a clumsy (half baked) stab. http://goo.gl/5F3UO -
@coltfred Not really rhetorical, socratic perhaps. Looks good!
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