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Is it better to do:
charToAction 'q' = Just $ WalkRight False
charToAction 'd' = Just $ WalkRight True
charToAction 'z' = Just Jump
charToAction _ = Nothing
or
charToAction x = case x of
'q' -> Just $ WalkRight False
'd' -> Just $ WalkRight True
'z' -> Just Jump
_ -> Nothing
?
There’s absolutely no functional difference whatsoever. It’s a matter of personal preference.