3 ms·
(Minor nitpick, your definition is `mappend` [1]. `mconcat` is `foldr mappend mempty` [2], i.e. concatenates a list of monoids.) [1] mappend :: Monoid m => m -
by quchen 13y ago
(Minor nitpick, your definition is `mappend` [1]. `mconcat` is `foldr mappend mempty` [2], i.e. concatenates a list of monoids.)
[1] mappend :: Monoid m => m -> m -> m
[2] mconcat :: Monoid m => [m] -> m