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December 17, 2015 04:18
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| import Data.Foldable | |
| import Data.Monoid | |
| pipeline :: [a -> a] -> a -> a | |
| pipeline = appEndo . getDual . foldMap (Dual . Endo) | |
| main = print $ pipeline [(+1), (*10)] 100 |
now do pipelineK :: Monad m => [a -> m a] -> a -> m a
...
now do pipelineAllTheThings :: (Foldable f, Monad m) => f (a -> m a) -> a -> m a
@mergeconflict that is actually a great way of showing that a monad is a monoid in the category of endofunctors. Thanks.
Yup!
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Output is of course 1010 (not 1001).