Created
March 25, 2021 04:06
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| filtering :: | |
| Applicative f => | |
| (a -> f Bool) | |
| -> List a | |
| -> f (List a) | |
| filtering p = | |
| flip foldRight (pure Nil) $ \a fas -> | |
| (\b as -> bool as (a :. as) b) <$> p a <*> fas |
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