Created
November 14, 2016 20:11
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Monoidal Fizzbuzz in Purescript
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module Main where | |
import Control.Monad.Eff.Console (log) | |
import Data.List.Lazy (take, zipWith, fromFoldable, cycle, iterate, foldr) | |
import Data.Monoid (mempty, (<>)) | |
import Data.Maybe (Maybe(..), fromMaybe) | |
import Prelude ( show, map, ($), (+)) | |
main = do | |
log $ join $ take 100 $ fizzbuzz | |
where | |
join = foldr (\x y -> x <> " " <> y) "" | |
nums = map show $ iterate (\x -> x+1) 1 | |
fizzes = cycle $ fromFoldable [mempty, mempty, Just "fizz" ] | |
buzzes = cycle $ fromFoldable [mempty, mempty, mempty, mempty, Just "buzz" ] | |
pattern = zipWith (<>) fizzes buzzes | |
fizzbuzz = zipWith fromMaybe nums pattern |
Cool, this inspired me to do an extensible version: https://gist.github.com/mathiasverraes/763ebf4a7c6ed5e364840e021af5e431 (haskell)
Thank you both! @mathiasverraes: I added your solution to the references section of https://dierk.gitbooks.io/fregegoodness/content/src/docs/asciidoc/fizzbuzz_monoid.html
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Awesome!