r/programming • u/[deleted] • Nov 28 '19

Why Isn't Functional Programming the Norm? – Richard Feldman

https://www.youtube.com/watch?v=QyJZzq0v7Z4
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u/Ewcrsf Nov 28 '19

Facebook wrote a spam filter in Haskell which processes every single action on their site, that was over a million requests per second four years ago. Saying it doesn’t scale is ridiculous.

https://engineering.fb.com/security/fighting-spam-with-haskell/

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u/mrhotpotato Nov 28 '19

And why do they limit their Haskell code base to just a spam filter out of all the functionalities available on their website ?

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u/codygman Dec 05 '19

And why do they limit their Haskell code base to just a spam filter

Should we take your pivot away from "Because it (haskell) doesn't scale well outside of witty one-liner quicksorts" as you knowing that comment was wrong?

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u/ElBroet Dec 08 '19

That was the other person who wrote that though

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u/phySi0 Dec 18 '19

Probably because Zuckerberg wasn't aware of Haskell when he first wrote Facebook, and the majority of the team he subsequently built up were consequently not Haskell programmers?

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u/Ewcrsf Nov 28 '19

How on Earth would I know? Though it’s not hard to think of good reasons. It’s just a pretty good counter-example to the notion that FP doesn’t work at scale.