u/Mrbouttein r/functionalprogramming • Recommends
Intro to functors, bifunctors, and profunctors
0:00 / 0:00
- Recommended by 1 person: 1 in engineering communities.
- Presented by Victor Boutté
- Linked in the descriptionmonsieurBoutte/fp-101-seriesgcanti/fp-ts
Intermediate. Assumes working knowledge.
2.6K views5 years ago1 recommendation
Programming languagesComputer scienceTypeScriptFunctional programming
Victor Boutté explains the concepts of Functor, Bifunctor, and Profunctor in category theory using TypeScript and the fp-ts library.
In this video we cover the concept of Functors from Category Theory as it relates to functional programming. Specifically we take a look at fp-ts implementations of Functor, Bifunctor, and Profunctor. We also spend a little time covering what Contramap is and how it's used within Profunctor. Intro and value add: Slides: Functor Example: Bifunctor Example: Contramap Example: Profunctor Example: Wrap up: git repository: github.com/monsieurBoutte/fp-101-series files from repo, that are explored in this video: github.com/monsieurBoutte/fp-101-series/tree/master/src/5th-… codesandbox for this video: codesandbox.io/s/mystifying-paper-9iibo?file=/src/Profunctor… other resources: Tom Harding series tomharding.me/2017/06/26/fantas-eel-and-specification-18/ Option type declartion github.com/gcanti/fp-ts/blob/master/src/Option.ts#L72 ReadonlyArray sort implementation github.com/gcanti/fp-ts/blob/master/src/ReadonlyArray.ts#L80… Javascript Array.slice developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Gl… Javascript Array.sort developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Gl… Reader promap implementation github.com/gcanti/fp-ts/blob/master/src/Reader.ts#L153 follow for more fp 101 updates: twitter.com/monsieurBoutte