Monad - FunFunFunction #21

Mattias Petter Johansson explains monads in JavaScript by comparing them to functors and demonstrating how they implement the flatMap method.

💖 Support the show by becoming a Patreon patreon.com/funfunfunction Monads is a type of Functor, so you need to know what a Functor is in order for this episode to make sense. Thankfully, there there is a FunFunFunction episode for that, and you can watch it here: So, what is a monad? Remember that a Functor is an object that implements *map*? Well, a monad is a more powerful functor that also implements *flatMap*. Code from the episode gist.github.com/mpj/ca167aad371c67372f3b Mad props to @drboolean for helping me to understand Monads. Besides following him on Twitter, you should watch his awesome “Classroom Coding with Prof. Frisby Pt1” youtube.com/watch?v=h_tkIpwbsxY&list=PLK_hdtAJ4KqX0JOs_KMAmU… Quick intro to Fetch API sitepoint.com/introduction-to-the-fetch-api/ BaconJS baconjs.github.io/ Google Translate API cloud.google.com/translate/v2/getting_started 💛 Follow on Twitch and support by becoming a Subscriber We record the show live Mondays 7 AM PT twitch.tv/funfunfunction 💛 Fun Fun Forum Private discussion forum with other viewers in between shows. funfunforum.com. Available to patron members, become one at patreon.com/funfunfunction 💛 mpj on Twitter twitter.com/mpjme 💛 CircleCI (Show sponsor) Robust and sleek Docker-based Continuous Integration as a service. I used CircleCI prior to them becoming a sponsor and I love that their free tier is powerful enough for small personal projects, even if they are private. Use this link when you sign up to let them know you came from here: circleci.funfunfunction.com 💛 Quokka (Show sponsor) Wonder how MPJ evaluates JavaScript inline his editor. Quokka is the answer - use this link when you buy to let them know you came from here: quokka.funfunfunction.com 💛 FUN FUN FUNCTION Since 2015, Fun Fun Function (FFF) is one of the longest running weekly YouTube shows on programming 🏅 thanks to its consistency and quality reaching 200,000+ developers. 🤦‍♂️ The Failing Together concept is what makes FFF unique. Most coding content out there focus on step-by-step tutorials. We think tutorials are too far removed from what everyday development is like. Instead, FFF has created a completely new learning environment where we grow from failure, by solving problems while intensively interacting with a live audience. Tutorials try to solve a problem. Failing Together makes you grow as a developer and coworker. 📹 Each show is recorded live on Twitch in a 2-hour livestream on Mondays. The host, assisted by the audience, is tasked to complete a programming challenge by an expert guest. Like in the real world, we often fail, and learn from it. This, of course, reflects what the audience identifies with, and is one of the most praised aspects of the show. ⏯ On Fridays, an edited version of the show is adapted for and published on YouTube. Content Topics revolve around: Jav