GroupBy: RxJS' Secret Weapon

First Published: September 04, 2019
Last Updated: November 30, 2020

Thanks for joining Mike Ryan and I for GroupBy: RxJS' Secret Weapon! We hope you learned a lot about the groupBy operator, as well as when to use exhaustMap, switchMap, and concatMap!

Here's the video from RxJS Live 2019:

Here are the slides:

And here is the sample code:

There's a branch for mergeMap, concatMap, and switchMap by themselves, as well as one for using groupBy and another to demonstrate how to extract a custom operator.

Follow us on Twitter:

Practical, actionable ways to improve each week.

Join over 1554 other devs and dev advocates on the Developer Microskills newsletter. Each week, I send out a practical, actionable way to grow in your career. No BS, no hand-waving, but with some fun thrown in for good measure. Sign up and I'll send you the Tiny Experiments framework and worksheet. It's a simple process to help you finish what you start.

Sam Julien © 2015 - Present