Reactive Programming in iOS with Combine

Congratulations! You’ve made it through a long list of Combine operators. Let’s recap what we covered in this part of the course: timing operators help you control the timing of when values are sent downstream. Scheduling operators let you schedule which thread or queue those values are delivered. Finally, sequence operators work on collections of values, and many of them work just like their counterparts in the Swift Standard Library.

With the conclusion of this part of the course, you’ve done it, you’ve reached the end! Let’s recap what you learned in the course.

In Part 1, you learned about the Combine pipeline, and in particular, the endpoints. Publishers emit events that can include values of interest. Subscribers attach, or subscribe, to a publisher, and at that point it can receive the values and events the publisher emits.

In Parts 2-4, you learned the many, many, types of items that can sit between Publishers and Subscribers - Operators. Acting as both Publishers and Subscribers, Operators can manipulate the data as it gets passed through the pipeline. There’s a lot more about Combine that isn’t in this course. Using Combine with networking, advanced backpressure management, Futures, and custom Publishers are all topics you can learn about with this foundation in hand.

Where can you go to get that information? Our Combine: Asynchronous Programming with Swift book is a great place to go to learn about the more advanced topics. Our “Combine in the raywenderlich.com App” video course is a great way to see Combine in a real world app. Other resources include our SwiftUI video course, as well as our Testing in iOS video course.

I hope you had a great time learning about reactive programming in iOS with Combine, I’ve had a pleasure teaching you. Thanks, and see you around.