Summary

In this chapter, we have learned about the basics of Combine: what a publisher is, what a subscriber is, why we need operators, which ones are more useful, and how all these elements chain together to help us.

We have built two different apps to demonstrate how Combine can help in our apps, from processing user interface events, decoding, and applying business rules, to creating error-proof streams and methods to recover from operations that fail. Combine provides us with a lot of built-in functionalities that will make our code easy to read and maintain.

In the next chapter, we are going to learn about one of the new features of iOS 14: App Clips.