Reactive

A common requirement for many apps is to cancel a running network request that has not yet completed, if a new request to the same resource is made. This is extremely simple using the power of reactive programming.

Combine and SwiftUI work beautifully together. But how can Combine be used to work with reactive code in our UIKit projects?

RxCocoa provides a useful stream for cell item accessory button taps. But how do you generate your own reactive streams from buttons in custom cells? And how should these streams be connected to your view model logic?

Getting to grips with RxSwift is not easy. There is a significant learning curve as you adjust your imperative mindset to a functional reactive one, with many new concepts to learn. So how do you get started?

Does this sound like you...you’re a good developer with years of experience building and shipping apps to the App Store. Somehow though, you never quite managed to get onboard the functional reactive programming train in the back half of the “twenty-tens” (2015 - 2019), and now we have Combine. Should you learn RxSwift today?

In reactive programming, it's very common to require a stream of values in the form of an array. A typical use case for this is to populate a list with data. However, the array that is published from the source may need to be transformed to an array of values of a different type for display.