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Why Is Combine Important in SwiftUI? As mentioned already, the Combine framework makes the process of making your UI reactive much easier. But that's not all. One of the main advantages the Combine framework offers is streamlining asynchronous processes and simplifying the structure and maintainability of code.

SwiftUI is an alternative to classic UIKit that allows developers to build their UI cross-platform using a declarative approach. If you have already seen Combine code, you may notice that both Combine and SwiftUI share a declarative programming approach? but that's not what makes them so? combinable!

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Combine is sometimes referred to as a functional reactive programming framework, but that isn't correct. It is more accurate to describe Combine as a reactive programming framework that uses functional programming techniques.

Introduction to Combine framework in Swift It allows us to process values over time using declarative APIs that can work as an alternative to the delegate pattern or in-blocks callbacks. Although, we can use Combine together with other patterns or architectures to solve specific tasks in our projects.

Combine is a powerful framework for iOS developers, enabling us to leverage the benefits of reactive programming to create declarative code that makes more easy to read and maintain.

Overview. The Combine framework provides a declarative Swift API for processing values over time. These values can represent many kinds of asynchronous events. Combine declares publishers to expose values that can change over time, and subscribers to receive those values from the publishers.