In Kotlin, an enum (short for enumerator) is a special kind of predefined Kotlin data type used to store and represent a fixed set of named constant values, often simply referred to as constants. Each constant is an object, meaning they can have properties and methods, these are enums and are useful for representing elements that are fixed (for example days of the week) and don’t change.

Our users surprise us every day. They constantly find new and exciting ways to use our apps, and create all kinds of edge cases with their behaviour. As developers, it’s impossible to predict every single edge case. What we can do, however, is train our apps to react, and this is the core of Reactive programming, a development paradigm which has rapidly gained popularity for Swift programmers in recent years.

Universal Links are an iOS feature allowing seamless integration between web content and native iOS apps. With iOS Universal Links we can intelligently configure a specific web URL, associating it with our iOS app so it will open directly when the URL is clicked.

In Swift, an enum (short for enumeration) is a powerful feature that allows us to define a data type with a fixed set of related values so we can work with those values in a type-safe way within our code. In this article we’ll be taking a closer look at Swift enums and their applications in Swift, as well as providing some real-world examples of how we could deploy them in our builds.