How to iterate over the cases of an enum in Swift using CaseIterable

#iOS #swift #softwaredeveloper #iosdeveloper

In this video, I'll explain what the protocol CaseIterable is in Swift. CaseIterable is a protocol in Swift that makes it easy to work with enums that have a finite number of cases. By adopting the CaseIterable protocol, an enum gains a static allCases property that returns an array of all of the enum's cases. This can be useful for a variety of tasks, such as populating a user interface element with the enum's values or iterating over all of the enum's cases to perform a task.

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TRANSCRIPT
Have you ever heard of the protocol CaseIterable? When you use enums, this protocol can be very useful. Let's take the example of this simple enum. If we make this enum conform to the protocol CaseIterable, then the compiler will automatically generate a static property called all cases, which is an array that contains all the cases of this enum.
And that's a pretty cool addition which can be very useful typically to write tests that cover each possible case. That's all for this video, I hope you've enjoyed it. Remember to subscribe to the channel so you don't miss the next one. Thank you for watching, and see you next time!

[v_pradeilles]

Did you find this tip useful? Are you planning on using it in your apps? Let me know in the comments 🚀

[LucasAbijmil]

Great video!
This protocol is very useful but only for enums without associated values. If your enum contains at least one case with associated values, then, you will have to implement the allCases property by yourself (which makes sense)

[donathmm]

Post them to YouTube shorts rather than a normal yt video that's better