Feb 3, 2022 · 77 I'm bridging the sync/async worlds in Swift and doing incremental adoption of async/await. I'm trying to invoke an async function that returns a value from a non async …

Jul 3, 2014 · I like the Swift 3 solution, but it does not work for me in Swift 4: "Cannot use mutating member on immutable value: 'urlQueryAllowed' is a get-only property".

One of the Swift Core Team members (I don't remember who that was exactly) said that Swift only has "optional protocol requirements" because it is needed for Obj-C interop. Also, the …

Jun 3, 2019 · Swift 5.1 does not appear to have some as a keyword, and I don't see what else the word some could be doing there, since it goes where the type usually goes. Is there a new, …

Sep 20, 2014 · Back in Swift 1.x, print did not add newline characters at the end of the printed string, whereas println did. But nowadays, print always adds the newline character at the end …

I have an IOS app with an Azure back-end, and would like to log certain events, like logins and which versions of the app users are running. How can I return the version and build number …

The Swift Docs on Control Flow explain the idea behind that: Using a guard statement for requirements improves the readability of your code, compared to doing the same check with …

What is the purpose of writing comments in Swift as: // MARK: This is a comment When you can also do: // This is a comment What does the // MARK achieve?

This does not only apply to function arguments where optional could be misleading, but also everywhere in Swift where you need to declare the meta type (struct and class) of a variable …

The swift string class does not provide the ability to get a character at a specific index because of its native support for UTF characters. The variable length of a UTF character in memory …