Different ways to observe properties in Swift
08 August 2021
After I wrote and released Foil, my library for implementing a property wrapper for
UserDefaults, one of the criticisms on Twitter was that a mechanism for observing such properties should have been included. I disagreed. In the post I argued that this was easy enough for clients to handle on their own, but more importantly that there are too many options for how to do this and I didn’t think Foil should impose any one of them on clients.