How to use Property observers in Swift

Gurjit Singh
2 min readMar 30, 2023
Photo by Cookie the Pom on Unsplash

It’s a common pattern or technique in various programming languages when we want to perform some action when a value is changed. Property observers are used in Swift when we want to perform an action when the value of a property changes. Even if the new value is similar to the old value, property observers will respond every time they are called.

Property observers can be defined in

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Gurjit Singh

I’m Computer Science graduate and an iOS Engineer who writes about Swift and iOS development. Follow me on twitter @gurjitpt and for more articles www.gurjit.co