Swift Extension to existing classes/structure is a way to fill in missing gaps in their function set.

Swift Extension to existing classes/structure is a way to fill in missing gaps in their function set.

Thanks to Normi for his personal list of useful extension to Swift.

https://levelup.gitconnected.com/swift-useful-extensions-part-1-e69d512854e8

His follow up article gives some extensions specific to UIKit: https://medium.com/gitconnected/swift-useful-extensions-part-2-c9c7836e64ee