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Mastering Swift 4 - Fourth Edition by Jon Hoffman

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Using Mix and Match

When Apple first introduced Swift at WWDC 2014, my first thought was how much work it would be for developers to rewrite their apps in Swift. Somewhere in the Swift presentation, Apple spoke about mix and match, which enables Swift and Objective-C to interact within the same project. Mix and match sure sounded like the ideal solution because developers could rewrite sections of their code in Swift as they needed to do updates, instead of having to rewrite their whole application. My big question was around the functionality of mix and match, and how it would work in the real world, because I definitely had my doubts. I must confess that I was very surprised. Not only did mix and match work as advertised, it was also very ...

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