28 Interoperability
Because Swift is a very new language, it will be common in your Mac and iOS development career to work on an existing project implemented in Objective-C. After all, there are many years of Mac and iOS development behind us at this point. If you want to continue development using Swift on projects originally developed in Objective-C, you will need to learn how to make the two languages work together.
This chapter will show you exactly that. If you are not familiar with Objective-C, just follow along and type in the code. Not knowing Objective-C will not stop you from understanding the basic mechanics of interoperability. If you would like to learn more about Objective-C, check out the latest edition of Objective-C ...
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