Over the past 17 years, the programming world focused on the development paradigm of object-oriented programming (OOP). Most modern development environments and languages implement OOP. Put simply, OOP forms the basis of everything you develop today.
You may be asking yourself why we waited until Chapter 5 to present OOP using Swift if it is the primary development style of today. The simple answer is that it is not an easy concept for new developers. This ...
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