Chapter 1. Swift Basics
Swift is a relatively new programming language designed by Apple Inc., and was initially made available to Apple developers in 2014—primarily intended as a replacement for the aging Objective-C language that was the foundation of OS X and iOS software development at the time.
Unlike many object-oriented languages, which are based on older procedural languages—for example, C++ and Objective-C are based on C—Swift was designed from the ground up as a new, modern, object-oriented language that makes programming faster and easier, and helps developers produce expressive code that's less prone to errors than many languages.
While not based on an older language, Swift, in the words of its chief architect, Chris Lattner, "was inspired ...
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