Summary
In this first hour, you learned a brief background on the Swift programming language and what it is built upon. We walked through opening the Xcode environment for the first time and explored some of Xcode’s layout, as well as the Swift REPL. You also created your first lines of Swift code and saw how Xcode and the REPL give you instant feedback on what your code is doing.
In the next hour, we cover the difference between variables and constants, and explore some of Swift’s native data types, such as String, Int, Bool, Character, Double, and Float.