Technical requirements
The Xcode playground for this chapter is in the Chapter03 folder of the code bundle for this book, which can be downloaded here:
Check out the following video to see the code in action:
https://bit.ly/3yYYVzT
Create a new playground and name it ConditionalsAndOptionals. You can type in and run all the code in this chapter as you go along. You’ll start by learning about conditionals.