In this chapter, we covered a lot of different topics. These topics ranged from variables and constants to data types and operators. The items in this chapter will be the foundation of every application that you write; therefore, it is important to understand the concepts discussed here.

In the next chapter, we will look at how we can use the Swift collection types to store related data. These collection types are the Dictionary and Array types. We will also look at how we can use the Cocoa and Foundation data types in Swift.