Swift 5 for Absolute Beginners: Learn to Develop Apps for iOS

© Stefan Kaczmarek, Brad Lees, Gary Bennett 2019

Stefan Kaczmarek, Brad Lees and Gary BennettSwift 5 for Absolute Beginnershttps://doi.org/10.1007/978-1-4842-4868-3_9

9. Comparing Data

Stefan Kaczmarek¹ , Brad Lees¹ and Gary Bennett²

(1)

Phoenix, AZ, USA

(2)

Scottsdale, AZ, USA

 

In this chapter, we will discuss one of the most basic and frequent operations you will perform as you program: comparing data. In the bookstore example, you may need to compare book titles if your clients are looking for a specific book. You may also need to compare authors if your clients are interested in purchasing books by a specific author. Comparing data is a common task performed by developers. Many of the loops you learned about in Chapter 8 will require you to compare ...