Mastering Swift 5.3 - Sixth Edition

5

Using Swift Collections

Once I got past the basic Hello, World! beginner applications, I quickly began to realize the shortcomings of variables, especially with the Mad Libs-style applications that I was starting to write. These applications requested that the user enter numerous strings, which resulted in the creation of separate variables for each input field that the user entered.

Having all these separate variables quickly became cumbersome. I remember talking to a friend about this, and he asked me why I was not using arrays. At that time, I was not familiar with arrays, so I asked him to show me what they were. Even though he had a TI-99/4A and I had a Commodore Vic-20, the concept of arrays was the same. Even today, the arrays found ...