Strings

Numbers are essential in programming, but they aren’t the only type of data you need to work with in your apps. Text is also an extremely common data type, such as people’s names, their addresses, or even the words of a book. All of these are examples of text that an app might need to handle.

Most computer programming languages store text in a data type called a string. This chapter introduces you to strings, first by giving you background on the concept of strings and then by showing you how to use them in Swift.