Swift For Dummies

Chapter 17

Working with Enumerations to Consolidate Values

In This Chapter

Using raw values with enumerations

Combining enumerations with switches

Adding functions to enumerations

Swift takes structures and enumerations far beyond their roots in C and C-like languages. Structure, classes, and enumerations all can contain functions as well as data elements. They also can all adopt protocols.

This chapter shows you how to use Swift enumerations both in traditional ways and in ways that work alongside new Swift features such as embedded functions and raw values.

For more on structures, see Chapter 15 and Chapter 16.

Using Enumerations with Swift

In the world of Swift, you may want to rethink how you use enumerations.

Whereas in C, structures and enumerations are often used as simple types (that is, more or less as a way of saving keystrokes or organizing the code), structures, enumerations, and classes in Swift are all object-oriented first-class types. Accordingly, then, in the world of Swift, it is common to refer to instances of structures and enumerations, as well as instances ...