src/doc/book/src/ch06-00-enums.md

   1 # Enums and Pattern Matching
   2
   3 In this chapter, we’ll look at *enumerations*, also referred to as *enums*.
   4 Enums allow you to define a type by enumerating its possible *variants*. First
   5 we’ll define and use an enum to show how an enum can encode meaning along with
   6 data. Next, we’ll explore a particularly useful enum, called `Option`, which
   7 expresses that a value can be either something or nothing. Then we’ll look at
   8 how pattern matching in the `match` expression makes it easy to run different
   9 code for different values of an enum. Finally, we’ll cover how the `if let`
  10 construct is another convenient and concise idiom available to handle enums in
  11 your code.