| % Patterns |
| |
| <small>There is a new edition of the book and this is an old link.</small> |
| |
| > Patterns are a special syntax within Rust for matching against the structure of our types, complex or simple. |
| > A pattern is made up of some combination of literals; destructured arrays, enums, structs, or tuples; variables, wildcards, and placeholders. |
| > These pieces describe the “shape” of the data we’re working with. |
| |
| ```rust |
| let x = Some(5); |
| let y = 10; |
| |
| match x { |
| Some(50) => println!("Got 50"), |
| Some(y) => println!("Matched, y = {:?}", y), |
| _ => println!("Default case, x = {:?}", x), |
| } |
| ``` |
| |
| --- |
| |
| You can find the latest version of this information |
| [here](ch06-02-match.html). |
