| % Method Syntax |
| |
| <small>There is a new edition of the book and this is an old link.</small> |
| |
| > Methods are different from functions in that they’re defined within the context of a struct, and their first parameter is always `self`, which represents the instance of the struct the method is being called on. |
| |
| ```rust |
| # struct Rectangle { |
| # width: u32, |
| # height: u32, |
| # } |
| |
| impl Rectangle { |
| fn area(&self) -> u32 { |
| self.width * self.height |
| } |
| } |
| ``` |
| |
| --- |
| |
| Here are the relevant sections in the new and old books: |
| |
| * **[in the current edition: Ch 5.03 — Method Syntax][2]** |
| * <small>[In the first edition: Ch 3.16 — Method Syntax][1]</small> |
| |
| |
| [1]: https://doc.rust-lang.org/1.30.0/book/first-edition/method-syntax.html |
| [2]: ch05-03-method-syntax.html |
