% Method Syntax
There is a new edition of the book and this is an old link.
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.
# 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: