In the code here User struct definition owns all its fields/members. If we specified this instead -
struct User {
username: &str,
email: &str,
active: bool,
signin_count: u64,
}
fn main() {
let user = User{
email: "[email protected]",
username: "someone",
active: true,
signin_count: 3,
};
}
The above won't work because it is missing lifetime parameter. Check Chapter 10 for lifetimes.
struct User<'a> {
username: &'a str,
email: &'a 'str,
active: bool,
signin_count: u64,
}