Structs

Structs are similar to tuples — both hold multiple related values. Example:

struct User { 
  active: bool, 
  username: String, 
  email: String, 
  sign_in_count: u64, }

Method Syntax §

struct Rectangle {
  width: u32,
  height: u32,
}
 
impl Rectangle {
  fn area(&self) -> u32 {
    self.width * self.height
  }
}

Using impl, you can associate methods to structs. Method syntax removes need to create a function that takes in a reference to the struct.

Nested Paths §

use std::cmp::Ordering; 
use std::io;
// simplify to:
use std::{cmp::Ordering, io};
// or:
use std::io; 
use std::io::Write;
// to:
use std::io {self, Write};

Glob Operatior §

use std::collections::*

Imports all public items in path