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fn main() {
    let mut counter = 0;

    let result = loop {
        counter += 1;

        if counter == 10 {
            break counter * 2;
        }
    };

    println!("The result is {result}");
}

While

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Code Block
fn main() { let mut number = 3; while number != 0 { println!("{number}!"); number -= 1; } println!("LIFTOFF!!!"); }

For

Looping Through a Collection with for

fn main() {
    let a = [10, 20, 30, 40, 50];

    for element in a {
        println!("the value is: {element}");
    }
}

Here’s what the countdown would look like using a for loop and another method we’ve not yet talked about, rev, to reverse the range:

fn main() {
    for number in (1..4).rev() {
        println!("{number}!");
    }
    println!("LIFTOFF!!!");
}

...