Loops: loop, while, for

Rust provides three primary looping constructs: loop, while, and for.

loop

Executes a block endlessly until manually broken.

loop {
    println!("This will repeat forever");
    break;
}

Use break to exit the loop and continue to skip to the next iteration.

while

Repeats as long as the condition is true.

let mut number = 3;
while number != 0 {
    println!("{}", number);
    number -= 1;
}

for

Used for iterating over a range or collection.

for number in 1..4 {
    println!("{}", number);
}

1..4 is a range that includes 1, 2, 3.