beautiful-code.md

Beautiful code is just beautiful. Doesn't need to be simple.

• Ugly factorial function

fn factorial_loop(n: u32) -> u32 {
    let mut result = 1;
    for i in 1..=n {
        result *= i;
    }
    result
}

• Beautiful factorial function

fn factorial_match(n: u32) -> u32 {
    match n {
        0 => 1,
        _ => n * factorial_match(n - 1),
    }
}

• I'm melting factorial function

fn factorial_comprehension(n: u32) -> u32 {
    (1..=n).into_iter().product()
}