Code shared from the Rust Playground

playground.rs

fn main() {
    let numbers = vec![1, 2, 3, 4, 5, 6, 7, 8, 9, 10].into_iter();
    let evens = numbers.filter(|x| *x % 2 == 0);
    let even_squares = evens.clone().map(|x| x * x);
    let result = even_squares.clone().collect::<Vec<_>>();
    println!("{:?}", result);      // prints [4,16,36,64,100]
    println!("{:?}\n{:?}", evens, even_squares);
}