rust - Is there any way to unpack an iterator into a tuple?

Question

Is there any way to accomplish something like the following:

let v = vec![1, 2, 3];
let (a, b) = v.iter().take(2);

Such that a = 1 and b = 2 at the end?

I know I could just use a vector but I would like to have named variables.

Answer 1

The itertools crate has methods like tuples and next_tuple that can help with this.

use itertools::Itertools; // 0.9.0

fn main() {
    let v = vec![1, 2, 3];
    let (a, b) = v.iter().next_tuple().unwrap();

    assert_eq!(a, &1);
    assert_eq!(b, &2);
}