Rust code shared from the playground

playground.rs

use std::sync::{Arc, Mutex};
use std::thread;
use std::sync::mpsc;

fn main() {
    let v = vec![1, 2];
    println!("{:?}", v.iter().map(|x| x.to_string()).collect::<Vec<_>>().join(" "));
    
    let mut iter = (0..4).zip((0..6));
    for (x, y) in iter {
        println!("{:?}, {:?}", x, y);
        }

    let data = Arc::new(Mutex::new(0));

    // `tx` is the "transmitter" or "sender".
    // `rx` is the "receiver".
    let (tx, rx) = mpsc::channel();

    for _ in 0..10 {
        let (data, tx) = (data.clone(), tx.clone());

        thread::spawn(move || {
            let mut data = data.lock().unwrap();
            *data += 1;

            tx.send(()).unwrap();
        });
    }

    for _ in 0..10 {
        rx.recv().unwrap();
    }
}