Channels between two threads

playground.rs

use std::thread;
use std::sync::mpsc;

fn main() {
    let (tx, rx) = mpsc::channel();

    let h1 = thread::spawn(move || {
        let val = String::from("hi");
        tx.send(val).unwrap();
    });
    
    let h2 = thread::spawn(move || {
        let val = rx.recv().unwrap();
        println!("{}", val);
    });
    
    h1.join().unwrap();
    h2.join().unwrap();
}