RUST

rust lang sleep

use std::time::Duration;
use std::thread::sleep;

fn main() {
    sleep(Duration::from_millis(2));
}

rust sleep

use std::{thread, time};

loop {
    let ten_millis = time::Duration::from_millis(10);
    let now = time::Instant::now();
    thread::sleep(ten_millis);
}

sleep in rust

use std::thread::sleep;
use std::time::Duration;

fn main() {
  fn set_timeout(callback: fn() -> (), time: u64) -> () {
    sleep(Duration::from_secs(time));
    callback();
  }

  set_timeout(|| {
    println!("Hello World after 3 secs");
  }, 3)
}