Async Await Promise Demo

Video: https://harrywork.com/cos/site/blog/video/2020/promise.mp4

const delay = ms=>new Promise(r=>setTimeout(r,ms));
async function run(){
  await delay(2000); console.log('step1');
  await delay(1000); console.log('step2');
  await delay(500);  console.log('step3');
}
run();