js/relearning/16-js-execute-promise.html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Title</title>
</head>
<body>
<script>
  // function sleep (duration) {
  //   return new Promise(function (resolve, rejected) {
  //     setTimeout(resolve, duration)
  //   })
  // }
  //
  // async function foo() {
  //   console.log('a')
  //   await foo(2000)
  //   console.log('b')
  // }

  function sleep(duration) {
    return new Promise(function(resolve, reject) {
      setTimeout(resolve, duration)
    })
  }
  async function foo(name){
    await sleep(2000)
    console.log(name)
  }
  async function foo2(){
    await foo("a");
    await foo("b");
  }
  foo2()

  async function f2() {
    var y = await 20;
    console.log(y); // 20
  }
  f2();

</script>
</body>
</html>