tutorials/performance/principle/examples/micro-and-macro-task1.html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title></title>
</head>
<body>
  <script>
    setTimeout(() => {
      console.log('timeout');
    }, 0);
    Promise.resolve().then(() => {
      console.log('resolved');
    });
  </script>
</body>
</html>