| 12345678910111213141516171819202122232425262728293031323334 | <!DOCTYPE html><html lang="en"><head>  <meta charset="UTF-8">  <meta http-equiv="X-UA-Compatible" content="IE=edge">  <meta name="viewport" content="width=device-width, initial-scale=1.0">  <title>Document</title></head><body>  <script>    async function async1() {      console.log('async1 start');      await async2();      console.log('async1 end');    }    async function async2() {      console.log('async2');    }    console.log('script start')    async1();    new Promise(function (resolve) {      console.log('promise1');      resolve();    }).then(function () {      console.log('promise2');    });    console.log('script end')    //sc start => asy1 start => asy2 => p1 => sc end => asy1 end => p2  </script></body></html>
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