index.html 715 B

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  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4. <meta charset="UTF-8" />
  5. <meta http-equiv="X-UA-Compatible" content="IE=edge" />
  6. <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  7. <title>Document</title>
  8. </head>
  9. <body>
  10. <script>
  11. var p;
  12. try {
  13. p = new Promise((res, rej) => {
  14. // 抛出异常后 会将promise对象 变成失败的状态
  15. throw new Error('就是这么傲娇.');
  16. rej('莫名其妙 无理取闹'); // 将promise对象 变成失败的状态
  17. });
  18. // .catch((err) => err);
  19. } catch (error) {
  20. console.error('走了吗', error);
  21. }
  22. console.log(p);
  23. </script>
  24. </body>
  25. </html>