1.html 805 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. const promise1 = new Promise((resolve, reject) => {
  12. setTimeout(() => {
  13. resolve("success");
  14. console.log("timer1");
  15. }, 1000);
  16. console.log("promise1里的内容");
  17. });
  18. const promise2 = promise1.then(() => {
  19. throw new Error("error!!!");
  20. });
  21. console.log("promise1", promise1);
  22. console.log("promise2", promise2);
  23. setTimeout(() => {
  24. console.log("timer2");
  25. console.log("promise1", promise1);
  26. console.log("promise2", promise2);
  27. }, 2000);
  28. </script>
  29. </body>
  30. </html>