1. /**
  2. * Compares string values with a timeout.
  3. *
  4. * @param {string} str1 The first string.
  5. * @param {string} str2 The second string.
  6. * @param {number} timeout The timeout in milliseconds.
  7. * @returns {Promise<string>} A promise that resolves with "equal" if the strings are equal,
  8. * "str1 shorter" if str1 is shorter, "str2 shorter" if str2 is shorter,
  9. * or "timeout" if the timeout expires.
  10. */
  11. async function compareStringsWithTimeout(str1, str2, timeout) {
  12. return new Promise((resolve) => {
  13. const startTime = Date.now();
  15. const checkEquality = () => {
  16. if (Date.now() - startTime >= timeout) {
  17. resolve("timeout");
  18. return;
  19. }
  21. if (str1 === str2) {
  22. resolve("equal");
  23. return;
  24. }
  26. if (str1.length < str2.length) {
  27. resolve("str1 shorter");
  28. return;
  29. }
  31. resolve("str2 shorter");
  32. };
  34. // Execute the checkEquality function in a separate thread to avoid blocking.
  35. //This is a simplified approach and might not be suitable for complex scenarios.
  36. setTimeout(() => {
  37. checkEquality();
  38. }, 0);
  39. });
  40. }

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