1. /**
  2. * Tracks execution of user data for a one-off script.
  3. * Handles edge cases such as missing or invalid data.
  4. */
  5. function trackUserData(userData) {
  6. try {
  7. // Validate input: Check if userData is an object.
  8. if (typeof userData !== 'object' || userData === null) {
  9. console.warn("Invalid userData: Must be an object.");
  10. return; // Exit if invalid
  11. }
  13. // Check for required fields. Return early if missing.
  14. if (!userData.userId || typeof userData.userId !== 'string' || userData.userId.trim() === "") {
  15. console.warn("Missing or invalid userId.");
  16. return;
  17. }
  18. if (!userData.timestamp || !Number.isFinite(userData.timestamp)) {
  19. console.warn("Missing or invalid timestamp.");
  20. return;
  21. }
  23. // Simulate data processing. Replace with actual logic.
  24. let processedData = processUserData(userData);
  27. // Log the processed data.
  28. console.log("Processed User Data:", processedData);
  31. } catch (error) {
  32. console.error("Error processing user data:", error);
  33. // Optionally, log the error to a more persistent storage (e.g., file, database).
  34. }
  35. }
  37. /**
  38. * Simulates processing user data. Replace with your actual logic.
  39. * @param {object} userData - User data object.
  40. * @returns {object} - Processed user data.
  41. */
  42. function processUserData(userData) {
  43. //Example: Adding a calculated field.
  44. const processed = {
  45. ...userData, // Copy original data
  46. processedAt: new Date(),
  47. calculatedValue: userData.userId.length * 2 //Example calculation
  48. };
  49. return processed;
  50. }
  53. // Example usage with different test cases:
  54. trackUserData({ userId: "user123", timestamp: Date.now() });
  55. trackUserData({ userId: "", timestamp: Date.now() }); // Test missing userId
  56. trackUserData({ userId: 123, timestamp: Date.now() }); // Test invalid userId
  57. trackUserData({timestamp: Date.now()}); // Test missing userId
  58. trackUserData(null); //Test null input
  59. trackUserData("string"); //Test invalid input
  60. trackUserData({userId: "user456", timestamp: "not a number"}); //Test invalid timestamp

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