1. /**
  2. * Wraps a function that processes a list of URLs to handle errors gracefully.
  3. *
  4. * @param {function} processUrl - The function to process each URL. Should accept a URL as input.
  5. * @param {Array<string>} urls - An array of URLs to process.
  6. * @returns {Array<object>} - An array of objects, each containing the URL and either its result or an error message.
  7. */
  8. function wrapUrlList(processUrl, urls) {
  9. if (!Array.isArray(urls)) {
  10. throw new TypeError("urls must be an array");
  11. }
  13. const results = [];
  15. for (const url of urls) {
  16. if (typeof url !== 'string') {
  17. results.push({ url: url, error: "Invalid URL: Must be a string." });
  18. continue;
  19. }
  20. try {
  21. const result = processUrl(url);
  22. results.push({ url: url, result: result });
  23. } catch (error) {
  24. results.push({ url: url, error: error.message }); // Capture and store the error message
  25. }
  26. }
  28. return results;
  29. }

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