1. /**
  2. * Initializes query string components for testing.
  3. *
  4. * @param {string} queryString The query string to parse.
  5. * @returns {object} An object containing the parsed query string components.
  6. */
  7. function initQueryString(queryString) {
  8. const params = {};
  10. if (queryString) {
  11. const pairs = queryString.startsWith('?') ? queryString.slice(1).split('&') : queryString.split('&');
  13. for (const pair of pairs) {
  14. if (pair) {
  15. const [key, value] = pair.split('=');
  16. params[key] = value || true; // Default to true if no value is provided.
  17. }
  18. }
  19. }
  21. return params;
  22. }
  24. // Example usage (for testing purposes)
  25. // const queryString = "param1=value1&param2=value2&param3";
  26. // const params = initQueryString(queryString);
  27. // console.log(params); // Output: { param1: 'value1', param2: 'value2', param3: true }
  29. // Support for older browsers that might not have startsWith
  30. function initQueryStringOldBrowser(queryString) {
  31. const params = {};
  32. if (queryString) {
  33. const pairs = queryString.split('&');
  34. for (const pair of pairs) {
  35. if (pair) {
  36. const [key, value] = pair.split('=');
  37. params[key] = value || true;
  38. }
  39. }
  40. }
  41. return params;
  42. }

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