1. function validateTaskQueue(queue) {
  2. // Check if queue is an array
  3. if (!Array.isArray(queue)) {
  4. return { error: "Queue must be an array" };
  5. }
  7. // Validate each task in the queue
  8. for (let i = 0; i < queue.length; i++) {
  9. const task = queue[i];
  11. // Check if task is an object
  12. if (typeof task !== 'object' || task === null) {
  13. return { error: `Task at index ${i} must be an object` };
  14. }
  16. // Check if task has required properties
  17. if (!task.hasOwnProperty('name')) {
  18. return { error: `Task at index ${i} must have a 'name' property` };
  19. }
  21. if (!task.hasOwnProperty('data')) {
  22. return { error: `Task at index ${i} must have a 'data' property` };
  23. }
  25. if (!task.hasOwnProperty('priority')) {
  26. return {error: `Task at index ${i} must have a 'priority' property`}
  27. }
  29. // Validate data type of 'name'
  30. if (typeof task.name !== 'string') {
  31. return { error: `Task name at index ${i} must be a string` };
  32. }
  34. // Validate data type of 'data'
  35. if (typeof task.data !== 'object' || task.data === null) {
  36. return { error: `Task data at index ${i} must be an object` };
  37. }
  39. // Validate priority is a number
  40. if (typeof task.priority !== 'number' || isNaN(task.priority)) {
  41. return { error: `Task priority at index ${i} must be a number` };
  42. }
  43. }
  45. // If all validations pass, return null
  46. return null;
  47. }

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