reflectAll.js 2.7 KB

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  1. 'use strict';
  2. Object.defineProperty(exports, "__esModule", {
  3. value: true
  4. });
  5. exports.default = reflectAll;
  6. var _reflect = require('./reflect');
  7. var _reflect2 = _interopRequireDefault(_reflect);
  8. var _isArray = require('lodash/isArray');
  9. var _isArray2 = _interopRequireDefault(_isArray);
  10. var _arrayMap2 = require('lodash/_arrayMap');
  11. var _arrayMap3 = _interopRequireDefault(_arrayMap2);
  12. var _baseForOwn = require('lodash/_baseForOwn');
  13. var _baseForOwn2 = _interopRequireDefault(_baseForOwn);
  14. function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
  15. /**
  16. * A helper function that wraps an array or an object of functions with reflect.
  17. *
  18. * @name reflectAll
  19. * @static
  20. * @memberOf module:Utils
  21. * @method
  22. * @see [async.reflect]{@link module:Utils.reflect}
  23. * @category Util
  24. * @param {Array} tasks - The array of functions to wrap in `async.reflect`.
  25. * @returns {Array} Returns an array of functions, each function wrapped in
  26. * `async.reflect`
  27. * @example
  28. *
  29. * let tasks = [
  30. * function(callback) {
  31. * setTimeout(function() {
  32. * callback(null, 'one');
  33. * }, 200);
  34. * },
  35. * function(callback) {
  36. * // do some more stuff but error ...
  37. * callback(new Error('bad stuff happened'));
  38. * },
  39. * function(callback) {
  40. * setTimeout(function() {
  41. * callback(null, 'two');
  42. * }, 100);
  43. * }
  44. * ];
  45. *
  46. * async.parallel(async.reflectAll(tasks),
  47. * // optional callback
  48. * function(err, results) {
  49. * // values
  50. * // results[0].value = 'one'
  51. * // results[1].error = Error('bad stuff happened')
  52. * // results[2].value = 'two'
  53. * });
  54. *
  55. * // an example using an object instead of an array
  56. * let tasks = {
  57. * one: function(callback) {
  58. * setTimeout(function() {
  59. * callback(null, 'one');
  60. * }, 200);
  61. * },
  62. * two: function(callback) {
  63. * callback('two');
  64. * },
  65. * three: function(callback) {
  66. * setTimeout(function() {
  67. * callback(null, 'three');
  68. * }, 100);
  69. * }
  70. * };
  71. *
  72. * async.parallel(async.reflectAll(tasks),
  73. * // optional callback
  74. * function(err, results) {
  75. * // values
  76. * // results.one.value = 'one'
  77. * // results.two.error = 'two'
  78. * // results.three.value = 'three'
  79. * });
  80. */
  81. function reflectAll(tasks) {
  82. var results;
  83. if ((0, _isArray2.default)(tasks)) {
  84. results = (0, _arrayMap3.default)(tasks, _reflect2.default);
  85. } else {
  86. results = {};
  87. (0, _baseForOwn2.default)(tasks, function (task, key) {
  88. results[key] = _reflect2.default.call(this, task);
  89. });
  90. }
  91. return results;
  92. }
  93. module.exports = exports['default'];