1 | ;
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2 |
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3 | Object.defineProperty(exports, "__esModule", {
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4 | value: true
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5 | });
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6 |
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7 | var _eachOf = require('./eachOf.js');
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8 |
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9 | var _eachOf2 = _interopRequireDefault(_eachOf);
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10 |
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11 | var _withoutIndex = require('./internal/withoutIndex.js');
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12 |
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13 | var _withoutIndex2 = _interopRequireDefault(_withoutIndex);
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14 |
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15 | var _wrapAsync = require('./internal/wrapAsync.js');
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16 |
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17 | var _wrapAsync2 = _interopRequireDefault(_wrapAsync);
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18 |
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19 | var _awaitify = require('./internal/awaitify.js');
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20 |
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21 | var _awaitify2 = _interopRequireDefault(_awaitify);
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22 |
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23 | function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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24 |
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25 | /**
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26 | * Applies the function `iteratee` to each item in `coll`, in parallel.
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27 | * The `iteratee` is called with an item from the list, and a callback for when
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28 | * it has finished. If the `iteratee` passes an error to its `callback`, the
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29 | * main `callback` (for the `each` function) is immediately called with the
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30 | * error.
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31 | *
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32 | * Note, that since this function applies `iteratee` to each item in parallel,
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33 | * there is no guarantee that the iteratee functions will complete in order.
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34 | *
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35 | * @name each
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36 | * @static
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37 | * @memberOf module:Collections
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38 | * @method
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39 | * @alias forEach
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40 | * @category Collection
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41 | * @param {Array|Iterable|AsyncIterable|Object} coll - A collection to iterate over.
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42 | * @param {AsyncFunction} iteratee - An async function to apply to
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43 | * each item in `coll`. Invoked with (item, callback).
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44 | * The array index is not passed to the iteratee.
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45 | * If you need the index, use `eachOf`.
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46 | * @param {Function} [callback] - A callback which is called when all
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47 | * `iteratee` functions have finished, or an error occurs. Invoked with (err).
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48 | * @returns {Promise} a promise, if a callback is omitted
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49 | * @example
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50 | *
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51 | * // dir1 is a directory that contains file1.txt, file2.txt
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52 | * // dir2 is a directory that contains file3.txt, file4.txt
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53 | * // dir3 is a directory that contains file5.txt
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54 | * // dir4 does not exist
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55 | *
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56 | * const fileList = [ 'dir1/file2.txt', 'dir2/file3.txt', 'dir/file5.txt'];
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57 | * const withMissingFileList = ['dir1/file1.txt', 'dir4/file2.txt'];
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58 | *
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59 | * // asynchronous function that deletes a file
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60 | * const deleteFile = function(file, callback) {
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61 | * fs.unlink(file, callback);
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62 | * };
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63 | *
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64 | * // Using callbacks
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65 | * async.each(fileList, deleteFile, function(err) {
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66 | * if( err ) {
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67 | * console.log(err);
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68 | * } else {
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69 | * console.log('All files have been deleted successfully');
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70 | * }
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71 | * });
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72 | *
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73 | * // Error Handling
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74 | * async.each(withMissingFileList, deleteFile, function(err){
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75 | * console.log(err);
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76 | * // [ Error: ENOENT: no such file or directory ]
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77 | * // since dir4/file2.txt does not exist
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78 | * // dir1/file1.txt could have been deleted
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79 | * });
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80 | *
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81 | * // Using Promises
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82 | * async.each(fileList, deleteFile)
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83 | * .then( () => {
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84 | * console.log('All files have been deleted successfully');
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85 | * }).catch( err => {
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86 | * console.log(err);
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87 | * });
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88 | *
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89 | * // Error Handling
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90 | * async.each(fileList, deleteFile)
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91 | * .then( () => {
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92 | * console.log('All files have been deleted successfully');
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93 | * }).catch( err => {
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94 | * console.log(err);
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95 | * // [ Error: ENOENT: no such file or directory ]
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96 | * // since dir4/file2.txt does not exist
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97 | * // dir1/file1.txt could have been deleted
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98 | * });
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99 | *
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100 | * // Using async/await
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101 | * async () => {
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102 | * try {
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103 | * await async.each(files, deleteFile);
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104 | * }
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105 | * catch (err) {
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106 | * console.log(err);
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107 | * }
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108 | * }
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109 | *
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110 | * // Error Handling
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111 | * async () => {
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112 | * try {
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113 | * await async.each(withMissingFileList, deleteFile);
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114 | * }
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115 | * catch (err) {
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116 | * console.log(err);
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117 | * // [ Error: ENOENT: no such file or directory ]
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118 | * // since dir4/file2.txt does not exist
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119 | * // dir1/file1.txt could have been deleted
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120 | * }
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121 | * }
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122 | *
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123 | */
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124 | function eachLimit(coll, iteratee, callback) {
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125 | return (0, _eachOf2.default)(coll, (0, _withoutIndex2.default)((0, _wrapAsync2.default)(iteratee)), callback);
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126 | }
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127 |
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128 | exports.default = (0, _awaitify2.default)(eachLimit, 3);
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129 | module.exports = exports.default; |
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