select.js 1.49 KB
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'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _filter = require('./internal/filter');

var _filter2 = _interopRequireDefault(_filter);

var _doParallel = require('./internal/doParallel');

var _doParallel2 = _interopRequireDefault(_doParallel);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/**
 * Returns a new array of all the values in `coll` which pass an async truth
 * test. This operation is performed in parallel, but the results array will be
 * in the same order as the original.
 *
 * @name filter
 * @static
 * @memberOf module:Collections
 * @method
 * @alias select
 * @category Collection
 * @param {Array|Iterable|Object} coll - A collection to iterate over.
 * @param {Function} iteratee - A truth test to apply to each item in `coll`.
 * The `iteratee` is passed a `callback(err, truthValue)`, which must be called
 * with a boolean argument once it has completed. Invoked with (item, callback).
 * @param {Function} [callback] - A callback which is called after all the
 * `iteratee` functions have finished. Invoked with (err, results).
 * @example
 *
 * async.filter(['file1','file2','file3'], function(filePath, callback) {
 *     fs.access(filePath, function(err) {
 *         callback(null, !err)
 *     });
 * }, function(err, results) {
 *     // results now equals an array of the existing files
 * });
 */
exports.default = (0, _doParallel2.default)(_filter2.default);
module.exports = exports['default'];