async/selectLimit.js

'use strict';

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

var _filter2 = require('./internal/filter');

var _filter3 = _interopRequireDefault(_filter2);

var _eachOfLimit = require('./internal/eachOfLimit');

var _eachOfLimit2 = _interopRequireDefault(_eachOfLimit);

var _awaitify = require('./internal/awaitify');

var _awaitify2 = _interopRequireDefault(_awaitify);

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

/**
 * The same as [`filter`]{@link module:Collections.filter} but runs a maximum of `limit` async operations at a
 * time.
 *
 * @name filterLimit
 * @static
 * @memberOf module:Collections
 * @method
 * @see [async.filter]{@link module:Collections.filter}
 * @alias selectLimit
 * @category Collection
 * @param {Array|Iterable|AsyncIterable|Object} coll - A collection to iterate over.
 * @param {number} limit - The maximum number of async operations at a time.
 * @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).
 * @returns {Promise} a promise, if no callback provided
 */
function filterLimit(coll, limit, iteratee, callback) {
  return (0, _filter3.default)((0, _eachOfLimit2.default)(limit), coll, iteratee, callback);
}
exports.default = (0, _awaitify2.default)(filterLimit, 4);
module.exports = exports['default'];