WIKIPEDIA forEachOfLimit.js

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'use strict';

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

var _eachOfLimit2 = require('./internal/eachOfLimit.js');

var _eachOfLimit3 = _interopRequireDefault(_eachOfLimit2);

var _wrapAsync = require('./internal/wrapAsync.js');

var _wrapAsync2 = _interopRequireDefault(_wrapAsync);

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

var _awaitify2 = _interopRequireDefault(_awaitify);

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

/**
 * The same as [`eachOf`]{@link module:Collections.eachOf} but runs a maximum of `limit` async operations at a
 * time.
 *
 * @name eachOfLimit
 * @static
 * @memberOf module:Collections
 * @method
 * @see [async.eachOf]{@link module:Collections.eachOf}
 * @alias forEachOfLimit
 * @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 {AsyncFunction} iteratee - An async function to apply to each
 * item in `coll`. The `key` is the item's key, or index in the case of an
 * array.
 * Invoked with (item, key, callback).
 * @param {Function} [callback] - A callback which is called when all
 * `iteratee` functions have finished, or an error occurs. Invoked with (err).
 * @returns {Promise} a promise, if a callback is omitted
 */
function eachOfLimit(coll, limit, iteratee, callback) {
  return (0, _eachOfLimit3.default)(limit)(coll, (0, _wrapAsync2.default)(iteratee), callback);
}

exports.default = (0, _awaitify2.default)(eachOfLimit, 4);
module.exports = exports['default'];