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45 lines
1.6 KiB
JavaScript

'use strict';
Object.defineProperty(exports, "__esModule", {
value: true
});
var _map2 = require('./internal/map.js');
var _map3 = _interopRequireDefault(_map2);
var _eachOfLimit = require('./internal/eachOfLimit.js');
var _eachOfLimit2 = _interopRequireDefault(_eachOfLimit);
var _awaitify = require('./internal/awaitify.js');
var _awaitify2 = _interopRequireDefault(_awaitify);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
/**
* The same as [`map`]{@link module:Collections.map} but runs a maximum of `limit` async operations at a time.
*
* @name mapLimit
* @static
* @memberOf module:Collections
* @method
* @see [async.map]{@link module:Collections.map}
* @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 iteratee should complete with the transformed item.
* Invoked with (item, callback).
* @param {Function} [callback] - A callback which is called when all `iteratee`
* functions have finished, or an error occurs. Results is an array of the
* transformed items from the `coll`. Invoked with (err, results).
* @returns {Promise} a promise, if no callback is passed
*/
function mapLimit(coll, limit, iteratee, callback) {
return (0, _map3.default)((0, _eachOfLimit2.default)(limit), coll, iteratee, callback);
}
exports.default = (0, _awaitify2.default)(mapLimit, 4);
module.exports = exports['default'];