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JavaScript

2 years ago
'use strict';
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = parallelLimit;
var _eachOfLimit = require('./internal/eachOfLimit.js');
var _eachOfLimit2 = _interopRequireDefault(_eachOfLimit);
var _parallel = require('./internal/parallel.js');
var _parallel2 = _interopRequireDefault(_parallel);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
/**
* The same as [`parallel`]{@link module:ControlFlow.parallel} but runs a maximum of `limit` async operations at a
* time.
*
* @name parallelLimit
* @static
* @memberOf module:ControlFlow
* @method
* @see [async.parallel]{@link module:ControlFlow.parallel}
* @category Control Flow
* @param {Array|Iterable|AsyncIterable|Object} tasks - A collection of
* [async functions]{@link AsyncFunction} to run.
* Each async function can complete with any number of optional `result` values.
* @param {number} limit - The maximum number of async operations at a time.
* @param {Function} [callback] - An optional callback to run once all the
* functions have completed successfully. This function gets a results array
* (or object) containing all the result arguments passed to the task callbacks.
* Invoked with (err, results).
* @returns {Promise} a promise, if a callback is not passed
*/
function parallelLimit(tasks, limit, callback) {
return (0, _parallel2.default)((0, _eachOfLimit2.default)(limit), tasks, callback);
}
module.exports = exports['default'];