async/detectLimit.js

'use strict';

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

var _createTester = require('./internal/createTester');

var _createTester2 = _interopRequireDefault(_createTester);

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 [`detect`]{@link module:Collections.detect} but runs a maximum of `limit` async operations at a
 * time.
 *
 * @name detectLimit
 * @static
 * @memberOf module:Collections
 * @method
 * @see [async.detect]{@link module:Collections.detect}
 * @alias findLimit
 * @category Collections
 * @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 - A truth test to apply to each item in `coll`.
 * The iteratee must complete with a boolean value as its result.
 * Invoked with (item, callback).
 * @param {Function} [callback] - A callback which is called as soon as any
 * iteratee returns `true`, or after all the `iteratee` functions have finished.
 * Result will be the first item in the array that passes the truth test
 * (iteratee) or the value `undefined` if none passed. Invoked with
 * (err, result).
 * @returns a Promise if no callback is passed
 */
function detectLimit(coll, limit, iteratee, callback) {
  return (0, _createTester2.default)(bool => bool, (res, item) => item)((0, _eachOfLimit2.default)(limit), coll, iteratee, callback);
}
exports.default = (0, _awaitify2.default)(detectLimit, 4);
module.exports = exports['default'];