linx-simulator2/node_modules/async/foldr.js
2019-09-18 11:11:16 +03:00

44 lines
1.5 KiB
JavaScript

'use strict';
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = reduceRight;
var _reduce = require('./reduce');
var _reduce2 = _interopRequireDefault(_reduce);
var _slice = require('./internal/slice');
var _slice2 = _interopRequireDefault(_slice);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
/**
* Same as [`reduce`]{@link module:Collections.reduce}, only operates on `array` in reverse order.
*
* @name reduceRight
* @static
* @memberOf module:Collections
* @method
* @see [async.reduce]{@link module:Collections.reduce}
* @alias foldr
* @category Collection
* @param {Array} array - A collection to iterate over.
* @param {*} memo - The initial state of the reduction.
* @param {AsyncFunction} iteratee - A function applied to each item in the
* array to produce the next step in the reduction.
* The `iteratee` should complete with the next state of the reduction.
* If the iteratee complete with an error, the reduction is stopped and the
* main `callback` is immediately called with the error.
* Invoked with (memo, item, callback).
* @param {Function} [callback] - A callback which is called after all the
* `iteratee` functions have finished. Result is the reduced value. Invoked with
* (err, result).
*/
function reduceRight(array, memo, iteratee, callback) {
var reversed = (0, _slice2.default)(array).reverse();
(0, _reduce2.default)(reversed, memo, iteratee, callback);
}
module.exports = exports['default'];