44 lines
1.5 KiB
JavaScript
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'];
|