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					44 lines
				
				1.5 KiB
			
		
		
			
		
	
	
					44 lines
				
				1.5 KiB
			| 
											3 years ago
										 | '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']; |