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