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Diffstat (limited to 'node_modules/async/reduce.js')
-rw-r--r-- | node_modules/async/reduce.js | 73 |
1 files changed, 0 insertions, 73 deletions
diff --git a/node_modules/async/reduce.js b/node_modules/async/reduce.js deleted file mode 100644 index 15e26eae6..000000000 --- a/node_modules/async/reduce.js +++ /dev/null @@ -1,73 +0,0 @@ -'use strict'; - -Object.defineProperty(exports, "__esModule", { - value: true -}); -exports.default = reduce; - -var _eachOfSeries = require('./eachOfSeries'); - -var _eachOfSeries2 = _interopRequireDefault(_eachOfSeries); - -var _noop = require('lodash/noop'); - -var _noop2 = _interopRequireDefault(_noop); - -var _once = require('./internal/once'); - -var _once2 = _interopRequireDefault(_once); - -function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } - -/** - * Reduces `coll` into a single value using an async `iteratee` to return each - * successive step. `memo` is the initial state of the reduction. This function - * only operates in series. - * - * For performance reasons, it may make sense to split a call to this function - * into a parallel map, and then use the normal `Array.prototype.reduce` on the - * results. This function is for situations where each step in the reduction - * needs to be async; if you can get the data before reducing it, then it's - * probably a good idea to do so. - * - * @name reduce - * @static - * @memberOf module:Collections - * @method - * @alias inject - * @alias foldl - * @category Collection - * @param {Array|Iterable|Object} coll - A collection to iterate over. - * @param {*} memo - The initial state of the reduction. - * @param {Function} iteratee - A function applied to each item in the - * array to produce the next step in the reduction. The `iteratee` is passed a - * `callback(err, reduction)` which accepts an optional error as its first - * argument, and the state of the reduction as the second. If an error is - * passed to the callback, 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). - * @example - * - * async.reduce([1,2,3], 0, function(memo, item, callback) { - * // pointless async: - * process.nextTick(function() { - * callback(null, memo + item) - * }); - * }, function(err, result) { - * // result is now equal to the last value of memo, which is 6 - * }); - */ -function reduce(coll, memo, iteratee, callback) { - callback = (0, _once2.default)(callback || _noop2.default); - (0, _eachOfSeries2.default)(coll, function (x, i, callback) { - iteratee(memo, x, function (err, v) { - memo = v; - callback(err); - }); - }, function (err) { - callback(err, memo); - }); -} -module.exports = exports['default'];
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