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Diffstat (limited to 'node_modules/async/transform.js')
-rw-r--r-- | node_modules/async/transform.js | 85 |
1 files changed, 0 insertions, 85 deletions
diff --git a/node_modules/async/transform.js b/node_modules/async/transform.js deleted file mode 100644 index e80d1ee51..000000000 --- a/node_modules/async/transform.js +++ /dev/null @@ -1,85 +0,0 @@ -'use strict'; - -Object.defineProperty(exports, "__esModule", { - value: true -}); -exports.default = transform; - -var _isArray = require('lodash/isArray'); - -var _isArray2 = _interopRequireDefault(_isArray); - -var _noop = require('lodash/noop'); - -var _noop2 = _interopRequireDefault(_noop); - -var _eachOf = require('./eachOf'); - -var _eachOf2 = _interopRequireDefault(_eachOf); - -var _once = require('./internal/once'); - -var _once2 = _interopRequireDefault(_once); - -function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } - -/** - * A relative of `reduce`. Takes an Object or Array, and iterates over each - * element in series, each step potentially mutating an `accumulator` value. - * The type of the accumulator defaults to the type of collection passed in. - * - * @name transform - * @static - * @memberOf module:Collections - * @method - * @category Collection - * @param {Array|Iterable|Object} coll - A collection to iterate over. - * @param {*} [accumulator] - The initial state of the transform. If omitted, - * it will default to an empty Object or Array, depending on the type of `coll` - * @param {Function} iteratee - A function applied to each item in the - * collection that potentially modifies the accumulator. The `iteratee` is - * passed a `callback(err)` which accepts an optional error as its first - * argument. If an error is passed to the callback, the transform is stopped - * and the main `callback` is immediately called with the error. - * Invoked with (accumulator, item, key, callback). - * @param {Function} [callback] - A callback which is called after all the - * `iteratee` functions have finished. Result is the transformed accumulator. - * Invoked with (err, result). - * @example - * - * async.transform([1,2,3], function(acc, item, index, callback) { - * // pointless async: - * process.nextTick(function() { - * acc.push(item * 2) - * callback(null) - * }); - * }, function(err, result) { - * // result is now equal to [2, 4, 6] - * }); - * - * @example - * - * async.transform({a: 1, b: 2, c: 3}, function (obj, val, key, callback) { - * setImmediate(function () { - * obj[key] = val * 2; - * callback(); - * }) - * }, function (err, result) { - * // result is equal to {a: 2, b: 4, c: 6} - * }) - */ -function transform(coll, accumulator, iteratee, callback) { - if (arguments.length === 3) { - callback = iteratee; - iteratee = accumulator; - accumulator = (0, _isArray2.default)(coll) ? [] : {}; - } - callback = (0, _once2.default)(callback || _noop2.default); - - (0, _eachOf2.default)(coll, function (v, k, cb) { - iteratee(accumulator, v, k, cb); - }, function (err) { - callback(err, accumulator); - }); -} -module.exports = exports['default'];
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