node_modules

1 files changed, 87 insertions, 0 deletions

diff --git a/node_modules/async/transform.js b/node_modules/async/transform.js
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+'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);
+
+var _wrapAsync = require('./internal/wrapAsync');
+
+var _wrapAsync2 = _interopRequireDefault(_wrapAsync);
+
+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 {AsyncFunction} iteratee - A function applied to each item in the
+ * collection that potentially modifies the accumulator.
+ * 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);
+    var _iteratee = (0, _wrapAsync2.default)(iteratee);
+
+    (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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