react app

react-app/node_modules/react/lib/forEachAccumulated.js

@@ -0,0 +1,29 @@
+/**
+ * Copyright 2013-2015, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ * @providesModule forEachAccumulated
+ */
+
+'use strict';
+
+/**
+ * @param {array} an "accumulation" of items which is either an Array or
+ * a single item. Useful when paired with the `accumulate` module. This is a
+ * simple utility that allows us to reason about a collection of items, but
+ * handling the case when there is exactly one item (and we do not need to
+ * allocate an array).
+ */
+var forEachAccumulated = function(arr, cb, scope) {
+  if (Array.isArray(arr)) {
+    arr.forEach(cb, scope);
+  } else if (arr) {
+    cb.call(scope, arr);
+  }
+};
+
+module.exports = forEachAccumulated;