react app

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

@@ -0,0 +1,25 @@
+/**
+ * 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 isNode
+ * @typechecks
+ */
+
+/**
+ * @param {*} object The object to check.
+ * @return {boolean} Whether or not the object is a DOM node.
+ */
+function isNode(object) {
+  return !!(object && (
+    ((typeof Node === 'function' ? object instanceof Node : typeof object === 'object' &&
+    typeof object.nodeType === 'number' &&
+    typeof object.nodeName === 'string'))
+  ));
+}
+
+module.exports = isNode;