1 files changed, 23 insertions, 0 deletions
diff --git a/node_modules/fbjs/lib/isNode.js.flow b/node_modules/fbjs/lib/isNode.js.flow
new file mode 100644
index 000000000..0b43a0871
--- /dev/null
+++ b/node_modules/fbjs/lib/isNode.js.flow
@@ -0,0 +1,23 @@
+/**
+ * Copyright (c) 2013-present, 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) {
+  var doc = object ? object.ownerDocument || object : document;
+  var defaultView = doc.defaultView || window;
+  return !!(object && (typeof defaultView.Node === 'function' ? object instanceof defaultView.Node : typeof object === 'object' && typeof object.nodeType === 'number' && typeof object.nodeName === 'string'));
+}
+
+module.exports = isNode;
+\ No newline at end of file