node_modules

1 files changed, 24 insertions, 0 deletions

diff --git a/node_modules/fbjs/lib/isNode.js b/node_modules/fbjs/lib/isNode.js
new file mode 100644
index 000000000..0ec7b7ee8
--- /dev/null
+++ b/node_modules/fbjs/lib/isNode.js
@@ -0,0 +1,24 @@
+'use strict';
+
+/**
+ * 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.
+ *
+ * @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;
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