From 3c54f7911339261f0e54dc3451d8ae981ca42df9 Mon Sep 17 00:00:00 2001
From: Jeremy Ashkenas <jashkenas@gmail.com>
Date: Mon, 24 Oct 2011 13:19:15 -0400
Subject: [PATCH] fixes #347

---
 test/objects.js | 4 ++++
 underscore.js   | 1 +
 2 files changed, 5 insertions(+)

diff --git a/test/objects.js b/test/objects.js
index 967ba6b21..7e6cd7cc1 100644
--- a/test/objects.js
+++ b/test/objects.js
@@ -66,6 +66,10 @@ $(document).ready(function() {
 
     clone.lucky.push(101);
     equals(_.last(moe.lucky), 101, 'changes to deep attributes are shared with the original');
+
+    equals(_.clone(undefined), void 0, 'non objects should not be changed by clone');
+    equals(_.clone(1), 1, 'non objects should not be changed by clone');
+    equals(_.clone(null), null, 'non objects should not be changed by clone');
   });
 
   test("objects: isEqual", function() {
diff --git a/underscore.js b/underscore.js
index 04f3311cd..5470fa6b3 100644
--- a/underscore.js
+++ b/underscore.js
@@ -645,6 +645,7 @@
 
   // Create a (shallow-cloned) duplicate of an object.
   _.clone = function(obj) {
+    if (!_.isObject(obj)) return obj;
     return _.isArray(obj) ? obj.slice() : _.extend({}, obj);
   };