From 7f23d279a8704c51791375b636ff532b9d476e45 Mon Sep 17 00:00:00 2001
From: Jeremy Ashkenas <jashkenas@gmail.com>
Date: Mon, 31 Oct 2011 10:40:45 -0400
Subject: [PATCH] Fixes #335.

---
 underscore.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/underscore.js b/underscore.js
index 1f7df5ad5..80a1867f3 100644
--- a/underscore.js
+++ b/underscore.js
@@ -732,7 +732,7 @@
     // Ensure that both objects contain the same number of properties.
     if (result) {
       for (key in b) {
-        if (hasOwnProperty.call(b, key) && !size--) break;
+        if (hasOwnProperty.call(b, key) && !(size--)) break;
       }
       result = !size;
     }