From 0e828e5b3b8c18f22b94cb914e464f9c81b67913 Mon Sep 17 00:00:00 2001
From: John-David Dalton <john.david.dalton@gmail.com>
Date: Wed, 16 Apr 2014 08:39:12 -0700
Subject: [PATCH] Ensure `_.difference` works with arrays regardless of arg
 position.

---
 lodash.js | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/lodash.js b/lodash.js
index e32c1f0f9..6e3afb83d 100644
--- a/lodash.js
+++ b/lodash.js
@@ -2388,7 +2388,16 @@
      * // => [1, 3]
      */
     function difference() {
-      return baseDifference(arguments[0], baseFlatten(arguments, true, true, 1));
+      var index = -1,
+          length = arguments.length;
+
+      while (++index < length) {
+        var value = arguments[index];
+        if (isArray(value) || isArguments(value)) {
+          break;
+        }
+      }
+      return baseDifference(arguments[index], baseFlatten(arguments, true, true, ++index));
     }
 
     /**