From 5edc3761c683e0f64688fa9f8dc3a156702b7241 Mon Sep 17 00:00:00 2001
From: Jeremy Ashkenas <jashkenas@gmail.com>
Date: Wed, 13 Jul 2011 12:27:11 -0400
Subject: [PATCH] Issue #209, fix reduce without a memo for arrays that are
 sparse at the beginning.

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

diff --git a/underscore.js b/underscore.js
index bf004d3ca..8a2a65622 100644
--- a/underscore.js
+++ b/underscore.js
@@ -107,7 +107,7 @@
       return initial ? obj.reduce(iterator, memo) : obj.reduce(iterator);
     }
     each(obj, function(value, index, list) {
-      if (!initial && index === 0) {
+      if (!initial) {
         memo = value;
         initial = true;
       } else {