From 223323ac827eb235a2b884d17a40c7afc1f6feb6 Mon Sep 17 00:00:00 2001
From: rolux <rolux@rolux.org>
Date: Fri, 25 May 2012 15:16:21 +0200
Subject: [PATCH] add Array.prototype.reduceRight

---
 source/Ox/js/Fallback.js | 31 ++++++++++++++++++++++++++++---
 1 file changed, 28 insertions(+), 3 deletions(-)

diff --git a/source/Ox/js/Fallback.js b/source/Ox/js/Fallback.js
index 2046b5a3..56788cdd 100644
--- a/source/Ox/js/Fallback.js
+++ b/source/Ox/js/Fallback.js
@@ -99,13 +99,13 @@ if (!Array.prototype.map) {
 
 // see https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/reduce
 if (!Array.prototype.reduce) {
-    Array.prototype.reduce = function reduce(fn, ret) {
+    Array.prototype.reduce = function(fn, ret) {
         if (this === void 0 || this === null || typeof fn !== 'function') {
             throw new TypeError();
         }
         var arr = Object(this),
             i,
-            len = this.length;
+            len = arr.length;
         if (!len && ret === void 0) {
             throw new TypeError();
         }
@@ -113,7 +113,32 @@ if (!Array.prototype.reduce) {
             ret = arr[0];
             i = 1;
         }
-        for (i = i || 0; i < len ; ++i) {
+        for (i = i || 0; i < len; i++) {
+            if (i in arr) {
+                ret = fn.call(void 0, ret, arr[i], i, arr);
+            }
+        }
+        return ret;
+    };
+}
+
+// see https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/reduceRight
+if (!Array.prototype.reduceRight) {
+    Array.prototype.reduceRight = function(fn, ret) {
+        if (this === void 0 || this === null || typeof fn !== 'function') {
+            throw new TypeError();
+        }
+        var arr = Object(this),
+            i,
+            len = arr.length;
+        if (!len && ret === void 0) {
+            throw new TypeError();
+        }
+        if (ret === void 0) {
+            ret = arr[len - 1];
+            i = len - 2;
+        }
+        for (i = i || len - 1; i >= 0; i--) {
             if (i in arr) {
                 ret = fn.call(void 0, ret, arr[i], i, arr);
             }