From 31c79f51415308e83b26d589e2da996c176c5e0d Mon Sep 17 00:00:00 2001
From: Boris Serdyuk <just-boris@hotmail.com>
Date: Sat, 21 Sep 2013 12:38:09 +0400
Subject: [PATCH] refactor(angular.toJson): use charAt instead of regexp

---
 src/Angular.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Angular.js b/src/Angular.js
index bf10fe342bf3..740cd6911427 100644
--- a/src/Angular.js
+++ b/src/Angular.js
@@ -781,7 +781,7 @@ function bind(self, fn) {
 function toJsonReplacer(key, value) {
   var val = value;
 
-  if (/^\$+/.test(key)) {
+  if (typeof key === 'string' && key.charAt(0) === '$') {
     val = undefined;
   } else if (isWindow(value)) {
     val = '$WINDOW';