From 751ebc17f7fc7be26613db0a3cdee05fc401318b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20M=C3=BCller?= <info@sebastian-mueller.net>
Date: Fri, 6 Jun 2014 21:37:28 +0200
Subject: [PATCH] perf(isArray): use native Array.isArray

see benchmark: http://jsperf.com/isarray-performance

Closes #7735
---
 src/Angular.js | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/Angular.js b/src/Angular.js
index 7d38957a..a81fe1c9 100644
--- a/src/Angular.js
+++ b/src/Angular.js
@@ -510,10 +510,14 @@ function isDate(value) {
  * @param {*} value Reference to check.
  * @returns {boolean} True if `value` is an `Array`.
  */
-function isArray(value) {
-  return toString.call(value) === '[object Array]';
-}
-
+var isArray = (function() {
+  if (!isFunction(Array.isArray)) {
+    return function(value) {
+      return toString.call(value) === '[object Array]';
+    };
+  }
+  return Array.isArray;
+})();
 
 /**
  * @ngdoc function