From 2ac66b78f0d2068166c617e6e82d038ac4d46f0a Mon Sep 17 00:00:00 2001
From: Misko Hevery
Date: Fri, 23 Jul 2010 12:01:59 -0700
Subject: minor per improvement

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

(limited to 'src')

diff --git a/src/directives.js b/src/directives.js
index 3e0aeffb..32b012f3 100644
--- a/src/directives.js
+++ b/src/directives.js
@@ -224,8 +224,8 @@ function ngClass(selector) {
     var existing = element[0].className + ' ';
     return function(element){
       this.$onEval(function(){
-        var value = this.$eval(expression);
         if (selector(this.$index)) {
+          var value = this.$eval(expression);
           if (isArray(value)) value = value.join(' ');
           element[0].className = trim(existing + value);
         }
-- 
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