From c3a9733ac14aa0ebf06cc4d9e3ababe8c9be6220 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Maciej=20Ma=C5=82ecki?= <maciej.malecki@notimplemented.org>
Date: Sat, 18 Feb 2012 16:32:06 +0100
Subject: [PATCH] startup: use `.hasOwnProperty` instead of `in`

Benchmarks show that `.hasOwnProperty` is faster than `in` in V8. It
makes startup ~0.5 ms faster on my computer.
---
 src/node.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/node.js b/src/node.js
index e73eb18..2cd797f 100644
--- a/src/node.js
+++ b/src/node.js
@@ -491,7 +491,7 @@
   }
 
   NativeModule.exists = function(id) {
-    return (id in NativeModule._source);
+    return NativeModule._source.hasOwnProperty(id);
   }
 
   NativeModule.getSource = function(id) {
-- 
2.7.4