From: John Resig <jeresig@gmail.com>
Date: Mon, 20 Aug 2007 06:29:41 +0000 (+0000)
Subject: Just pushed some major speed improvements through for $.each() - we're now seeing... 
X-Git-Url: http://git.asbjorn.biz/?p=jquery.git;a=commitdiff_plain;h=f0353e89abf6643e5a88a649887a71a9ebd973d9

Just pushed some major speed improvements through for $.each() - we're now seeing a 2x speed improvement over 1.1.3. Some crude results can be found here: dev.jquery.com/~john/ticket/each/
---

diff --git a/src/jquery/jquery.js b/src/jquery/jquery.js
index ff33034..5ffccc5 100644
--- a/src/jquery/jquery.js
+++ b/src/jquery/jquery.js
@@ -1394,9 +1394,15 @@ jQuery.extend({
 		if ( obj.length == undefined )
 			for ( var i in obj )
 				fn.apply( obj[i], args || [i, obj[i]] );
-		else
+		else if ( args ) {
 			for ( var i = 0, ol = obj.length; i < ol; i++ )
-				if ( fn.apply( obj[i], args || [i, obj[i]] ) === false ) break;
+				if ( fn.apply( obj[i], args ) === false ) break;
+
+		// A special, fast, case for the most common use of each
+		} else
+			for ( var i = 0, ol = obj.length, val = obj[0]; 
+				i < ol && fn.call(val,i,val) !== false; val = obj[++i] );
+
 		return obj;
 	},