Landing a faster trim method. Based upon the work by Travis Hardiman and DBJDBJ. More details here: http://forum.jquery.com/topic/faster-jquery-trim Fixes #2279, #4452, and #4835.

1 files changed, 1 insertions, 14 deletions

diff --git a/src/support.js b/src/support.js
index f9429f956..befc53272 100644
--- a/src/support.js
+++ b/src/support.js
@@ -56,10 +56,7 @@
 		// (WebKit defaults to false instead of true, IE too, if it's in an optgroup)
 		optSelected: document.createElement("select").appendChild( document.createElement("option") ).selected,
 
-		parentNode: div.removeChild( div.appendChild( document.createElement("div") ) ).parentNode === null,
-
 		// Will be defined later
-		deleteExpando: true,
 		checkClone: false,
 		scriptEval: false,
 		noCloneEvent: true,
@@ -69,7 +66,7 @@
 	script.type = "text/javascript";
 	try {
 		script.appendChild( document.createTextNode( "window." + id + "=1;" ) );
-	} catch( scriptError ) {}
+	} catch(e) {}
 
 	root.insertBefore( script, root.firstChild );
 
@@ -81,15 +78,6 @@
 		delete window[ id ];
 	}
 
-	// Test to see if it's possible to delete an expando from an element
-	// Fails in Internet Explorer
-	try {
-		delete script.test;
-	
-	} catch( expandoError ) {
-		jQuery.support.deleteExpando = false;
-	}
-
 	root.removeChild( script );
 
 	if ( div.attachEvent && div.fireEvent ) {
@@ -120,7 +108,6 @@
 		document.body.appendChild( div );
 		jQuery.boxModel = jQuery.support.boxModel = div.offsetWidth === 2;
 		document.body.removeChild( div ).style.display = 'none';
-
 		div = null;
 	});