Use the native isArray whenever possible. See perf test by jdalton here: http://jsper...

diff --git a/src/core.js b/src/core.js
index d4a0e61bb7dc270e4d95cbb534f3b2e0540fa890..6e1f74520d9c0fa8407e67b1d9ab16d1e6e7dd83 100644 (file)
--- a/src/core.js
+++ b/src/core.js
@@ -441,7 +441,7 @@ jQuery.extend({
                return jQuery.type(obj) === "function";
        },
 
-       isArray: function( obj ) {
+       isArray: Array.isArray || function( obj ) {
                return jQuery.type(obj) === "array";
        },