Made sure that a null speed doesn't get passed around. Patch from daltonlp. Fixes #5557.

b776e2b7 · jeresig · b24da33f · b776e2b7
Commit b776e2b7 authored Dec 05, 2009 by jeresig
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fx.js src/fx.js +1 -1

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--- a/src/fx.js
+++ b/src/fx.js
@@ -219,7 +219,7 @@ jQuery.each({
 jQuery.extend({
 	speed: function(speed, easing, fn) {
-		var opt = typeof speed === "object" ? speed : {
+		var opt = speed && typeof speed === "object" ? speed : {
 			complete: fn || !fn && easing ||
 				jQuery.isFunction( speed ) && speed,
 			duration: speed,