jQuery.extend({
speed: function( speed, easing, fn ) {
- var opt = speed && typeof speed === "object" ? speed : {
+ var opt = speed && typeof speed === "object" ? jQuery.extend({}, speed) : {
complete: fn || !fn && easing ||
jQuery.isFunction( speed ) && speed,
duration: speed,
};
opt.duration = jQuery.fx.off ? 0 : typeof opt.duration === "number" ? opt.duration :
- jQuery.fx.speeds[opt.duration] || jQuery.fx.speeds._default;
+ opt.duration in jQuery.fx.speeds ? jQuery.fx.speeds[opt.duration] : jQuery.fx.speeds._default;
// Queueing
opt.old = opt.complete;