KineticJS - Performance Difference Between Kinetic.Group.listening() and Individual Kinetic.Node.listening()

问题

Is there any performance difference between this:

var rect1 = new Kinetic.Rect({ listening: false }),
    rect2 = new Kinetic.Rect({ listening: false }),
    group = new Kinetic.Group;

group.add( rect1 );
group.add( rect2 );

... and this:

var rect1 = new Kinetic.Rect,
    rect2 = new Kinetic.Rect,
    group = new Kinetic.Group({ listening: false });

group.add( rect1 );
group.add( rect2 );

If so, why?

来源：https://stackoverflow.com/questions/24592127/kineticjs-performance-difference-between-kinetic-group-listening-and-individ