removing event listener

Question

I have learned this method of passing values with addEventLister. Here is the code:

for (var i:uint = 0; i < asteroids.length; i++)
{

     asteroids[i].x = M         


        

Answer 1

Why don't you declare the function like normal, rather than in the parameter? You can do the following:

for (var i:uint = 0; i < asteroids.length; i++)
{

     asteroids[i].x = Math.random() * 450;
     asteroids[i].y = Math.random() * 450;
     asteroids[i].addEventListener(MouseEvent.MOUSE_UP, onMouseUp);
     });

}

public function onMouseUp(e:MouseEvent) {
    changeValue(e, otherArguments);
}

public function changeValue(event:MouseEvent, otherArguments:Object):void
{
    playSound(anote);
    trace(event.currentTarget);

}

You can remove it as follows:

asteroids[index].removeEventListener(MouseEvent.MOUSE_UP, onMouseUp)