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

When you add an anonymous function as an event listener, the only time you can reasonably remove that event listener is inside the callback.

public function changeValue(event:MouseEvent, otherArguments:Object):void
{

    playSound(anote);
    trace(event.currentTarget);
    event.currentTarget.removeEventListener(MouseEvent.MOUSE_UP, arguments.callee);

}

Otherwise, you need to have a non-anonymous function in order to remove it.