Event Listener trick using bracket notation

//Event Listener Trick using bracket notation:

//Standard way:--------------------------------------------------------------------

public function addEventListeners():void
{
    someObject_01.addEventListener(Event.ENTER_FRAME, someFunction_01);
    someObject_02.addEventListener(Event.ENTER_FRAME, someFunction_02);
    someObject_03.addEventListener(Event.ENTER_FRAME, someFunction_03);
}

public function removeEventListeners():void
{
    someObject_01.removeEventListener(Event.ENTER_FRAME, someFunction_01);
    someObject_02.removeEventListener(Event.ENTER_FRAME, someFunction_02);
    someObject_03.removeEventListener(Event.ENTER_FRAME, someFunction_03);
}
//---------------------------------------------------------------------------------


//Using bracket notation-----------------------------------------------------------

public function setEventListeners(add:Boolean):void
{
    var XXX:String;
    if(add ){XXX = "addEventListener"   };
    if(!add){XXX = "removeEventListener"};
    someObject_01[XXX](Event.ENTER_FRAME, someFunction_01);
    someObject_02[XXX](Event.ENTER_FRAME, someFunction_02);
    someObject_03[XXX](Event.ENTER_FRAME, someFunction_03);
}
//---------------------------------------------------------------------------------

Bound Function AKA CallBacks AS3

//Another weird AS3 Syntax thing I did not know was possible: private function takeCallback(boundFunction:Function):void { trace("calling boundFunction / callback"); boundFunction(); }//takeCallback //Call Function and pass it an inlined function. takeCallback( function():void { trace("Function Speaking") } );

Breaking Out of Non-Looping Statements:

notAloop:
{
    trace("hello 1");
    break notAloop;
    trace("hello 2");
    trace("hello 3");
}
trace("parenEnd");

do {
    trace ("do this once.");
    break;
    trace ("don't do this.");
}while ( false );

//output:
/*
hello 1
parenEnd
do this once.
*/

A few new cool things I found I can do with actionScript syntax.