Recently stumbled onto a blog post that pointed out the fact that you could use loaderInfo.width/height properties in junction with determining the center of the stage. This information helps a lot as I have found that IE6 will sometimes not report the correct size of the SWF in the browser on the stage properties .width [...]

This can be done several ways… here are two of the faster performance-wise ways for this:

var maxNum:int  = 5;

var inverse_i:int;

for(var i:int=maxNum; i => 0 ; i–) {

   inverse_i = maxNum - i;

   trace(inverse_i);

}

// or you can do this:

var inverse_i:int;

for(var i:int=5; i => 0 ; i–) {

   trace(inverse_i);

   inverse_i++;

}

In the event of making new children, especially like library movieclips, you could create a generic function that receives the class reference for the movieclip you wish to create. For the below example, let’s say in your library is a RedBox linked movieclip with a variety of other movieclips like it that all need to [...]

This is useful when performing a small quick function that perhaps handles an event listener callback.

var onClickNavAway:Function = function(e:Event) {

navigateToURL(new URLRequest("link.html"),"_self");

}

addEventListener(MouseEvent.CLICK, onClickNavAway);

I am going to try to post something code related everyday (maybe except for the weekend). So today I will cover a super easy tip:
When setting the same property on different objects, you can same time by instead of doing this:

movieClip1.visible = false;

movieClip2.visible = false;

movieClip3.visible = false;

Do This:

movieClip1.visible=movieClip2.visible=movieClip3.visible=false;

Easy, huh?