# AS3 unfair to noobs trying to use arrays!

**URL:** <https://forum.kirupa.com/t/as3-unfair-to-noobs-trying-to-use-arrays/309258>\
**Category:** flash\
**Created:** [May 11, 2010, 1:51am UTC](https://forum.kirupa.com/t/as3-unfair-to-noobs-trying-to-use-arrays/309258 "2010-05-11T01:51:34Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![JamminBill](https://avatars.discourse-cdn.com/v4/letter/j/76d3ee/32.png) [@JamminBill](https://forum.kirupa.com/u/JamminBill)\
**Post date:** [May 11, 2010, 1:51am UTC](https://forum.kirupa.com/t/as3-unfair-to-noobs-trying-to-use-arrays/309258/1 "2010-05-11T01:51:34Z")

</div>

In attempting to transition from AS2 to AS3, I am now messing around with arrays. I’ve been able to get arrays to work for me for the most part, but now I’m stumped. When I have a bunch of buttons that will make a corresponding bunch of movieclips do something (that is buttons in one array, movieclips in another), I get an error code:

ReferenceError: Error #1056: Cannot create property i on flash.display.SimpleButton.  
at arrayButtonsAS3\_fla::MainTimeline/frame1()

I didn’t get this error when the buttons were also movieclips, but I would like to use regular old buttons from time to time; especially when converting older interactives from AS2 to AS3: something that is becoming occasionally necessary.

Here is the code of a little test animation I’m doing:

var aButtons:Array=new Array(btnZero,btnOne,btnTwo,btnThree,btnFour,btnFive,btnSix,btnSeven,btnEight,btnNine,btnTen,btnEleven,btnTwelve,btnThirteen,btnFourteen);  
var aSquares:Array=new Array(mcSquare0,mcSquare1,mcSquare2,mcSquare3,mcSquare4,mcSquare5,mcSquare6,mcSquare7,mcSquare8,mcSquare9,mcSquare10,mcSquare11,mcSquare12,mcSquare13,mcSquare14);  
var index:Number;  
var indexNumber:Number;

for (var i:Number=0; i\<aButtons.length; i++) {  
if (this.aButtons.length==this.aSquares.length) {  
index=i;  
aButtons[index].i=index;  
for (var j:Number = 0; j\<aSquares.length; j++) {  
if (this.i==j) {  
openClip(j);  
}  
}  
}  
}  
function openClip(num):void{  
trace(aButtons[num].name);  
trace(aSquares[num].name);  
}