as3 adding commas to dynamic text numbers on stage

Question

So I have a dynamic text field on stage (stage_clickCounter) where every time I click on said button the variable clickCounter goes up by 1.

I'm using this piece of code to display the numbers on screen:

stage_clickCounter.text = numberOfClicks.toString();

The numbers show up fine and all, but once I get to 1,000 clicks it shows up without the comma

1000//shows this on dynamic text field
1,000//would much rather prefer this

How can I do this? I have numbers and punctuations embedded into the font already.

Answer 1

For positive integers:

function addComma(num:uint):String{
    if(num == 0) {
        return "0";
    }
    var str:String="";
    while(num>0){
        var tmp:uint=num%1000;
        str=(num>999?","+(tmp<100?(tmp<10?"00":"0"):""):"")+tmp+str;
        num=num/1000;
    }
    return str;
}

Usage:

trace(addComma(1000999333)); //output:1,000,999,333

Edit:

For negative and positive integers:

function addComma(num:int):String{
    if(num == 0) {
        return "0";
    }
    var str:String="";
    var sign:String=num>0?"":"-";
    num=Math.abs(num);
    while(num>0){
        var tmp:int=num%1000;
        str=(num>999?","+(tmp<100?(tmp<10?"00":"0"):""):"")+tmp+str;
        num=num/1000;
    }
    return sign+str;
}