Convert an signed int to 8 digit hex in flex - actionscript-3

Question

How can i convert a type int into 8 digit hex decimal in flex
I need a function similiar in c# [ ToString("X8") ]. This function does the job in c#.
But what is the option in flex ?

Answer 1

As described in the docs, it's pretty much the same:
var myInt:int = 255;
var hex:String = myInt.toString(16);
trace(hex); //outputs "ff"
See http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/int.html#toString()
If it's colors you're after: the docs describe how to handle that case too.
There is however no built-in way to add the leading zeros. You can use a method like this one to do that:
public function pad(s:String, pattern:String="0", minChars:int=8):String {
while (s.length < minChars) s = pattern + s;
return s;
}
trace(pad(hex)); //000000ff

Answer 2

Note: this is for 6 digit hex colors but could easily be modified to any number of hex digits.
Found a lot of ways of outputting padded hex values that relied heavily on string padding.
I wasn't really happy with any of those so this is what I came up with: (as a bonus it fits on one line) You could even shorten it by removing the toUpperCase() call as case is really irrelevant.
"0x"+ (i+0x1000000).toString(16).substr(1,6).toUpperCase()
If you want to floor or ceiling that to black and white and put that in a function:
public static function toHexColor(i:Number):String {
return i<0 ? "0x000000" : i>0xFFFFFF ? "0xFFFFFF" : "0x"+ (i+0x1000000).toString(16).substr(1,6).toUpperCase() ;
}
Here is a more expanded version with comments:
public static function toHexColor(i:Number):String {
//enforce ceiling and floor
if(i>0xFFFFFF){ return "0xFFFFFF";}
if(i<0){return "0x000000";}
//add the "magic" number
i += 0x1000000;
//append the 0x and strip the extra 1
return "0x"+ i.toString(16).substr(1,6).toUpperCase();
}