Barney, I love the 1XYZ-N technique for the length constraint That's
damn brilliant!

......................
Ben Nadel
Certified Advanced ColdFusion MX7 Developer
www.bennadel.com
 
Need ColdFusion Help?
www.bennadel.com/ask-ben/

-----Original Message-----
From: Barney Boisvert [mailto:[EMAIL PROTECTED] 
Sent: Wednesday, July 25, 2007 6:01 PM
To: CF-Talk
Subject: Re: Generate Random Number 1000 - No Duplicates

I haven't tested this (just wrote it in the email), but it should be
close:

function getRandomNumberArray(length, count) {
  var min = "1" + repeatString("0", length - 1);
  var max = repeatString("9", length);
  var uniquer = structNew();
  var result = arrayNew(1);
  var num = "";
  while (arrayLen(result) LT count) {
    num = randRange(min, max);
    if (NOT structKeyExists(uniquer, num)) {
      uniquer[num] = "";
      arrayAppend(result, num);
    }
  }
  return result;
}

cheers,
barneyb

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