Create random list in ColdFusion (Randomizer)

February 12, 2008 at 7:21 am 1 comment


Looking for a way to generate a random list of values in ColdFusion?

The following code generates a random list from myList and puts the random values in myNewList.

 <cfscript>
            myList = “1,2,3”;
            myNewList = “”;
            listLength = listLen( myList );
            while( listLength neq 0 ) {
                        myIndex = randRange( 1, listLength );
                        myItem = listGetAt( myList, myIndex );
                        myNewList = listAppend( myNewList, myItem );
                        myList = listDeleteAt( myList, myIndex );
                      
  listLength = listLen( myList );
            }
</cfscript>

I’ve kept the demo simple and only had 3 items in the list (myList = “1,2,3”) obviously you could use this with a much bigger list.

I have not benchmarked any of this, so I can’t say how it would hold up with a very large list. Any comments to improve are welcome, or if you have bench marked this, let us know 😉

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Entry filed under: ColdFusion. Tags: , .

Introducing Rob from JustWeb clickfind is on transworldnews.com

1 Comment Add your own

  • 1. Bob Beecher  |  September 7, 2013 at 2:04 pm

    So much simpler than others I looked at. I love it.

    Like

    Reply

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