comparing two lists in coldfusion

check this out
https://www.experts-exchange.com/questions/22573882/Compare-List-elements-to-each-other.html

<cfset List1="1,2,3,4,5,6,7,8,9">
<cfset List2="1,10,11,12,1,4">
<cfset List3  "">
<cfloop list="#List1#" index="l_key">
       <cfif not ListContainsNoCase(List2,key)>      
              <cfset List3=ListAppend(List3,key)>
       </cfif>
</cfloop>
<cfdump var="#List3#">

hey lhp2000... thats another take on it ;)  creating a new list..

I guess I should have tested it BEFORE posting :)

This one actually works..

<!--- returns all elements of list one minus the elements of list two --->
<!--- #listMinus("1,2,3,3,3,4,5", "3,5,6")#  returns 1,2,4 --->
<cffunction name="listMinus" access="public" output="false">
   <cfargument name="listOne"  required="true" default="" />
   <cfargument name="ListTwo"  required="false" default="" />
 
   <cfset var result = "">
   <cfset var kk = "">
    
   <cfloop index="kk" list="#arguments.listOne#">
     <cfif listFindNoCase(arguments.listTwo,kk) eq 0>
       <cfset result = listAppend(result,kk)>
     </cfif>
   </cfloop>
    
   <cfreturn result>
</cffunction>
 
 
<cfoutput>#listMinus("1,2,3,3,3,4,5", "3,5,6")#</cfoutput>

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@NYGiantsFan ?  ping...

timeout... tahahha

Thanks, although I figured it out on my own.  Thanks all.