Any better way to loop through a collection (struct) in CFML?

Question

Please have a look at the code block below:

<cfset index = 0 />
<cfloop collection="#anotherPerson#" item="key" >
    <cfset index = index+1 />
    <cfoutput> 
         #key# : #anotherPerson[key]# 
         <cfif index lt ArrayLen(structKeyArray(anotherPerson))> , </cfif>
    </cfoutput>
</cfloop>

<!--- Result 

   age : 24 , haar : Blondes haar , sex : female , ort : Hanau

---->

Now can you please tell me how could I achieve the same result without setting an index outside and incrementing it inside the loop? If you notice carefully, I had to write two more cfset tag and one cfif tag with expensive code just to avoid a comma (,) at the end of the collection!

Answer 1

Some friends provided two different solutions. Both are efficient and elegant!

Solution 1

<cfset isFirst = true />
<cfloop collection="#anotherPerson#" item="key" >
    <cfif isFirst>
        <cfset isFirst = false />
    <cfelse> 
        ,   
    </cfif> 
    <cfoutput> 
       #key# : #anotherPerson[key]# 
    </cfoutput>
</cfloop>

Solution 2

<cfset resultList = "" />
<cfloop collection="#anotherPerson#" item="key" >
    <cfset resultList = ListAppend(resultList, "#key# : #anotherPerson[key]#" ) />
</cfloop>

Cheers!