Question

I have a problem with my cfml code. The ListAppend() function doesn’t seem to be working.

Here is the code in my .cfm page:

<cfset fruitList="apple, orange, banana">

<cfoutput>
    fruitList before: #fruitList#<br>
</cfoutput>

<cfset temp = ListAppend(fruitList, "kiwi")>
<cfoutput>
    fruitList after: #fruitList#<br>
</cfoutput>

But I always get this output:

fruitList before: apple, orange, banana

fruitList after: apple, orange, banana

The same goes for ListPrepend() and ListInsertAt(). Why does this happen?

Any help is appreciated.

Answer 1

listAppend() returns the new list (lists are nothing but strings, which ColdFusion passes by value) so in order for you to see appended value, you would need to use:

<cfset fruitlist = ListAppend(fruitList, "kiwi") />