how to check if elements of one list exist in another list in coldfusion

 if there are 2 lists, and if we need to check elements of one list exists in another list. Then you can use the following code :

<cfset list1 = "Red,Blue,Green,Yellow">

<cfset list2 = "Blue,White,Black">

<cfset isfound = false>

<cfloop list="#list1#" index="item">

    <cfif ListFind(list2, item)>

        <cfset isfound = true>

        <cfbreak>

    </cfif>

</cfloop>

<cfif isfound >

    <cfoutput>At least one item from list1 exists in list2</cfoutput>

<cfelse>

    <cfoutput>No items from list1 found in list2</cfoutput>

</cfif>