CFLib.org – Common Function Library Project

Description:
Count the number of occurences of items from one list to another list.

Return Values:
Returns a number.

Example:

<cfset lst1 = "apples,organes,berries,star wars">
<cfset lst2 = "berries,coconuts,kameo">
<cfset cnt = ListCountListInList(lst1, lst2)>
<cfoutput>#cnt#</cfoutput>

Parameters:

Full UDF Source:

/**
 * Count the number of occurences of items from one list to another list.
 * Missing var statement fixed by Raymond Camden.
 * 
 * @param lst1      The first list. (Required)
 * @param lst2      The second list. (Required)
 * @return Returns a number. 
 * @author Trevor Orr (fractorr@yahoo.com) 
 * @version 1, April 7, 2006 
 */
function listCountListInList(lst1, lst2) {
    var delim   = ",";
    var cnt     = 0;
    var pos     = 0;
    var item    = "";
    
    if (arrayLen(arguments) gt 2) delim = arguments[3];
        
    for(item=1; item LTE ListLen(lst2); item = item + 1) {
        pos = listFindNoCase(lst1, ListGetAt(lst2, item));
        if(pos) cnt = cnt + 1;
    }
    
    return cnt;
}