CFLib.org – Common Function Library Project

Description:
Filters a list so that just numeric entries are returned. Based on isNumericList by John Rice.

Return Values:
Returns a string.

Example:

<cfset l = "3,4,6,2,d,4,2,gg,2,1,qqwqw,21,12,gg">
<cfset fl = justNumericList(l)>
<cfoutput>#fl#</cfoutput>

Parameters:

Full UDF Source:

/**
 * Filters a list so that just numeric entries are returned.
 * v2 changes by James Moberg
 * 
 * @param nList      List to filter. (Required)
 * @param strDelim      List delimiter. Defaults to a comma. (Optional)
 * @return Returns a string. 
 * @author Raymond Camden (ray@camdenfamily.com) 
 * @version 2, April 1, 2010 
 */
function justNumericList(nList) {
   var intIndex = 0;
   var aryN = arrayNew(1);
   var strDelim = ",";
   var result = arrayNew(1);
   if (arrayLen(arguments) gte 2) strDelim = arguments[2];
   aryN = listToArray(nlist,strDelim);
   for (intIndex=1;intIndex LTE arrayLen(aryN);intIndex=intIndex+1) {
    if (not compare(val(aryN[intIndex]),aryN[intIndex])) arrayAppend(result, aryN[intIndex]);
   }
   return arrayToList(result,strDelim);
}