Hi Plz try this,
I understood u have an iput like "This is a pen". and output wil be "This Is A Pen" rt?
In your code error occur a single letter came. i solved this issue. Plz try this and let me know if it is helpful.
<cffunction name="titleCase" access="public" returntype="string">
<cfargument name="str" type="string" required="yes" />
<cfset var retStr = "" />
<cfset var idx = "" />
<cfloop list="#arguments.str#" delimiters=" " index="idx">
<cfif Len(idx) gt 1>
<cfset lcasert=lcase(right(idx,Len(idx)-1))>
<cfset retStr = listAppend(retStr, ucase(left(idx,1)) & lcasert," ")>
<cfelse>
<cfset setnull=" ">
<cfset retStr = listAppend(retStr, ucase(left(idx,1)) & setnull," ")>
</cfif>
</cfloop>
<cfreturn retStr />
</cffunction>
