<cffunction name="applyFunction">
<cfargument name="function_name">
<cfargument name="value">
<cfreturn arguments.function_name(arguments.value)>
</cffunction>
<cffunction name="double">
<cfargument name="input" type="numeric">
<cfreturn arguments.input * 2>
</cffunction>
<cfset result = applyFunction(double, 3)>
<cfoutput>
Double Result: #result#
</cfoutput>