Contents > Developing ColdFusion MX Applications > Writing and Calling User-Defined Functions > A User-defined function example > Defining the function using the cffunction tag

Defining the function using the cffunction tag

The following code replaces CFScript statements with their equivalent CFML tags.

<cffunction name="TotalInterest">
   <cfargument name="principal" required="Yes">
   <cfargument name="annualPercent" required="Yes"> 
   <cfargument name="months" required="Yes">
   <cfset years = 0>
   <cfset interestRate = 0>
   <cfset totalInterest = 0>
   <cfset principal = trim(principal)>
   <cfset principal = REReplace(principal,"[\$,]","","ALL")>
   <cfset annualPercent = Replace(annualPercent,"%","","ALL")>
   <cfset interestRate = annualPercent / 100>
   <cfset years = months / 12>
   <cfset totalInterest = principal*
         (((1+ interestRate)^years)-1)>
   <cfreturn DollarFormat(totalInterest)>
</cffunction>

Contents > Developing ColdFusion MX Applications > Writing and Calling User-Defined Functions > A User-defined function example > Defining the function using the cffunction tag

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