Contents > Developing ColdFusion MX Applications > Writing and Calling User-Defined Functions > Creating user-defined functions > Creating functions using CFScript

Creating functions using CFScript

You use the function statement to define the function in CFScript. CFScript function definitions have the following features and limitations:

• The function definition syntax is familiar to anyone who uses JavaScript or most programming languages.
• CFScript is efficient for writing business logic, such as expressions and conditional operations.
• CFScript function definitions cannot include CFML tags.

The following is a CFScript definition for a function that returns a power of 2:

<cfscript>
function twoPower(exponent) {
      return 2^exponent; 
}
</cfscript>

For more information on how to use CFScript to define a function, see Defining functions in CFScript.

Contents > Developing ColdFusion MX Applications > Writing and Calling User-Defined Functions > Creating user-defined functions > Creating functions using CFScript

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