Whatever message this page gives is out now! Go check it out!
IsClosure
Last update:
May 18, 2026
Description
Determines whether a value or expression references a function defined via a function expression, as opposed to a function statement.
Returns
True, if the value represents a function expression; otherwise False.
Category
Syntax
isClosure(object)See also
Other decision functions.
History
ColdFusion (2018 release): Introduced named parameters.
ColdFusion 10: Added this function.
Parameters
Parameter | Description |
object | A value. |
Usage
Use this function to determine whether the value or expression represents a function defined via a function expression.
Example
<cfscript>
// Non-closure
function1 = 'Hello_World';
writeoutput("Is it closure: " & isClosure(function1) & "<br>");
// Closure
function2 = function () {};
writeoutput("Is it closure: " & isClosure(function2));
</cfscript>Output
Is it closure: NO
Is it closure: YES
Is it closure: YES
We're glad. Tell us how this page helped.
We're sorry. Can you tell us what didn't work for you?
Share additional feedback to help us improve.
0/255
|
