Last updated on
Apr 27, 2021 06:03:41 AM GMT
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Also Applies to ColdFusion
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
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