| ISCUSTOMFUNCTION | |||
| Description
Determines whether a name represents a custom function. |
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| Returns
True, if name can be called as a custom function; False, otherwise. |
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| Category
Decision functions |
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Function syntaxIsCustomFunction(name) |
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| Parameters
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| Usage
The IsCustomFunction function returns True for any function that can be called as a custom function, including functions defined using CFScript function declarations and cffunction tags, and functions that are ColdFusion component methods. For CFC methods, you must first instantiate the component.
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Example<h3>IsCustomFunction Example</h3>
<cfscript>
function realUDF() {
return 1;
}
</cfscript>
<cfset X = 1>
<!--- Example that fails existence test --->
<cfif IsDefined("Foo") AND IsCustomFunction(Foo)>
Foo is a UDF.<br>
</cfif>
<!--- Example that passes existence test but fails IsCustomFunction --->
<cfif IsDefined("X") AND IsCustomFunction(X)>
X is a UDF.<br>
</cfif>
<!--- Example that passes both tests--->
<cfif IsDefined("realUDF") AND IsCustomFunction(realUDF)>
realUDF is a function.<br>
</cfif>
<!--- Example using a CFC, defined in TestCFC.cfc--->
<cfobject component="TestCFC" name="myTestCFCobject">
<CFIF IsDefined("myTestCFCobject.testFunc") AND
IsCustomFunction(myTestCFCobject.testFunc)>
myTestCFCobject.testFunc is a function.
</CFIF>
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| NAME | |