parameterExists

Determines whether a parameter exists. ColdFusion does not evaluate the argument.

parameterExists(name) → returns boolean

The parameterExists function is DEPRECATED as of ColdFusion 6

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Argument Reference

parameter string
Required

A syntactically valid parameter name.

Compatibility

ColdFusion:

DEPRECATED since version 6 This function is deprecated, but is still available for backward compatibility. Use StructKeyExists() or IsDefined() functions instead.

Examples
Sample code invoking the parameterExists function 

<cfif parameterExists(FORM.myString)> 
 <P>Using parameterExists, we have shown that the FORM field 'myString' now exists. 
 </cfif>

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