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parameterExists

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

parameterExists(name)

returns boolean

Argument Reference

Name	Type	Required	Default	Description
parameter	string	Yes		A syntactically valid parameter name.

Tag Syntax

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

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