Yep, for anyone reading along:

"Returns Yes, for a nonzero value; No for zero, false, and no Boolean
values, and an empty string ("")."

http://www.cfquickdocs.com/cf8/?getDoc=YesNoFormat

mxAjax / CFAjax docs and other useful articles:
http://www.bifrost.com.au/blog/



2009/10/15 DURETTE, STEVEN J (ATTASIAIT) <[email protected]>:
>
> Cool, I didn't know that YesNoFormat("") resolved to no.
>
> -----Original Message-----
> From: James Holmes [mailto:[email protected]]
> Sent: Thursday, October 15, 2009 9:38 AM
> To: cf-talk
> Subject: Re: cfprocparam - null setting
>
>
> I'd use YesNoFormat() as I think it's more readable than NOT len(),
> but the result is the same.
>
> mxAjax / CFAjax docs and other useful articles:
> http://www.bifrost.com.au/blog/
>
> 2009/10/15 DURETTE, STEVEN J (ATTASIAIT) <[email protected]>:
>>
>> You can only pass in things that resolve to true/false, zero/one,
>> yes/no, etc.
>>
>> Using not len resolves to 0 (false) if there is a length and 1 (true)
> if
>> there is no length.
>>
>>
>>
>> -----Original Message-----
>> From: Scott Stewart [mailto:[email protected]]
>> Sent: Thursday, October 15, 2009 9:05 AM
>> To: cf-talk
>> Subject: RE: cfprocparam - null setting
>>
>>
>> Can you pass anything other than true/false to the null parameter in
>> cfprocparam?
>>
>> I know you can in cfqueryparam, but I was under the impression than in
>> cfprocparam it's strictly true/false
>
>
>
> 

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