It comes down to the issue of CF not being a typed language. There are advantages, and disadvantages. What exactly constitutes a boolean is sort of up in the air in CF, since the language isn't really typed in the first place, technically CF has no true boolean datatype. While 0 = false for boolean evaluations in CF, the keywords true & false actually evaluate to the strings "true" and "false", and I'm willing to bet that's how CF handles it behind the scenes as well, because I did some performance testing with the true/false keywords a while back and even in MX <cfif myVar EQ true> is much slower than <cfif myVar EQ 1>. I think the whole issue of how to implement booleans, and datatypes in general should be revisited in future versions of CF. The issue is really confused as it stands.
<cfset t = true> <cfset f = false> <cfoutput> true = #t#<br> false = #f# </cfoutput> jon ----- Original Message ----- From: "Christopher Olive" <[EMAIL PROTECTED]> To: "CF-Talk" <[EMAIL PROTECTED]> Sent: Tuesday, July 16, 2002 3:30 PM Subject: RE: Writing efficient CFIF statements > We're getting mired in semantics. We're technically both correct. > > <Dons asbestos boxers> > but we can continue the conversation, if you like. :) > </Dons asbestos boxers> > > > -----Original Message----- > From: Hal Helms [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, July 16, 2002 10:50 AM > To: CF-Talk > Subject: RE: Writing efficient CFIF statements > > > A Boolean value is a logical TRUE or FALSE. In some languages, this is > represented as 0 and 1 or 0 and non-zero, but that's an implementation > detail. > > -----Original Message----- > From: Christopher Olive [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, July 16, 2002 10:33 AM > To: CF-Talk > Subject: RE: Writing efficient CFIF statements > > > but it IS a boolean. 1 and 0 are boolean yes and no (in most > languages). > > chris olive ______________________________________________________________________ Signup for the Fusion Authority news alert and keep up with the latest news in ColdFusion and related topics. http://www.fusionauthority.com/signup.cfm FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Archives: http://www.mail-archive.com/[email protected]/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
