In the example he gave there would be a difference between the two, because
the value of myvar was 2, not true. the "EQ TRUE" piece is telling CF to
evaluate the value of myvar against the boolean value "TRUE", which since it
is in fact equal to 2 not True.
DC
----- Original Message -----
From: "Dave f" <[EMAIL PROTECTED]>
To: "CF-Talk" <[EMAIL PROTECTED]>
Sent: Wednesday, April 18, 2001 09:27
Subject: Re: <cfif myvar IS true> vs <cfif myvar>
>
> But the original query said there was a diff between <cfif myvar> and
<cfif
> myvar eq TRUE>, implying that some non-zero values return FALSE, or at
least
> NOT TRUE.
>
>
> ----- Original Message -----
> From: "Tim Painter" <[EMAIL PROTECTED]>
> To: "CF-Talk" <[EMAIL PROTECTED]>
> Sent: Wednesday, April 18, 2001 7:28 AM
> Subject: Re: <cfif myvar IS true> vs <cfif myvar>
>
>
> > You're right. My bad....
> >
> > I think what it means is that if you say
> >
> > <cfif myvar>
> > CF is basically saying "Does myvar have any value" so in essence, 0
would
> > be FALSE and anything else would be TRUE
> > ----- Original Message -----
> > From: "Rich Wild" <[EMAIL PROTECTED]>
> > To: "CF-Talk" <[EMAIL PROTECTED]>
> > Sent: Wednesday, April 18, 2001 7:04 AM
> > Subject: RE: <cfif myvar IS true> vs <cfif myvar>
> >
> >
> > > > CF equates TRUE as being the number 1 and False as being 0. So if
you
> > > > specify myvar to being anything other than 0 or 1, then the
> > > > variable myvar
> > > > is considered neither true nor false.
> > >
> > > With respect, this isn't actually true...
> > >
> > > Try this:
> > >
> > > <cfset this = 2>
> > >
> > > <cfif this>
> > > TRUE
> > > <cfelse>
> > > FALSE
> > > </cfif>
> > >
> > > evaluates to TRUE.
> > >
> > > If a numeric value is anything other than 0 then CF equates it to
TRUE.
> > This
> > > also includes negative values... so -1 will also equate to TRUE.
> > >
> > >
> > > -------------------------------------------------------
> > > Rich Wild
> > > Senior Web Designer
> > >
> > > -------------------------------------------------------
> > > e-mango.com ltd Tel: 01202 587 400
> > > Lansdowne Place Fax: 01202 587 401
> > > 17 Holdenhurst Road
> > > Bournemouth Mailto:[EMAIL PROTECTED]
> > > BH8 8EW, UK http://www.e-mango.com
> > > -------------------------------------------------------
> > > This message may contain information which is legally
> > > privileged and/or confidential. If you are not the
> > > intended recipient, you are hereby notified that any
> > > unauthorised disclosure, copying, distribution or use
> > > of this information is strictly prohibited. Such
> > > notification notwithstanding, any comments, opinions,
> > > information or conclusions expressed in this message
> > > are those of the originator, not of e-mango.com ltd,
> > > unless otherwise explicitly and independently indicated
> > > by an authorised representative of e-mango.com ltd.
> > > -------------------------------------------------------
> > >
> > >
> > >
> > >
> > > > -----Original Message-----
> > > > From: Tim Painter [mailto:[EMAIL PROTECTED]]
> > > > Sent: 18 April 2001 11:58
> > > > To: CF-Talk
> > > > Subject: Re: <cfif myvar IS true> vs <cfif myvar>
> > > >
> > > >
> > > > Bert,
> > > >
> > > > CF equates TRUE as being the number 1 and False as being 0. So if
you
> > > > specify myvar to being anything other than 0 or 1, then the
> > > > variable myvar
> > > > is considered neither true nor false.
> > > >
> > > > When you say <cfif myvar> it it is the same as saying <cfif
> > > > myvar is TRUE>
> > > > or <cfif myvar eq 1>
> > > > likewise, <cfif NOT myvar> is saying <cfif myvar is FALSE>
> > > > or <cfif myvar
> > > > eq 0>
> > > >
> > > >
> > > > ----- Original Message -----
> > > > From: "Bert" <[EMAIL PROTECTED]>
> > > > To: "CF-Talk" <[EMAIL PROTECTED]>
> > > > Sent: Wednesday, April 18, 2001 6:19 AM
> > > > Subject: <cfif myvar IS true> vs <cfif myvar>
> > > >
> > > >
> > > > > There seems to be a difference in the outcome of <cfif
> > > > myvar IS true> and
> > > > <cfif myvar>, when myvar is a number but neither 0 nor 1.
> > > > >
> > > > > Is this a feature to be used, or a bug, or have i missed
something?
> > > > >
> > > > > Bert
> > > > >
> > > > > ps save the code below as trueorfalse.cfm to see what i mean:
> > > > >
> > > > > <cfparam name="myvar" default="2">
> > > > >
> > > > > <cfoutput>
> > > > >
> > > > > <b>#myvar#:</b>
> > > > > <cfif myvar IS true>
> > > > > myvar IS true
> > > > > <cfelseif myvar IS false>
> > > > > myvar IS false
> > > > > <cfelse>
> > > > > cfelse (i.e. NOT "myvar IS true" OR "myvar IS false")
> > > > > </cfif>
> > > > > <br>
> > > > >
> > > > > <b>#myvar#:</b>
> > > > > <cfif myvar>
> > > > > myvar
> > > > > <cfelseif NOT myvar>
> > > > > NOT myvar
> > > > > <cfelse>
> > > > > cfelse (i.e. NOT "cfif myvar" OR "cfif NOT myvar")
> > > > > </cfif>
> > > > >
> > > > > <form action="trueorfalse.cfm" method="post">
> > > > > <input type="text" name="myvar" value="#myvar#">
> > > > > <input type="Submit">
> > > > > </form>
> > > > >
> > > > > </cfoutput>
> > > > >
> > > > >
> > > > >
> > > >
> > >
> >
>
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