While the while issue of DE verses staged quotes is an important one, the speed
difference between IIF() and CFIF in CF 5 and earlier is separate from that. DE adds
very little overhead as it's just doing a fast replace on double quotes as well as
surrounding its argument with double quotes. This is very little processing all in
all. The problem has always been IIF() itself.
The fact that IIF() and CFIF are the same speed in CFMX shows that the underlying
comparison code for both is either the same thing or working the same way.
> I do strongly belive using the IIF right wouldnt be any slower than CFIF as
> well
> Eg.. The right usage
> <cfloop index="x" from="1" to="10">
> #x#.#IIF(x mod 2,"'odd'","'even'")#<br>
> </cfloop>
>
> Improper usage which is any day going to be slower than CFIF
> <cfloop index="x" from="1" to="10">
> #x#.#IIF(x mod 2,DE("odd"),DE("even")#<br>
> </cfloop>
>
>
> Joe
> Certified Advanced ColdFusion Developer
> [EMAIL PROTECTED]
>
> -----Original Message-----
> From: Michael Dinowitz [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, July 16, 2002 1:28 PM
> To: CF-Talk
> Subject: Re: Writing efficient CFIF statements
>
>
> Actually, the main problem with using IIF() now is that few people know how
> to use it right. The double evaluation issue, using DE vs. double quoting,
> etc. I'm going to have to revise my paper on it and get it out there again.
> :)
> http://www.fusionauthority.com/iif.cfm
>
>
> > I wouldn't declare it dead for the sake of readability. That above
> > anything is a good reason not to use it.
> >
> > ~Todd
> >
> > On Tue, 16 Jul 2002, Michael Dinowitz wrote:
> >
> > > I really wish that people using my documents (originally posted in
> issues of FA) put down where they got the information from. I see chunks of
> information on that page taken directly from me.
> > > Now as for IIS() under MX. I've tested it heavily and there is literally
> no difference speed wise between IIF and CFIF. Counting on the run, you can
> see the numbers change in the .001 millisecond range which is nothing at
> all, especially as the numbers change for both and there is no clear
> pattern.
> > > That being said, I declare that the "best practice" of not using IIF()
> is dead as of MX.
> > >
> >
> > --
> > ============================================================
> > Todd Rafferty ([EMAIL PROTECTED]) - http://www.web-rat.com/ |
> > Team Macromedia Volunteer for ColdFusion |
> > http://www.macromedia.com/support/forums/team_macromedia/ |
> > http://www.flashCFM.com/ - webRat (Moderator) |
> > http://www.ultrashock.com/ - webRat (Back-end Moderator) |
> > ============================================================
> >
> >
>
>
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