Not only did I miss it, my regex didn't find it because it assumed a cfset. There are a few things not mentioned in the "what's new" section. This is only one of them. :(
-- Michael Dinowitz On Mon, Mar 1, 2010 at 5:07 PM, Judah McAuley <[email protected]> wrote: > > It was definitely added in CF9 but you are right, I don't see it > listed in What's New in Coldfusion 9. Curious. > > This is the reference page for this particular functionality however: > > http://help.adobe.com/en_US/ColdFusion/9.0/Developing/WS328B9130-F922-4ddb-B78B-8817CA81F8E3.html > > Cheers, > Judah > > On Mon, Mar 1, 2010 at 2:02 PM, Michael Dinowitz > <[email protected]> wrote: >> >> I've just run a regex against the cfdocs and I can't find any >> reference to this new chaining functionality. This implies it's a new >> and overlooked functionality. I wonder what else is un-noted. >> >> Assignments in loop conditions has been around for a while. If it's a >> CFLoop then you can only alter the loop operation with a condition. If >> it's a loop within a script, you can use assignments at any time. It >> allows for some 'silly' effects like this: >> >> <CFSCRIPT> >> For (i="M";i NEQ "P"; i=Chr(Asc(i)+1)) >> writeoutput(i&' '); >> </CFSCRIPT> >> >> >> >> On Mon, Mar 1, 2010 at 4:40 PM, Barney Boisvert <[email protected]> wrote: >>> >>> A quick test indicates it's new in CF9. Worth mentioning that it is >>> NOT treating the assignment as an expression, it is only allowing >>> multiple variables to be assigned to a single expression. Your second >>> test case would fail regardless of which one CF was doing, but this >>> example also fails (meaning it's the latter): >>> >>> <cfset c=(b=a+1)+1> >>> >>> You can also use assignments in loop conditions. I think Ben blogged >>> about that last summer. >>> >>> cheers, >>> barneyb >>> >>> On Mon, Mar 1, 2010 at 1:33 PM, Michael Dinowitz >>> <[email protected]> wrote: >>>> >>>> I think that I missed this in the docs. It seems that you can chain >>>> set variables >>>> >>>> <cfset a=1> >>>> <cfset c=b=a+1> >>>> >>>> This will give you a=1, b=2, c=2. >>>> >>>> On a related note, the following will fail >>>> >>>> <cfset a=1> >>>> <cfset c=b+1=a+1> >>>> >>>> The chain works as long as there is no operation except on the >>>> right-most item in the chain. >>>> >>>> This is all expected behavior in some other languages but I've never >>>> seen it in CF. Anyone know when it was added? >>>> >>>> Please make me look like a fool for missing it. :) >>>> >>>> -- >>>> Michael Dinowitz >>>> >>> >>> >>> >>> -- >>> Barney Boisvert >>> [email protected] >>> http://www.barneyb.com/ >>> >>> >> >> > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Want to reach the ColdFusion community with something they want? Let them know on the House of Fusion mailing lists Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:331231 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
