> The IIf thing was (and presumably still is) true, > because people typically don't actually write > equivalent CFIF/CFSET stuff. IIf evaluates all > of its arguments, which is an expensive > thing to do.
In a conversation with Mike Dinowitz shortly ago, he indicated to me that an early version of ColdFusion MX allowed him to examine the code generated by an IIF statement and that in fact it was identical to what most people would write as a comparable cfif statement, i.e. that the generated code doesn't perform an evaluation, it merely writes the variable name directly into the generated code. So if I write iif(condition,"a","b") there would be no evaluation occurring in the java bytecode (since it no longer generates the class files that let him examine generated code). I gather that if you were to place variables in those arguments, iif(condition,a,b) then it would need to perform evaluation somewhere, although this is uncommon usage as it's fairly rare that we actually want to use a variable to hold the name of another variable and then putting a variable containing the name of another variable in an IIF() would just make the whole codeblock god-awful confusing in most cases. :) Of course, this is now third hand information, so ... s. isaac dealey 434.293.6201 new epoch : isn't it time for a change? add features without fixtures with the onTap open source framework http://www.fusiontap.com http://coldfusion.sys-con.com/author/4806Dealey.htm ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Message: http://www.houseoffusion.com/lists.cfm/link=i:4:237652 Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/4 Subscription: http://www.houseoffusion.com/lists.cfm/link=s:4 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4 Donations & Support: http://www.houseoffusion.com/tiny.cfm/54
