> -----Original Message----- > From: Barney Boisvert [mailto:[EMAIL PROTECTED] > Sent: Friday, September 30, 2005 2:03 PM > To: CF-Talk > Subject: Re: type=numeric bug > > Whoops. I meant trailing space, not trailing slash. Sorry about > that. Basically CF says "34 " is a valid numeric value, in all MX > versions. Here's a better test to illustrate: > > Surely this is a bug?
I dunno... I can see two sides of this: 1) It is a bug. It's clear that "34 " is not a number. Spaces aren't numbers! Simple. 2) It's not a bug. CF does its level best to do type conversions. "34 " is easily considered a number (via trimming) and, more importantly, can be used as a number by all (most?) CF operations. For example the following code returns "37". <cfset foo = "34 " /> <cfset faa = foo + 3 /> <cfoutput>#faa#</cfoutput> The really question, I think, is whether "IsNumber()" checks to see if something is a number or if it checks to see if something can be used as a number by CF. It's a subtle difference but explains the behavior. I've often thought that most of the "is" functions should take a second (optional) parameter called "strict". This would enable or disable a stricter parser. For example "isBoolean(Foo, true)" would only return true if the value was "true" or "false". "isDate(Foo, true)" would only return true if the value was a CF data value (not a string which looks like a date). So, in this imaginary world: <cfset foo = "34 " /> <cfoutput>#isNumeric(foo)#, #isNumeric(foo, false)#, #isNumeric(foo, true)#</cfoutput> Would return "true, true, false". Jim Davis ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Find out how CFTicket can increase your company's customer support efficiency by 100% http://www.houseoffusion.com/banners/view.cfm?bannerid=49 Message: http://www.houseoffusion.com/lists.cfm/link=i:4:219784 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
