Your code leads to the same invalid value.
When you don't pass any arguments to the Date constructor, you get a Date representing "right now", so 'date' is 29 because today is the 29th. When you then set the fullYear to 1987 and then month to 1 (February), you get the invalid date Feburary 29, 1987 which is intepreted as March 1, 1987. You then set the 'date' to 3 and get March 3, 1987. In more detail, here is how I think the Player is executing your code on July 29, 2008 (today): var d:Date = new Date; // d represents July 29, 2008 // d.fullYear is 2008 // d.month is 6 (July) // d.date is 29 d.fullYear = 1987; // d represents July 29, 1987 // d.fullYear is 1987 // d.month is 6 (July) // d.date is 29 d.month = 1; // (February) // d represents February 29, 1987 -- OOPS! This is invalid but "equivalent" to March 1, 1987, so now // d.fullYear is 1987 // d.month is 2 (March) // d.date is 1 d.date = 3; // d represents March 3, 1987 // d.fullYear is 1987 // d.month is 2 (March) // d.date is 3 Please go ahead and file a bug against Flex and we'll transfer it into the Player team's bugbase for them to determine whether this behavior is consistent with the Ecmascript spec or not. Be sure to indicate that you are executing this code on July 29, 2008 because the fact that today is the 29th is crucial. Gordon Smith Adobe Flex SDK Team ________________________________ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of aceoohay Sent: Tuesday, July 29, 2008 3:09 PM To: [email protected] Subject: [flexcoders] Re: Flex 2.01 date problem What you have shown is that if you use invalid data (February 29th of a non leap year) you get bad results. What I showed (February 3rd of a non leap year) was that if I use valid data I get invalid results. I truly believe this is a bug. Paul --- In [email protected] <mailto:flexcoders%40yahoogroups.com> , "Gordon Smith" <[EMAIL PROTECTED]> wrote: > > A simpler test is > > > > var d:Date = new Date(1987, 1, 29); > trace(d); > > > > This traces "Sun Mar 1 00:00:00 GMT-0800 1987", presumably because 1987 > didn't have a February 29. So I doubt waht you're seeing is a bug. (I'd > have to check the Ecmascript spec to say for sure.) But it means that > using Date correctly is much trickier than I ever realized! > > > > Gordon Smith > > Adobe Flex SDK Team > > > > ________________________________ > > From: [email protected] <mailto:flexcoders%40yahoogroups.com> [mailto:[email protected] <mailto:flexcoders%40yahoogroups.com> ] On > Behalf Of Matt Chotin > Sent: Tuesday, July 29, 2008 2:31 PM > To: [email protected] <mailto:flexcoders%40yahoogroups.com> > Subject: Re: [flexcoders] Re: Flex 2.01 date problem > > > > Try setting the date before you set the month? I think setting the month > while the current day is later than 28 is going to roll the month on you > potentially? Just by reording that I got it to work. When I tried to set > the Date's time to 0 to avoid it using the current date that didn't seem > to fix things... > > It does feel like an odd error though. Might be worth filing a Flash > Player bug at http://bugs.adobe.com/jira. <http://bugs.adobe.com/jira.> <http://bugs.adobe.com/jira. <http://bugs.adobe.com/jira.> > > Though would be good to test JavaScript to see if it behaves the same. > > Matt > > On 7/29/08 2:14 PM, "aceoohay" <[EMAIL PROTECTED] > <mailto:pauls%40compuace.com> > wrote: > > Just as a test I used the following; > > dtTest = new Date(1987,1,3,0,0,0,0); > > This returned; > > dtTest.toDateString()=Tue Feb 3 1987 > > which is what I expected. I am so confused. > > Any ideas? > > Paul > > --- In [email protected] <mailto:flexcoders%40yahoogroups.com> <mailto:flexcoders% 40yahoogroups.com> > <mailto:flexcoders%40yahoogroups.com> , "aceoohay" <pauls@> wrote: > > > > The following code yields unexpected results on a date; > > > > var dtTest:Date = new Date; > > dtTest.fullYear = 1987; > > dtTest.month = 1; > > dtTest.date = 3; > > trace('dtTest.toDateString()=' + > > dtTest.toDateString()); > > > > The result is; > > > > dtTest.toDateString()=Tue Mar 3 1987 > > > > It is my understanding that this should be February not March. > What am > > I doing wrong? or is there a bug in the Date object? > > > > Paul > > >
