Looks like a bug in Date class

Question

Hi guys,
I just logged in to highlight what I encountered when I was
trying to convert milliseconds of a time stamp to a date/time
string.
Just see the following codes.
public function
convertTimeStampToDateAndTime(timeStampInMilliseconds:Number):String
var stampReadableFormate:String = null;
if(!isNaN(timeStampInMilliseconds))
var stampDate:Date = new Date(timeStampInMilliseconds);
var stampHour:Number = stampDate.getHours();
var stampMin:Number = stampDate.getMinutes();
var stampSec:Number = stampDate.getSeconds();
var stampYear:Number = stampDate.getFullYear();
var stampMonth:Number = stampDate.getMonth() + 1;
var stampDate:Number = stampDate.getDate();
stampReadableFormate = "" + stampDate + "/" + stampMonth +
"/" + stampYear + " " + stampHour + ":" + stampMin + ":" +
stampSec;
trace("Date/Time=" + stampReadableFormate);
return stampReadableFormate;
Then I call this method from somewhere by using,
var reportTime:String =
this.convertTimeStampToDateAndTime(new Date().getTime());
You can see trace method in convertTimeStampToDateAndTime()
is giving you a correct output.
But just change the convertTimeStampToDateAndTime() method in
a way that you get time information after you got date, month and
Year. To explain what I am taking about I have pasted changed code
as following.
public function
convertTimeStampToDateAndTime(timeStampInMilliseconds:Number):String
var stampReadableFormate:String = null;
if(!isNaN(timeStampInMilliseconds))
var stampDate:Date = new Date(timeStampInMilliseconds);
var stampYear:Number = stampDate.getFullYear();
var stampMonth:Number = stampDate.getMonth() + 1;
var stampDate:Number = stampDate.getDate();
var stampHour:Number = stampDate.getHours();
var stampMin:Number = stampDate.getMinutes();
var stampSec:Number = stampDate.getSeconds();
stampReadableFormate = "" + stampDate + "/" + stampMonth +
"/" + stampYear + " " + stampHour + ":" + stampMin + ":" +
stampSec;
trace("Date/Time=" + stampReadableFormate);
return stampReadableFormate;
now call
var reportTime:String =
this.convertTimeStampToDateAndTime(new Date().getTime());
Now see the trace out put, what has happened, your timing
informations are undefined.
Looks like it is a bug to me.
If this issue has already been discussed before I am very
sorry by duplicating it.
Chears
Naleen

Answer 1

Thanks for all the responses.
I am not redefining stampDate inside your function/method.
Please look at it again.
I call convertTimeStampToDateAndTime() from out side and in
my original post I have written it as following....
var reportTime:String =
this.convertTimeStampToDateAndTime(new Date().getTime());
That is just an example for you to udnerstand it,
But what we are doing in our actual application is we read an
XML file which has time stamps on each elements as attributes. For
an example, if following is the XML line....
<element timeStamp='1195770453174'
>blaaa</element>
In Actionscript we call this method,
var reportTime:String =
this.convertTimeStampToDateAndTime(1195770453174);
So I am not redefining at all.
Just do a simple test by user self.
My second point is.... If I am redefining a date again with
same number of Milliseconds Date class constructor shouldn't care
it.
For an instance
Var myMilliSEC1:Number = new Date().getTime(); // this is
constructing today's date and converts to milliseconds
var myDate1:Date = new Date(myMilliSEC1); //so this should
give me the todays date again...
Var myMilliSEC2:Number = myDate1.getTime();
Now myMilliSEC1 should equal to myMilliSEC2
But that is a different issue.... I am just answering for
your comment on "REDEFINING DATE":
Anyway thanks for your time and concern.