114401 - getYear returns 101 not 01 or 2001

Status: RESOLVED DUPLICATE of bug 22964

(Core :: JavaScript Engine, defect)

Description

[Samuel Åslund]

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:0.9.6) Gecko/20011120
BuildID:    2001112009

This script writes 101 to the viewed page.

 <script language="javascript">
<!--
 Today = new Date();
 document.write(Today.getYear());
//-->
</script>



Reproducible: Always
Steps to Reproduce:
1.point your browser at www.cc-systems.com
2.Look in the lower right corner.
3.

Actual Results:  Copyright © 101 CC Systems AB

Expected Results:  Copyright © 2001 CC Systems AB

or

Copyright © 01 CC Systems AB

Comment 1

[Jerome Lacoste]

Problem is probably caused by line
http://lxr.mozilla.org/seamonkey/source/js/src/jsdate.c#803

Looking at the code at
http://lxr.mozilla.org/seamonkey/source/js/src/jsdate.c#774, there is a big
comment saying that one should use getFullYear() instead of getYear() or specify
the version of the script.

Recomment reporter try out these two solutions.

Comment 2

[Olivier Cahagne]

Should be marked WONTFIX, I remember an URL saying this is a normal 'buggy'
behaviour to respect previous implementations and scripts, and getFullYear()
should now be used to prevent this.
See http://developer.netscape.com/viewsource/goodman_2k.html and
http://www.xs4all.nl/~ppk/js/introdate.html for example.

Comment 3

[Jerome Lacoste]

Some URLs that describe problem and solution.
http://www.webdevelopersjournal.com/articles/javascript_limitations.html
http://wipos.p.lodz.pl/zylla/opera/introdate.html
Agreed: should be WONTFIX. Perhaps should get a comment somewhere in the
documentation.

Comment 4

[R.K.Aa.]

see comments in bug 22964, bug 45764, bug 58241, bug 65681, bug 82354 

*** This bug has been marked as a duplicate of 100123 ***

Comment 5

[Phil Schwartau]

Verified Duplicate - thanks to all who contributed on this.

Comment 6

[:Gavin Sharp [email: [e-mail]]]

*** This bug has been marked as a duplicate of 22964 ***