30949 - final is a reserved identifier

Status: VERIFIED WONTFIX

(Core :: JavaScript Engine, defect, P3)

Description

[Richard Zach]

Got this error:

JavaScript Error: final is a reserved identifier

URL: http://sawedoffdesign.com/lower.htm
Line number: 75
Line text:       	final = new Image


If you visit this page with another browser and don't see a similar error, it
may indicate that the site has not yet been updated to support standards
implemented by the Mozilla browser such as the W3C Document Object Model (DOM). 
Please see http://developer.netsape.com/mozilla/ for more information.

I did not find "final" in the index of the W3C DOM1 specs.  The page works fine
in NS 4.x.  Is this expected behavior?

Linux build 2000.03.07.08

Comment 1

[vidur (gone)]

I believe final is an ECMAScript keyword. This is not a DOM issue. The JS group 
should be aware that some, potentially small, set of pages will break with this 
addition.

Comment 2

[Phil Schwartau]

That is correct - according to ECMAScript Edition 3, 
"final" is a future reserved word. (Section 7.5.3 )

Comment 3

[rogerl (gone)]

Revised JS documentation includes a list of these keywords. Not sure what else 
to do about it at this stage so closing off, ok?

Comment 4

[Richard Zach]

Should there be some kind of compatibility mode for when the page specifies
<script language="JavaScript 1.1">, say?

Comment 5

[rogerl (gone)]

Interestingly the java keywords seem to have been reserved for a long time (I'm 
really not sure how far back, but I haven't found any documentation that doesn't 
refer to them). Some of the newer keywords - like instanceof or enum - are 
controlled by the version number as you suggest.

Comment 6

[Prashant Desale]

WONTFIX