parseInt and implicit octal constants

Mark S. Miller erights at
Fri Feb 20 16:47:45 PST 2009

On Fri, Feb 20, 2009 at 3:45 PM, Maciej Stachowiak <mjs at> wrote:
>> [...] Opera folk, do you have any data (anecdotal would be fine) of how
>> much breakage you encounter because of this decision?
>> If the Opera experience says the risk is acceptably low, I vote to
>> disallow octal.
> I wouldn't assume that an Opera-only behavior is safe for the Web; there are
> a number of Opera-specific behaviors that for instance Firefox or Safari
> would not accept as meeting our threshold of Web compatibility. I would be
> interested in hearing what, if any, bugs they have run into.
> I think the wise thing to do here is specify a requirement for octal
> support. The potential improvement in overall usability of the language
> seems small and not worth taking a compatibility risk.

Absent further information from the Opera folks, I agree. But if we
can, we should postpone committing to a decision until we hear about
their experience with this.

Opera folks?


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