Call for opinions: attribute defaults and renaming "flexible"

Brendan Eich brendan at
Sun Aug 24 14:34:26 PDT 2008

On Aug 24, 2008, at 2:12 PM, Ingvar von Schoultz wrote:

>> If an object is non-extensible and all of its own properties are
>> non-configurable, then it is _sealed_.
> I think _locked_ would be more concrete, and Object.lock().

No good, lock connotes "acquire mutex" and suggests unlocking is  

> Sealed and frozen are so vague and similar that I have to think
> three times to distinguish between them. Locked becomes concrete
> due to the real locks that you see every day.

What real locks? If you mean on doors, the problem is that "lock" has  
a more common meaning in programming, and it has nothing to do with  


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