ES6 doesn't need opt-in

Brendan Eich brendan at mozilla.com
Sun Jan 8 21:26:39 PST 2012


On Jan 8, 2012, at 4:53 PM, Mark S. Miller wrote:

> On Sun, Jan 8, 2012 at 10:32 AM, Brendan Eich <brendan at mozilla.com> wrote:
> [...]
> 
> All cool with the above. Thanks.
> 
> I wrote in a previous reply that we aren't preserving ES5 as a spec referenced from ES6. ES6 will be self-contained. So I still don't grok your concern here.
> 
> Sorry, I missed that. In that case, I still don't understand what your plan for ES6 is. Does the ES6 spec include the state machine and an updated form of the ES5-non-strict portions of the ES5 spec, as referenced by that state machine?

I defer to Allen, but one approach is to leave ES5-nonstrict as is, and combine strict and extended modes for the "6" in 5&6 and ES56. As you proposed!

HTH,

/be


> If not, what standards document governs how a future standards compliant browser is supposed to handle code which has non opted into anything, neither implicitly-explicitly nor explicitly?
>  
> 
> 
> -- 
>     Cheers,
>     --MarkM

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