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Re: ES6 draft, Rev20 is now available

From: Andrea Giammarchi <andrea.giammarchi@gmail.com>
Date: Wed, 30 Oct 2013 11:00:20 -0700
Message-ID: <CADA77mhQaJUYN7Um1gp-oGhDSObYAVqSqkfR8Q488Jgt4gCMrA@mail.gmail.com>
To: Brendan Eich <brendan@mozilla.com>
Cc: Anne van Kesteren <annevk@annevk.nl>, "public-script-coord@w3.org" <public-script-coord@w3.org>, es-discuss list <es-discuss@mozilla.org>
This is promoting a fix in the `Object.prototype` ... and since I believe
those dark days where `Object.prototype` shouldn't be touched due for/in
loops, I like it ^_^

Or maybe it's just a matter of `Arguments.prototype` , the most common non
iterable always converted via slice?


On Wed, Oct 30, 2013 at 10:26 AM, Brendan Eich <brendan@mozilla.com> wrote:

> Anne van Kesteren wrote:
>
>> On Wed, Oct 30, 2013 at 5:14 PM, Brendan Eich<brendan@mozilla.com>
>>  wrote:
>>
>>> >  Anne van Kesteren wrote:
>>>
>>>> >>  This is different from how sequence<T>   behaves in IDL. (It uses
>>>> >>  array-likes.) :/
>>>>
>>> >
>>> >  This is more general, since array-likes should be iterable to be like
>>> >  arrays, which are iterable.
>>> >
>>> >  So this seems ok. Right?
>>>
>>
>> An array-like only "length" and properties "0", "1", ... as far as I
>> know. I thought iterable meant they implement the iterator protocol.
>>
>
> The meaning of array-like is evolving, maybe. I know, this means old
> array-likes don't iterate without work. Temporary migration problem?
>
> /be
>
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Received on Wednesday, 30 October 2013 18:00:50 UTC

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