Rewinding iterators

Marcus Stade marcus at
Mon Apr 7 03:30:03 PDT 2014

Thanks for filing that! Now I also know where to file bugs, so doubly

-- Marcus

On Mon, Apr 7, 2014 at 10:00 AM, David Bruant <bruant.d at> wrote:

>  Le 07/04/2014 02:31, Marcus Stade a écrit :
> In section 25.1.2 of the spec<>it says:
> The function returns an object that conforms to the IteratorResult
>> interface. If a previous call to the next method of an Iterator has
>> returned an IteratorResult object whose done property is true, then all
>> subsequent calls to the next method of that object must also return an
>> IteratorResult object whose done property is true,
> Are there any practical reasons why the Iterator interface explicitly
> disallows this?
> There is no good reason indeed. Worse, there is no way to enforce it on
> user-generated iterators, so it'd be dangerous for standard iterator
> consumers to assume such a property.
> This mention should probably be removed altogether.
> Filed
> Thanks,
> David
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <>

More information about the es-discuss mailing list