modulu, Raul's Array map example

Benjamin (Inglor) Gruenbaum inglor at
Sun Sep 22 13:46:34 PDT 2013

Yeah sorry. English is not my first language. I definitely meant API. It's
not as much about that specific case but about your point on the spec and
developers. Thanks again.


On Sun, Sep 22, 2013 at 11:32 PM, Rick Waldron <waldron.rick at>wrote:

> On Sunday, September 22, 2013, Benjamin (Inglor) Gruenbaum wrote:
>> I just asked Raul's weird syntax question in SO and tried to answer it
>> myself. Going through the spec, I have to admit that he has a point and
>> things could be clearer. I think the JS spec being good is a big factor not
>> only for implementers but for developers too and it could be better :)
>> However, admittedly I'm not a great writer myself and I don't know how
>> the spec itself could be clearer in this case, and it was good *enough *for
>> me as someone who has already read the spec to walk through. It would be
>> great if that would be the case for new developers too.
> I think you mean API, not syntax. Using Array.apply(null, arraylike) where
> arraylike = some object with a length property to create an empty array
> isn't the sort of content that belongs in a normative specification—it's
> merely an interesting use of the language's API. The parts of the
> expression in Ben's tweet are all explicitly specified in the standard.
> Rick
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