Make comma at the end of line optional

Matthew Robb matthewwrobb at gmail.com
Tue Sep 12 23:54:53 UTC 2017


Okay what would be the cons to allowing semi colons in place of commas in
object literals?

I have an aversion to dangling commas. They're like,

On Sep 12, 2017 7:40 PM, "Jordan Harband" <ljharb at gmail.com> wrote:

> I would take commas over a mixture a thousand times over; I'd do the same
> with semicolons - it's not the presence or absence of these tokens that
> causes a problem, it's the ambiguity.
>
> Introducing the same horrific ambiguity around semicolons, for commas,
> does not sound like a good idea.
>
> On Tue, Sep 12, 2017 at 1:57 PM, Tab Atkins Jr. <jackalmage at gmail.com>
> wrote:
>
>> On Tue, Sep 12, 2017 at 1:49 PM, Алексей <agat00 at gmail.com> wrote:
>> > Think of it from a different way: if there would be no ',' how would you
>> > react on the idea of adding it? Peaty sour every one would decide that
>> would
>> > be a complete nonsense.
>>
>> This sort of hypothetical isn't useful; you're not proposing switching
>> over to *solely* comma-less, you're proposing a *mixture* of comma and
>> comma-less being allowed.  That has very different ergonomics than
>> either all-comma or all-comma-less.
>>
>> The hypothetical comma-less language would also have made many
>> different syntax decisions over the years to accommodate that, which
>> current JS has *not* made.  This causes the sorts of problems that
>> Claude/etc have pointed out.
>>
>> ~TJ
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