Herby Vojčík wrote:
Frozen empty object can be created, and technically it has same properties, but it seems to me as an abuse of object.
Not at all, JS always allowed a unique object to be made as a guaranteed sentinel. That was a feature, and of course typeof sentinel == "object".
I think this is too philosophical a discussion to result in a strong reason to risk "symbol". Just my gut-check. Other TC39ers should weigh in (Andreas R. especially).
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