Mark S. Miller wrote:
Aside from this confinement issue, all other the advantages that
unique symbols have over unique-ish strings seem minor to me. The
biggest is default non-enumerability, when we're getting away
(admittedly slowly) from enumerability being significant anyway. IMO,
if the only advantages of unique symbols over unique-ish strings are
these minor ones, then they don't pull their weight.
However, I don't understand the confinement scenario you have in mind.
Can you give an example?
A friend field a la C++ "friend", e.g.:
module ... {
const friend = Symbol(); // however it's spelled
class A { ... }
class B { ... }
}
where fiend is used in the ... elisions but only to access properties of
objects known to be instanceof A or B.
/be
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