It's actually specced to preserve insertion order: developer.mozilla.org/en-US/docs/W...
(...spread operator calls y[Symbol.iterator], which is specced to be the same as what is returned by .values() on Set)
...
y[Symbol.iterator]
.values()
Set
Oh interesting, in Python it is unordered.
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It's actually specced to preserve insertion order: developer.mozilla.org/en-US/docs/W...
(
...spread operator callsy[Symbol.iterator], which is specced to be the same as what is returned by.values()onSet)Oh interesting, in Python it is unordered.