I agree with this, Dart has the exact thing and it's amazing. Not sure what's the status or reason for not following through, though.
On Wed, Oct 10, 2018 at 3:54 AM Man Hoang <[email protected]> wrote: > This operator should have been added years ago. It would enable many APIs > to return more appropriate results instead of `this`. > > > > For example, `Set.prototype.add(value)` could return a boolean indicating > if an item was actually added instead of `this`. > > > _______________________________________________ > es-discuss mailing list > [email protected] > https://mail.mozilla.org/listinfo/es-discuss >
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