y. Iterators are themselves iterable, so you can for/of an interator (which happens to be a generator), exit the for/of loop early, and currently resume the iterator. Were we to adopt the proposal, when the iterator is a generator, it would not be resumable.
On Fri, Apr 25, 2014 at 12:46 PM, C. Scott Ananian <[email protected]>wrote: > On Fri, Apr 25, 2014 at 3:12 PM, Mark S. Miller <[email protected]>wrote: > >> I would really like to believe that this is adequate to postpone the rest >> of this issue to ES7. But even without finally, this proposal would put the >> generator in a non-resumable state in ES7 after ES6 would ship them in a >> resumable state. I don't think that's realistic. >> > > But is that user-visible? We're talking about `for-of` and uses inside > `Array.from` and other built-ins. I don't think the user can get at the > raw iterator instance in any of these cases, so they should not be able to > observe the generator state. Am I missing something? > --scott > -- Cheers, --MarkM
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