ah ok, I forgot about other types of iterables, like infinite ones:
```
function* ones(){ while(true) yield 1; }
var [...a]=ones(); // freezes
```2016-10-01 18:24 GMT+02:00 Dmitry Soshnikov <[email protected]>: > Yeah, because it's not a pattern patching, and access to array elements > may have side effects, it's seems hard to specify/implement. Otherwise, > destructuring might analyze the pattern, see the last element is required, > extract it, and then do iteration for others. > > Dmitry > > > On Saturday, October 1, 2016, Michael Theriot < > [email protected]> wrote: > >> I think this is because there's no universal way of determining when an >> iterator ends. The only way this could work for all iterators would require >> popping values off of `a` after they've been added. >> >> On Sat, Oct 1, 2016 at 6:17 AM, Cyril Auburtin <[email protected]> >> wrote: >> >>> It was possibly already discussed, but why isn't: >>> ``` >>> var [...a, last] = [1,2,3]; >>> ``` >>> supported? >>> >>> I don't see the problem, as long as there's one ... only >>> >>> _______________________________________________ >>> es-discuss mailing list >>> [email protected] >>> https://mail.mozilla.org/listinfo/es-discuss >>> >>> >>
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