I understand the way it is used, but I don't understand why. "for-of" could have been spec'd to take either an Iterable (an object with an [Symbol.iterator] method) or an Iterator. Or just an Iterable.
On Mon, Jul 25, 2016 at 8:38 AM, Boris Zbarsky <[email protected]> wrote: > On 7/25/16 11:19 AM, John Lenz wrote: > >> Can anyone provide any historical context on why this method was added >> to the "iterator"? >> > > The idea is that you can do this: > > for (var something of myarray.entries()) > > and similar for other iterator-returning methods. The way for-of works is > that it will try to call iterator() on the thing to the right of the "of", > which in this case is an Iterator instance. > > -Boris > > _______________________________________________ > es-discuss mailing list > [email protected] > https://mail.mozilla.org/listinfo/es-discuss >
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