Code smell? Iterator prototype has iterator method that returns "this"
concavelenz at gmail.com
Mon Jul 25 23:28:13 UTC 2016
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 <bzbarsky at mit.edu> 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.
> es-discuss mailing list
> es-discuss at mozilla.org
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the es-discuss