Map.prototype.clear method

Domenic Denicola domenic at
Mon Oct 22 11:32:43 PDT 2012

On Oct 22, 2012, at 14:28, "Yehuda Katz" <wycats at<mailto:wycats at>> wrote:
On Mon, Oct 22, 2012 at 11:11 AM, Axel Rauschmayer <axel at<mailto:axel at>> wrote:
What about copying of these new data structures?

It should be possible to initialize a collection via another collection (right?). I prefer copy-constructors to clone() methods.

That would be fine with me, if supported.

Isn't it already specced to work, for Set at least, since it accepts any iterable?

let copy = new Set(original);

I don't recall offhand if Map accepts an iterable of [key, val] pairs, but if it doesn't yet, maybe this provides an argument that it should.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <>

More information about the es-discuss mailing list