Set.prototype.entries: indices as keys?

[Brendan Eich]

Dmitry Soshnikov wrote:
>
>     ```js
>     let [x,y] = set; // x='a'; y='b’;
>     ```
>
>
> Would this work actually? :) Destructuring does get property, which 
> wouldn't call set's `get` method.

See 
http://people.mozilla.org/~jorendorff/es6-draft.html#sec-runtime-semantics-destructuringassignmentevaluation 
-- destructuring array patterns uses the iteration protocol, which is 
why the line works as Axel suggested:

js> let set = new Set(['a', 'b']);
js> let [x,y] = set;
js> console.log(x, y)
a b
js> for (let elt of set) console.log(elt)
a
b

But not all iterables are indexable, nor should they be.

/be