I suggest:
[ ... mySet ]
or, if you don't want to use any new syntax:
Array.from(mySet)
—Claude
P.S. The syntax `[e for e of mySet]` is outdated in Harmony, you should use
`[(for let e of mySet) e]`.
Le 16 sept. 2013 à 17:33, Angus Croll <[email protected]> a écrit :
> I'm trying to figure out the most painless way, given a set, to return the
> set's values as an array.
>
> Possibilities:
> 1) harmony wiki
> (http://wiki.ecmascript.org/doku.php?id=harmony:iterators&s=iterator)
> suggests the following, but it is a syntax error in traceur, continuum and
> "node --harmony"
>
> let arr = [e for e of mySet];
>
> 2)The ES6 standard supports the following production (i.e. expression, not
> var, before 'for'):
> IterationStatement : for ( LeftHandSideExpression of AssignmentExpression )
> Statement
> (see http://people.mozilla.org/~jorendorff/es6-draft.html#sec-13.6.4.2)
>
> which suggests I should be able to do this:
> let arr = [];
> for (arr[arr.length-1] of mySet);
>
> (I can do the equivalent with for-in) but that also errors in the above three
> transpilers
>
> 3) So then I'm left with the pedestrian:
> let arr = [];
> for (e of mySet) {
> arr.push(e);
> }
>
> 4) I also wondered if Array.from(mySet) would do the trick but again doesn't
> seem to pass muster with any of the above transpilers. (continuum returns a
> zero length array and the other two don't know Array.from)
>
> Wondering if I'm missing something better.
> thanks
>
> Angus
> @angustweets
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