domenic at domenicdenicola.com (2013-09-25T02:33:05.730Z)
I suggest: [ ... mySet ] or, if you don't want to use any new syntax: Array.from(mySet) P.S. The syntax `[e for e of mySet]` is outdated in Harmony, you should use `[(for let e of mySet) e]`.
I suggest: [ ... mySet ] or, if you don't want to use any new syntax: Array.from(mySet) P.S. The syntax `[e for e of mySet]` is outdated in Harmony, you should use `[(for let e of mySet) e]`.
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mySet ] or, if you don't want to use any new syntax: Array.from(mySet) —Claude P.S. The syntax `[e for e of mySet]` is outdated in Harmony, you should use `[(for let e of mySet) e]`.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 <anguscroll at gmail.com> 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 > _______________________________________________ > es-discuss mailing list > es-discuss at mozilla.org > https://mail.mozilla.org/listinfo/es-discuss -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.mozilla.org/pipermail/es-discuss/attachments/20130916/d22d172e/attachment-0001.html>