Out of mere curiosity, why is it desired that `symbol + ''` throw? Nathan
On Tue, Aug 12, 2014 at 10:39 PM, Erik Arvidsson <erik.arvids...@gmail.com> wrote: > symbol + '' must continue to throw. > > I was suggesting that String(symbol) should not throw. > > This can be spec'ed as String( value ) checking the Type of the value and > special case it in case of the value being a symbol. > > > On Tue, Aug 12, 2014 at 5:17 PM, Claude Pache <claude.pa...@gmail.com> > wrote: > >> >> Le 12 août 2014 à 22:35, Erik Arvidsson <erik.arvids...@gmail.com> a >> écrit : >> >> Right now String(symbol) throws because it uses ToString which is spec'ed >> to throw. >> >> I'm suggesting that we special case String(value) to do a type check for >> Symbol and return the same string as Symbol.prototype.toString.call(value) >> does. >> >> >> https://people.mozilla.org/~jorendorff/es6-draft.html#sec-string-constructor-string-value >> >> The motivation for this is that String(value) is pretty explicit and was >> in ES5 a safer way to stringify something than value.toString(). >> >> -- >> erik >> >> >> +1. As I already noted last year [1], as currently specced, ad-hoc >> debugging code like `alert("got argument: " + x)` or `alert("got argument: >> " + String(x))` will throw for symbols, while `alert("got argument: " + >> x.toString())` will throw for `null`, `undefined`, and >> `Object.create(null)`. >> >> [1] http://esdiscuss.org/topic/a-new-es6-draft-is-available#content-11 >> >> >> > > > -- > erik > > _______________________________________________ > es-discuss mailing list > es-discuss@mozilla.org > https://mail.mozilla.org/listinfo/es-discuss > >
_______________________________________________ es-discuss mailing list es-discuss@mozilla.org https://mail.mozilla.org/listinfo/es-discuss
