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
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