On 26 Aug 2013, at 04:08, Norbert Lindenberg <[email protected]> wrote:
> On Aug 24, 2013, at 23:43 , Mathias Bynens <[email protected]> wrote: > >> I would suggest adding something like `String.isIdentifier` which accepts a >> multi-symbol string or an array of code points to the strawman. Seems useful >> to be able to do `String.isIdentifier('foobar')` > > What would be the use case(s) for that? Tools like http://mothereff.in/js-escapes. > Would it accept only an actual identifier or all possible escaped forms of > one (i.e., only "𠮷野家" or also "\u{20BB7}野\u5BB6")? Both, since `"𠮷野家" === "\u{20BB7}野\u5BB6"`. That string is also equal to `"\uD842\uDFB7\u91CE\u5BB6"` although it hasn’t been decided if that should be a valid identifier too (since it uses the surrogate code points explicitly): <https://bugs.ecmascript.org/show_bug.cgi?id=469>. That complicates things. _______________________________________________ es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss
