@kdex (sorry i missed this; your message was in my spam folder) if you find a way that Annex E is non-exhaustive, please file an issue on the spec - I would like it to be exhaustive.
On Mon, Feb 3, 2020 at 11:16 AM Naveen Chawla <[email protected]> wrote: > Thanks! Although I think it is a value judgement about how much risk is > worth how much reward, and which reward, so I wouldn't classify it as > necessarily a complete set of criteria yet, but it is certainly in the > right direction. And very interesting to me. Thank you. > > On Tue, 4 Feb 2020 at 00:40, Mark S. Miller <[email protected]> wrote: > >> While correct, each case asked the browser makers to make a risky and >> costly bet. When the risk was low and the payoff high, they've been great >> at doing so. This one does not fall into the viable risk vs reward >> territory. >> >> >> On Mon, Feb 3, 2020 at 7:58 AM kdex <[email protected]> wrote: >> >>> Yes, there have been numerous backwards-incompatible changes to the >>> language >>> over the years. >>> >>> You can find a list of them in section E of the ECMAScript language >>> standard. >>> IIRC, that list is non-exhaustive. >>> >>> On Monday, February 3, 2020 6:35:12 PM CET Naveen Chawla wrote: >>> > Thank you Claude! I did miss the point. >>> > >>> > Have there ever been "BC" breaks introduced into the language before? >>> If >>> > so, is there a sustainable standard for an "acceptable" one? >>> > >>> > On Mon, 3 Feb 2020 at 22:47, Claude Pache <[email protected]> >>> wrote: >>> > > Try typing `3 < 2 < 1` in the web console of your favourite browser, >>> and >>> > > see the result: it will evaluate to `true`. No, your browser isn’t >>> buggy, >>> > > it is just following blindly the semantics of `<`. >>> > > >>> > > Modifying the meaning of `3 < 2 < 1` in order to make it evaluating >>> to >>> > > `false` is a BC break. Is it acceptable? Dunno. >>> > > >>> > > —Claude >>> > > >>> > > Le 3 févr. 2020 à 15:23, Naveen Chawla <[email protected]> a >>> écrit : >>> > > >>> > > Hi! >>> > > >>> > > I didn't understand your reply. >>> > > >>> > > I think currently it would raise an error, because 1 < 2 < 3 is >>> currently >>> > > saying (probably) true < 3. >>> > > >>> > > But a "new" syntax could possibly parse that as a "chain" of >>> comparisons. >>> > > >>> > > Would this be acceptable to introduce into JavaScript (just curious)? >>> > > >>> > > I've probably missed your point entirely, because I saw a short >>> message "3 >>> > > < 2 < 1 //true", and I've assumed you meant it in reverse. >>> > > >>> > > On Sat, 1 Feb 2020 at 23:12, Mark S. Miller <[email protected]> >>> wrote: >>> > >> 3 < 2 < 1; // true >>> > >> >>> > >> >>> > >> On Sat, Feb 1, 2020 at 3:03 AM Naveen Chawla <[email protected] >>> > >>> > >> >>> > >> wrote: >>> > >>> Certain languages allow the expression 0<x<5. Does anybody know if >>> this >>> > >>> would be syntactically possible in JavaScript? Of course this >>> would only >>> > >>> apply for "if"/"while" statements. >>> > >>> >>> > >>> On Fri, 31 Jan 2020 at 22:41, Isiah Meadows < >>> [email protected]> >>> > >>> >>> > >>> wrote: >>> > >>>> Still better to discuss it there - it's highly related to your >>> > >>>> suggestion. And I'm pretty sure an issue already exists related to >>> > >>>> that. >>> > >>>> >>> > >>>> On Fri, Jan 31, 2020 at 09:06 Sultan <[email protected]> wrote: >>> > >>>>> The pattern matching proposal does not handles the mentioned >>> case: >>> > >>>>> >>> > >>>>> switch(type) { case 0...5: } being the equivalent of >>> switch(type) { >>> > >>>>> case 0: case 1: case 2: case 3: case 4: case 5: } >>> > >>>>> >>> > >>>>> On Fri, Jan 31, 2020 at 7:36 PM Bruno Macabeus < >>> > >>>>> >>> > >>>>> [email protected]> wrote: >>> > >>>>>> I agree with Oriol. >>> > >>>>>> We already have the proposal pattern matching, that has a very >>> > >>>>>> similar effect. >>> > >>>>>> I think that is better to improve pattern matching proposal in >>> order >>> > >>>>>> to be able to match using ranges (or at least check if it's >>> good to >>> > >>>>>> do) >>> > >>>>>> instead of create a new proposal. >>> > >>>>>> >>> > >>>>>> On Fri, 31 Jan 2020 at 14:08, Oriol _ < >>> [email protected]> >>> > >>>>>> >>> > >>>>>> wrote: >>> > >>>>>>> This sounds like >>> https://github.com/tc39/proposal-pattern-matching >>> > >>>>>>> >>> > >>>>>>> El 31/1/20 a les 10:57, Sultan ha escrit: >>> > >>>>>>> >>> > >>>>>>> For example, the following: >>> > >>>>>>> >>> > >>>>>>> switch (value) { >>> > >>>>>>> >>> > >>>>>>> case 0...9: break >>> > >>>>>>> case 'a'...'z': break >>> > >>>>>>> >>> > >>>>>>> } >>> > >>>>>>> >>> > >>>>>>> >>> > >>>>>>> _______________________________________________ >>> > >>>>>>> es-discuss mailing >>> > >>>>>>> [email protected]:// >>> mail.mozilla.org/listinfo/es-disc >>> > >>>>>>> uss >>> > >>>>>>> >>> > >>>>>>> >>> > >>>>>>> _______________________________________________ >>> > >>>>>>> es-discuss mailing list >>> > >>>>>>> [email protected] >>> > >>>>>>> https://mail.mozilla.org/listinfo/es-discuss >>> > >>>>>> >>> > >>>>>> _______________________________________________ >>> > >>>>>> es-discuss mailing list >>> > >>>>>> [email protected] >>> > >>>>>> https://mail.mozilla.org/listinfo/es-discuss >>> > >>>>> >>> > >>>>> _______________________________________________ >>> > >>>>> es-discuss mailing list >>> > >>>>> [email protected] >>> > >>>>> https://mail.mozilla.org/listinfo/es-discuss >>> > >>>> >>> > >>>> -- >>> > >>>> ----- >>> > >>>> >>> > >>>> Isiah Meadows >>> > >>>> [email protected] >>> > >>>> www.isiahmeadows.com >>> > >>>> _______________________________________________ >>> > >>>> es-discuss mailing list >>> > >>>> [email protected] >>> > >>>> https://mail.mozilla.org/listinfo/es-discuss >>> > >>> >>> > >>> _______________________________________________ >>> > >>> es-discuss mailing list >>> > >>> [email protected] >>> > >>> https://mail.mozilla.org/listinfo/es-discuss >>> > >> >>> > >> -- >>> > >> >>> > >> Cheers, >>> > >> --MarkM >>> > > >>> > > _______________________________________________ >>> > > es-discuss mailing list >>> > > [email protected] >>> > > https://mail.mozilla.org/listinfo/es-discuss >> >> >> >> -- >> Cheers, >> --MarkM >> > _______________________________________________ > es-discuss mailing list > [email protected] > https://mail.mozilla.org/listinfo/es-discuss >
_______________________________________________ es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss
