Backwards compatibility has been broken before. I don't think this one is too bad of a breakage.
On Sun, Apr 17, 2016 at 9:48 PM, Biju <[email protected]> wrote: > On 17 April 2016 at 17:29, Frankie Bagnardi <[email protected]> wrote: >> That would break backward compatibility; >> >> ```js >> var a = ['a']; >> a['-1'] = 'test'; >> Object.keys(a) // ['0', '-1'] >> ``` > > Do we have statistics how many sties depend on that? > _______________________________________________ > 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
