On 22 Aug 2008, at 15:22, Jason Orendorff wrote: > On Fri, Aug 22, 2008 at 6:22 AM, Sam Ruby <[EMAIL PROTECTED]> > wrote: >> On Fri, Aug 22, 2008 at 2:30 AM, Jason Orendorff >> <[EMAIL PROTECTED]> wrote: >>> var a = []; >>> a[0] = "first"; >>> a[0.0m] = "second"; // a second property? >>> a[0.000m] = "third"; // a third? >> >> [...] >> >> It seems to me that if trailing zeros are retained in a call to >> ToString, then to be consistent with ES3, the three assignments above >> would produce three properties. And if trailing zeros are lost, you >> would expect to only have one. Both approaches are internally >> consistent, and it surprises me to see either one characterized as >> "breaking" array lookup. > > Well, the intuition is that two equal numbers should index the same > property. This is an invariant in ES3 and it makes a lot of sense.
It's not quite an invariant in ES3. See my earlier message on the subject: https://mail.mozilla.org/pipermail/es-discuss/2008-July/006627.html drj _______________________________________________ Es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss
