> On Oct 10, 2018, at 3:42 AM, T.J. Crowder <[email protected]> > wrote: > > the ambiguity that -0 and +0 are often hard to distinguish (Number's > `toString` returns `"0"` for both, for instance; operations involving them > largely don't care about the pseudo-sign of 0). Is that the rationale? > Basically, avoid a footgun while ensuring consistency?
Yes, exactly. Also, at that time the proposed comparator parameter was already restricted to selecting between SameValue and SameValue0 because of concerns/open issues about an unrestricted comparator parameter. After it was demonstrated that a subclass that distinguished ±0 was fairly trivial to write the comparator parameter was eliminated. The assumption was that someday an extension proposal to add a generalized comparator parameter would be brought forward and considered. Allen
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