Re: Empty? No. Array? No. Has? Yes.

[Roberto Ierusalimschy <roberto@...>]

> > 1. Any solution that addresses only arrays does not solve the problem
> >    identified by the OP.

Well, the original post says that:

> So having an explicitly stored nil versus having no value stored at all
> is equivalent (all this I love, btw … 100 points to Lua).
> 
> But it all rather breaks down with arrays (sequences).

So, I do not see why a solution that addresses only arrays does not
solve the problem identified by the OP. (Not that I think that the
problem identified in the OP is implicitly more relevant than other
problems identified through the discussion.)

-- Roberto