Re: In praise of 'nil' (Was: Proposal for table length operator

[Wesley Smith <wesley.hoke@...>]

> print(table.pack((function()return end)()).n) -- 0
> print(table.pack((function()return nil end)()).n) -- 1
> print(table.pack((function()return nil, nil end)()).n) -- 2
>
> If 'nil' was to really be indistinguishable from "non-existent", all three
> would have to print '0'.

more like a "known unknown".  black matter perhaps.  it's there but it
can't be inspected :)