Re: new "empty" value/type in Lua?

[Enrico Colombini <erix@...>]

On 28/06/2013 13.03, Tim Hill wrote:
> There are plenty of cases where being able to "mark" an array entry
> as done/dead/empty etc is useful as part of an algorithm. In many
> cases you can do that using a sentinel value that is outside the
> normal range of expected array types and/or values, but it's all very
> domain specific (can I use an empty string? -1? false? auxiliary
> state?). I'm basically arguing that "empty" allows you to do this in
> a nice, clean, self-documenting, portable manner. I don't really see
> anything heretical in that.

empty = {}

--
  Enrico