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- Subject: Re: The terms "sequence", "list", etc in Lua 5.2.0 (beta-rc1)
- From: David Kastrup <dak@...>
- Date: Thu, 16 Jun 2011 08:00:03 +0200
Xavier Wang <weasley.wx@gmail.com> writes:
> The length of a table t is only defined if the table is a sequence,
> that is, all its numeric keys comprise the set {1..n} for some
> integer n.
>
> is that mean, a empty table ({}) has no length defined?
Huh? All its numeric keys satisfy any imaginable predicate, including
impossible ones.
--
David Kastrup
