Re: Lua, LuaJIT2 and differences with the length operator

[KHMan <keinhong@...>]

On 1/4/2011 9:18 PM, Leo Razoumov wrote:
> On Wed, Dec 29, 2010 at 10:31, Luiz Henrique de Figueiredo wrote:
> > Let's not get into this discussion again: #t does not return anything useful
> > if t is "an array with holes".
>
> There is a good reason why this question persistently comes up again and again.
> Lua provides no good way to test whether a given array has holes or
> not. Most of the time one relies upon leap of faith to trust #t
> values. In that regard Lua quite successfully bridged a gap between
> Coding and Religion:-)

Faulty applied programming. When did programming involve a leap of 
faith? Try telling that to developers of aviation software.

Use #t conservatively, according to its specifications.

This advice has been repeated by many others in recent past postings.

--
Cheers,
Kein-Hong Man (esq.)
Kuala Lumpur, Malaysia