Re: Indexing a table with nil returns nil?
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- Subject: Re: Indexing a table with nil returns nil?
- From: Enrico Colombini <erix@...>
- Date: 2012年4月05日 16:59:07 +0200
On 05/04/2012 16.31, Dimitris Papavasiliou wrote:
It doesn't bother me really and I imagine
it can be useful at times, [...]
It can be useful, for example, to have 'nil propagation' in a chain of
table accesses without having to check for key validity at each step.
(sort of analogous to NaN propagation in numeric computations)
--
Enrico