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On Tue, May 31, 2016 at 10:19 AM, Javier Guerra Giraldez <> wrote:
On 31 May 2016 at 05:42, Justin Donaldson <> wrote:
> it needs to track its length in order to accommodate nil values

The usual approach to store nil values in a table is to use your own
'pseudo nil' value.

Consider creating an array [1,2,3], and then setting the index 100 to 4.  The indexes 4-99 will still be nil.   The length of that array reported by maxn/# would still be indeterminate.  How do I resolve that?