this post was submitted on 12 Feb 2026
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Programming
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i think the most interesting design detail of lua tables is just glossed over as "nil-holes" in this article. namely, that nil values do not exist. there is no
table.delete(key)method, you just zero out the value and the key stops existing. the same thing is true for any variable, if you set it to nil it ceases to be. i find that implementation fascinating.