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I don’t know why I used ‘s’ 😕 – using an underscore for arrays is a matter of personal style for me, but I think underscore + capital letter should be avoided in Lua from what I read:
http://www.lua.org/pil/1.3.html You should avoid identifiers starting with an underscore followed by one or more uppercase letters (e.g., _VERSION); they are reserved for special uses in Lua. Usually, I reserve the identifier _ (a single underscore) for a dummy variable.
Maybe I should say table and not array? Maybe table is the more correct term in Lua?
i is commonly used as the index and v as the value in looping though
arrays tables. If another counter is needed then j is often used and then k for key in associative arrays or tables, but of course generally variable names should have more descriptive titles.