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That won't be a problem as for locally scopes variables. Whether it is a good idea, not so sure.
Justin
While writing some code, something popped up; do not use '_' as the name for your function (as you did in your sample code). In Lua it is mostly used as a placeholder for unused variables, so it will get you some very subtle and hard to track bugs later on.
Eg.
for _, val in ipairs(myTable) do
print(val)
end
Thijs