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This is excellent. However, I believe there is a typo tb -> keys. (I cannot comment properly because I do not yet have sufficient reputation.)

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I personally use the following function inspired by @ahmadh

function random_elem(tb)
    local keys = {}
    for k in pairs(tb) do table.insert(tbkeys, k) end
    return tb[keys[math.random(#keys)]]
end

I personally use the following function inspired by @ahmadh

function random_elem(tb)
    local keys = {}
    for k in pairs(tb) do table.insert(tb, k) end
    return tb[keys[math.random(#keys)]]
end

I personally use the following function inspired by @ahmadh

function random_elem(tb)
    local keys = {}
    for k in pairs(tb) do table.insert(keys, k) end
    return tb[keys[math.random(#keys)]]
end

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created Oct 29, 2018 at 21:23

user9145571

I personally use the following function inspired by @ahmadh

function random_elem(tb)
    local keys = {}
    for k in pairs(tb) do table.insert(tb, k) end
    return tb[keys[math.random(#keys)]]
end