How to list variables within a table in Lua?

Question

For example:

minion = {
   hp = 1000,
   x = 10,
   y = 25
}

Is there a function I can know how many variables there are within this table?

Answer 1

There’s already a size response. To traverse the elements:

minion = {
    hp = 1000,
    x = 10,
    y = 25 }

for i, v in pairs(minion) do
    print(i, "=>", v)
end

Behold working in the ideone. And in the repl it.. Also put on the Github for future reference.