[Fizzlemizz]

pairs returns the key, value pairs in a table

self.tab = {
      key1 = 1,
      key2 = { a=1, b=2 },
      key3 = "Hello"
}

for key, value in pairs(self.tab) do
    -- This will return over the 3 iterations (in no particular order)
    key == "key1", value == 1
    key == "key2", value == (pointer to the table)
    key == "key3", value == "Hello"
end

You can replace the key, value terms with any names that suit the situation.