how to loop through a string i lua code example

Example: loop in lua

-- a loop will repeat the code for a limited amount of time
-- let make one
for a = 1 --(from where you want it to start),10 --(how long you want it to be),1 --[How many jumps it needs to make(ex 2, 4, 6, 8,10)]
	print(a) -- now it will count to 10
end