getting data from a list LUA code example

Example 1: where do lua tables start

tbl = {"yes"}
tbl[1]
-- Arrays/Tables start at 1

Example 2: table lua

a = {}
    x = "y"
    a[x] = 10                 -- put 10 in field "y"
    print(a[x])   --> 10      -- value of field "y"
    print(a.x)    --> nil     -- value of field "x" (undefined)
    print(a.y)    --> 10      -- value of field "y"