how to declare a variable in lua code example

Example 1: lua make variable global

varname = varval

Example 2: lua variable

-- Private Variable
local name1 = "John"

-- Public Variable
name2 = "Jane"

print(name1)
print(name2)

Example 3: Lua variable

-- Variables are global by default:
globalVariable = 10
-- To make a variable local:
local localVariable = 20