Variables

variable = "value"

There are no data types in lua.
The variables are dynamic.

Scoping

By default, variables are global.
To localize them inside a block, you will need a local keyword.

g_var = "hi" -- this is a global variable and is accessible inside and outside the functions

function fun ()
    local l_var = "bye"
    print(g_var) -- accessible here
    print(l_var) -- accessible here
end


print(g_var) -- accessible here
print(l_var) -- not accessible here, it is `nil` here