What means 'do --code; end'

[sjr04 (uep)]

Another use-case for this.

How and when can I use the do - end?

Creating locals that do not need to be exposed to outer scopes. For instance: local get_x, set_x do local x = 0 function get_x() return x end function set_x(value) x = value end end print(get_x()) -- 0 set_x(5) print(get_x()) -- 5 Here we are limiting the scope of x. The variable is still alive because it is available in the getters and setters get_x and set_x respectively as upvalues.