What is begin…end in Erlang used for?

Question

I just stomped at a begin...end in Erlang\'s documentation (here), but it doesn\'t give some examples of how it is useful.

Looking here in StackOverflow I f

Answer 1

Macros, for example:

-define(M(A, B),
    begin
        C = foo(),
        bar(A, B, C)
    end).