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

To evaluate a catch (always the same idea to have multiple expression reduced to one)

Res = (catch
    begin
        C = foo(Bar),
        io:format("evaluation of C ok~n"),
        D = bar(A, B, C)
     end),