Learn You Some Erlang(6)

##Concurrency

1. start new process, spawn/1

   G = fun(X) -> timer:sleep(X), io:format(“~p~n”, [X]) end. [spawn(fun(X) -> G(X) end) || X <= list:seq(1,10)].

2. send message

   self() ! self() ! double

3. receive message

   receive Pattern1 when Guard1 -> Expr1; Partern2 when Guard2 -> Expr2; _ -> Expr3 end.