From my understanding it also allows you to write your front and back end in one application and language. Then it compiles the front end to JS and the backend

From my understanding it also allows you to write your front and back end in one application and language. Then it compiles the front end to JS and the backend to C++ executable. I think this is where a large advantage can be seen. edit: it automates the connection between the front and backends tying the two together.