Of course it can be as simple as that, that's beside the point But almost every time you actually won't ship a program that just prints stuff to the console T

Of course it can be as simple as that, that's beside the point But almost every time you actually won't ship a program that just prints stuff to the console That's why I did it that way, because how you actually output won't be println, but probably to a window or a socket, or whatever The core functionality of passing a slice will be actually useful in those cases, you can include this code in your final program