Hello!

I'm currently working on functions and have two questions:

• Should attempting to print a function with no return yield a 0 or an error
• Does a function with no inputs use empty brackets when called

For example, take the ML code:

x <- 1
y <- 2

function printadd
	print x + y

print printadd ()

In this example, will the output be:

3
0

Or will it be an error? And since there are no parameters for printadd, do I need to include the brackets after printadd as shown?

Thank you!