Flutter: Can I pass arguments to a function defined in an onPress event on a button?

Question

I have a simple form with a button to calculate the form. I figure it\'s better to hit the button to start the action of calculating and pass the variables to the dumb function

Answer 1

Shorthand function designed in such a way that it is allowed to return function with type void as mentioned in this article --> So why is returning everything allowed through a shorthand function[()=>] even if the return type is void?

So that you have two approaches in your disposal:

use

onPressed: () => calculate(1, 2),

or

onPressed: (){calculate(1, 2);},