> I don't know if it's still relevant to make a strict separation between programming paradigms. Consider whether the same input to your code will result in th

> I don't know if it's still relevant to make a strict separation between programming paradigms. Consider whether the same input to your code will result in the same output (aka functions), that's a good place to draw the line. You can stick 'FP' fancy types and closures into a method; that doesn't turn it into a function.