How to directly divide two Duration objects in Dart?

Question

In Dart, let's say you have:

Duration duration01 = Duration(milliseconds: 10000);
Duration duration02 = Duration(milliseconds: 100);

I know that while add or subtract seems to work, doing:

double result = duration01 / duration02;

does not work.

And I know how to do it using basic math by unwrapping and re-wrapping the duration objects... but is there a way to do it directly like I am attempting?

Answer 1

Dividing one Duration by another is not something that most people need to do, so there's no built-in way to do it.

You always can convert the Duration objects to microseconds and then perform arithmetic. Since Duration does not already have operator /, you can add one as an extension method to make it more convenient:

extension DurationDivision on Duration {
  double operator / (Duration other) =>
      inMicroseconds / other.inMicroseconds;
}

void main() {
  Duration duration01 = Duration(milliseconds: 10000);
  Duration duration02 = Duration(milliseconds: 100);
  print(duration01 / duration02); // Prints: 100
}