Subtracts other
from this Duration and returns the difference as a new Duration object.
Duration operator -(Duration other) { return new Duration._microseconds(_duration - other._duration); }
© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dartlang.org/stable/2.0.0/dart-core/Duration/operator_minus.html