intersection method

DateInterval? intersection(
  1. DateInterval interval
)

Returns the intersection between the given interval and this interval.

  • interval: The specified interval to intersect with this one.

A DateInterval corresponding to the intersection between the given interval and the current instance. If there is no intersection, a null reference is returned.

  • ArgumentException: interval uses a different calendar to this date interval.

Implementation

DateInterval? intersection(DateInterval interval) {
  return containsInterval(interval)
      ? interval
      : interval.containsInterval(this)
          ? this
          : interval.contains(start)
              ? DateInterval(start, interval.end)
              : interval.contains(end)
                  ? DateInterval(interval.start, end)
                  : null;
}