besides abstract method
Returns true if an empty range exists between this and other.
Discrete ranges are not considered to be besides each other even though there are no elements "between them",
i.e. [1..4] is not beside [5..7].
This function is reflexive and symmetric.
Examples
final a = Interval.closedOpen(1, 3);
final b = Interval.closedOpen(3, 5);
a.besides(b); // true, [1..3) is beside [3..5)
final a = Interval.closed(1, 3);
final b = Interval.open(3, 5);
a.besides(b); // true, [1..3] is beside (3..5)
final a = Interval.closed(1, 5);
final b = Interval.open(3, 7);
a.besides(b); // false, [1..5] is not beside (3..7)
final a = Interval.closed(1, 3);
final b = Interval.open(5, 7);
a.besides(b); // false, [1..3] is not beside (5..7)
final a = Interval.closed(1, 4);
final b = Interval.closed(5, 7);
a.besides(b); // false, [1..4] is not beside [5..7], discrete range
Implementation
@useResult bool besides(Range<T> other);