comparator method

  1. @override
int comparator(
  1. double value1,
  2. double value2
)
override

Returns a negative number if value1 is less than value2, zero if they are equal, and a positive number if value1 is greater than value2. Almost the same: value1 - value2

Implementation

@override
int comparator(double value1, double value2) => value1.compareTo(value2);