rangeTo method
Generates a list of numbers from the current number to other, inclusive.
Example:
print(1.rangeTo(5)); // Outputs: [1, 2, 3, 4, 5]
Implementation
List<num> rangeTo(num other) => this <= other
? List.generate((other - this + 1).toInt(), (index) => this + index)
: List.generate((this - other + 1).toInt(), (index) => this - index).reversed.toList();