removeLast method
Removes and returns the last object in this list.
The list must be growable and non-empty.
final parts = <String>['head', 'shoulder', 'knees', 'toes'];
final retVal = parts.removeLast(); // toes
print(parts); // [head, shoulder, knees]
Implementation
@override
Node removeLast() => super.removeLast()..parentNode = null;