add method
Adds value
to the end of this list,
extending the length by one.
The list must be growable.
final numbers = <int>[1, 2, 3];
numbers.add(4);
print(numbers); // [1, 2, 3, 4]
Implementation
@override
void add(T element) {
_context.conditionallyRunInAction(() {
final index = _list.length;
_list.add(element);
_notifyElementUpdate(index, element, null, type: OperationType.add);
}, _atom);
}