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(EntityT element) {
ArgumentError.checkNotNull(element, 'element');
_track(element, 1);
if (__items == null) {
// We don't need to load old data from DB to add new items.
_addedBeforeLoad.add(element);
} else {
_items.add(element);
}
}