addAll method
Appends all objects of iterable
to the end of this list.
Extends the length of the list by the number of objects in iterable
.
The list must be growable.
final numbers = <int>[1, 2, 3];
numbers.addAll([4, 5, 6]);
print(numbers); // [1, 2, 3, 4, 5, 6]
Implementation
void addAll(Iterable<E> iterable) {
if (value == null) return;
update((_) => value?.addAll(iterable));
}