addAll method Null safety

void addAll (
  1. Iterable<E> iterable
)
override

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.

Implementation

void addAll(Iterable<E> iterable) {
  int i = this.length;
  for (E element in iterable) {
    assert(this.length == i || (throw ConcurrentModificationError(this)));
    add(element);
    i++;
  }
}