updateAt method
Implementation
void updateAt(int index, T item) {
if (item == null || index < 0 || (index + 1) >= _items.length) {
return;
}
_items[index] = item;
}
void updateAt(int index, T item) {
if (item == null || index < 0 || (index + 1) >= _items.length) {
return;
}
_items[index] = item;
}