public IEnumerator <T> GetEnumerator() { DoubleNode <T> currentNode = First; while (currentNode != null) { yield return(currentNode.Value); currentNode = currentNode.Next; } }
public T this[int index] { get { DoubleNode <T> currentNode = First; int i = 0; while (currentNode != null) { if (index == i) { return(currentNode.Value); } currentNode = currentNode.Next; i++; } return(default);