April 2018
Beginner to intermediate
426 pages
10h 19m
English
There are different types of linked list. In this section, we are going to cover the doubly linked list. The difference between a doubly linked list and a normal linked list is that in a linked list we make the link from one node to the next one only, while in a doubly linked list, we have a double link: one for the next element and one for the previous element, as shown in the following diagram:

Let's get started with the changes that are needed to implement the DoublyLinkedList class:
class DoublyNode extends Node { // {1} constructor(element, next, prev) { super(element, next); // {2} this.prev = prev; // {3} NEW }