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Learning JavaScript Data Structures and Algorithms - Third Edition
book

Learning JavaScript Data Structures and Algorithms - Third Edition

by Loiane Avancini
April 2018
Beginner to intermediate content levelBeginner to intermediate
426 pages
10h 19m
English
Packt Publishing
Content preview from Learning JavaScript Data Structures and Algorithms - Third Edition

Doubly linked lists

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  }
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Learning JavaScript Data Structures and Algorithms

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Loiane Avancini

Publisher Resources

ISBN: 9781788623872Supplemental Content