How to create Linked List in Javascript

In this blog we are going to learn how to create a Linked List in JavaScript

But What is Linked List?
A linked list is a linear data structure where elements are connected to each other through pointers. Each element in the linked list, called a node, contains a value and a reference to the next node in the list

class Node {
  constructor(value, next = null) {
    this.value = value;
    this.next = next;
  }
}

class LinkedList {
  constructor() {
    this.head = null;
    this.tail = null;
  }

  add(value) {
    const node = new Node(value);
    if (!this.head) {
      this.head = node;
      this.tail = node;
      return;
    }
    this.tail.next = node;
    this.tail = node;
  }

  *[Symbol.iterator]() {
    let node = this.head;
    while (node) {
      yield node.value;
      node = node.next;
    }
  }
}

const list = new LinkedList();
list.add(1);
list.add(2);
list.add(3);

for (const value of list) {
  console.log(value);
}

In this example, the Node class represents a node in the linked list, and the LinkedList class represents the linked list itself. The LinkedList class has a head property that points to the first node in the list, and a tail property that points to the last node in the list. The add method creates a new node with the given value and adds it to the end of the list. The linked list is made iterable by implementing the Symbol.iterator method, which allows it to be used in a for...of loop.