How to implement a linked list using node js

// Node class for a linked list
class Node {
  constructor(data, next = null) {
    this.data = data;
    this.next = next;
  }
}

// Linked List class
class LinkedList {
  constructor() {
    this.head = null;
  }

  // Method to add a node to the end of the linked list
  append(data) {
    const newNode = new Node(data);
    if (!this.head) {
      this.head = newNode;
      return;
    }

    let current = this.head;
    while (current.next) {
      current = current.next;
    }

    current.next = newNode;
  }

  // Method to display the linked list
  display() {
    let current = this.head;
    while (current) {
      console.log(current.data);
      current = current.next;
    }
  }
}

// Example usage
const linkedList = new LinkedList();
linkedList.append(1);
linkedList.append(2);
linkedList.append(3);
linkedList.display();