text: // const ListNode = require('../extensions/list-node');
  /**
   * Implement the Queue with a given interface via linked list (use ListNode extension above).
   *
   * @example
   * const queue = new Queue();
   *
   * queue.enqueue(1); // adds the element to the queue
   * queue.enqueue(3); // adds the element to the queue
   * queue.dequeue(); // returns the top element from queue and deletes it, returns 1
   *
   */
  
  class Queue {
    constructor() {
      this.length = 0;
    }
  
    get size() {
      return this.length;
    }
  
    enqueue(/* element */) {
      throw new Error('Not implemented');
    }
  
    dequeue() {
      throw new Error('Not implemented');
    }
  }
  
  module.exports = Queue;
  