Method dequeue

Data-Structures/Queue/Queue.js:47–63

* @description - Removes the value at the front of the queue * @returns {*} - The first data of the queue

()

   * @returns {*} - The first data of the queue
   */
  dequeue() {
    if (this.isEmpty()) {
      throw new Error('Queue is Empty')
    }

    const firstData = this.peekFirst()

    this.head = this.head.next

    if (!this.head) {
      this.tail = null
    }

    this.#size--

    return firstData
  }

  /**
   * @description - Return the item at the front of the queue