Method pop

src/data-structures/stack/Stack.js:44–49

* @return {*}

()

   * @return {*}
   */
  pop() {
    // Let's try to delete the first node (the head) from the linked list.
    // If there is no head (the linked list is empty) just return null.
    const removedHead = this.linkedList.deleteHead();
    return removedHead ? removedHead.value : null;
  }

  /**
   * @return {*[]}