Vue.js 3 and Firebase for Beginners - Real-Time Pizza Updates

The video tutorial explains how to manage pizza entries in an admin panel using Firebase. Initially, adding a pizza requires a page refresh to update the menu, while deleting a pizza updates automatically. The tutorial introduces the onSnapshot method from Firebase to enable real-time updates, eliminating the need for manual refreshes. It demonstrates how to implement this method, handle data changes, and resolve issues like duplicate entries. The tutorial concludes with testing the implementation and ensuring the admin panel reflects real-time changes.

What is the purpose of the 'on snapshot' method in the context of this application?

Describe the steps taken to ensure that the application updates correctly after adding a new pizza.