JavaScript Masterclass - Zero to Job-Ready with Hands-On Projects - Snapshots / 258

This lecture introduces the concept of using the onSnapshot method in Firebase to automatically update data in real-time whenever changes occur, such as adding or deleting items. The instructor demonstrates how to implement onSnapshot, access and manipulate data, and create a movie array. The lecture concludes with a preview of the next topic, which will cover querying and filtering data.

How does the onSnapshot method handle real-time updates in a Firebase database?

What happens when a document is deleted while using the onSnapshot method?

In what scenarios might you prefer using onSnapshot over getDocs?