The Complete React Developer Course (with Hooks and Redux) - Fetching Data from Firebase

This video tutorial covers how to fetch data from Firebase using two main methods: fetching data once with the 'once' method and setting up subscriptions with the 'on' method. It explains how to handle data changes and unsubscribe from them using the 'off' method. The tutorial includes a practical challenge to reinforce learning and concludes with a summary of the key concepts.

What is the purpose of the 'once' method in Firebase?

How can you change data in Firebase and see the changes reflected in your application?

What happens when you unsubscribe from a Firebase data reference?

How do you access nested properties in a Firebase snapshot?