What is the purpose of the 'once' method in Firebase?
The Complete React Developer Course (with Hooks and Redux) - Fetching Data from Firebase
Interactive Video
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Information Technology (IT), Architecture
•
University
•
Hard
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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.
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4 questions
Show all answers
1.
OPEN ENDED QUESTION
3 mins • 1 pt
Evaluate responses using AI:
OFF
2.
OPEN ENDED QUESTION
3 mins • 1 pt
How can you change data in Firebase and see the changes reflected in your application?
Evaluate responses using AI:
OFF
3.
OPEN ENDED QUESTION
3 mins • 1 pt
What happens when you unsubscribe from a Firebase data reference?
Evaluate responses using AI:
OFF
4.
OPEN ENDED QUESTION
3 mins • 1 pt
How do you access nested properties in a Firebase snapshot?
Evaluate responses using AI:
OFF
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