Function deployment in Firebase - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is function deployment in Firebase?

Function deployment in Firebase means uploading your code to the cloud so it can run automatically when triggered.

beginner

Which command is used to deploy Firebase functions?

The command firebase deploy --only functions uploads your cloud functions to Firebase.

intermediate

Why should you test functions locally before deployment?

Testing locally helps catch errors early and ensures your function works as expected before using cloud resources.

intermediate

What happens if you deploy a function with the same name as an existing one?

The existing function is replaced with the new code, updating its behavior in the cloud.

beginner

Name one trigger type for Firebase functions.

An example trigger is an HTTP request, which runs the function when someone visits a URL.

Which command deploys only Firebase functions?

A firebase serve

B firebase init functions

C firebase deploy --only functions

D firebase login

The command firebase deploy --only functions uploads only the cloud functions.

What does deploying a function do?

A Deletes all functions

B Uploads code to run in the cloud

C Runs the function locally

D Creates a new Firebase project

Deployment uploads your function code to Firebase so it can run in the cloud.

If you deploy a function with the same name, what happens?

A The old function is replaced

B Both functions run simultaneously

C Deployment fails

D A new function with a different name is created

Deploying with the same name replaces the existing function.

Which is NOT a trigger for Firebase functions?

A Authentication event

B Database change

C HTTP request

D Local file save

Local file save is not a cloud trigger for Firebase functions.

Why test functions locally before deployment?

A To catch errors early

B To avoid writing code

C To deploy faster

D To skip billing

Testing locally helps find and fix errors before deploying.

Explain the steps to deploy a Firebase function from writing code to running it in the cloud.

Think about coding, testing, uploading, and triggering.

Describe what happens when you deploy a function with the same name as an existing one.

Consider how updates work in cloud deployments.