EAS Build (Expo) in React Native - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is EAS Build in Expo?

EAS Build is a service by Expo that helps you build your React Native app in the cloud, so you don't need to set up complicated build tools on your computer.

beginner

How does EAS Build improve the app development process?

It saves time by building apps on powerful servers, handles native code compilation, and lets you get ready-to-publish app files without managing local build environments.

intermediate

What file do you configure to customize EAS Build settings?

You use the eas.json file in your project root to set build profiles and options for EAS Build.

beginner

What command starts a build with EAS Build?

You run eas build --platform ios or eas build --platform android in your terminal to start building your app for iOS or Android.

intermediate

Why is EAS Build useful for teams working on React Native apps?

Because it provides consistent builds for everyone, avoids local setup issues, and speeds up the process by using cloud servers.

What does EAS Build do?

A Runs your app on a device

B Creates app UI components

C Builds your app in the cloud

D Publishes your app to stores automatically

EAS Build compiles your app in the cloud, not runs or publishes it automatically.

Which file configures EAS Build settings?

A build.config

B package.json

C app.json

D eas.json

The eas.json file is used to set build profiles and options.

How do you start an Android build with EAS?

A eas build --platform android

B expo start android

C npm run build-android

D eas start android

The correct command is eas build --platform android.

Which is NOT a benefit of EAS Build?

A Automatic app publishing to stores

B Faster builds using cloud servers

C Consistent builds for teams

D No local build setup needed

EAS Build does not automatically publish apps to stores.

EAS Build is part of which ecosystem?

A React Native CLI

B Expo

C Flutter

D Android Studio

EAS Build is a service provided by Expo for React Native apps.

Explain how EAS Build helps simplify building React Native apps.

Think about how building apps locally can be tricky and how EAS Build changes that.

Describe the role of the eas.json file in EAS Build.

Consider where you tell EAS Build how to build your app.