Turbo Modules overview in React Native - Cheat Sheet & Quick Revision

Recall & Review

beginner

What are Turbo Modules in React Native?

Turbo Modules are a new system in React Native that makes native modules faster and more efficient by using a modern architecture and lazy loading.

intermediate

How do Turbo Modules improve app performance?

They reduce startup time by loading native modules only when needed and use a faster communication bridge between JavaScript and native code.

intermediate

What technology does Turbo Modules use to communicate between JavaScript and native code?

Turbo Modules use the JavaScript Interface (JSI), which allows direct calls between JavaScript and native code without going through the old bridge.

beginner

Why is lazy loading important in Turbo Modules?

Lazy loading means modules load only when needed, which saves memory and speeds up app startup, making the app feel faster.

intermediate

Can Turbo Modules work with existing native modules?

Yes, Turbo Modules can coexist with older native modules, allowing gradual migration without breaking the app.

What is the main benefit of Turbo Modules in React Native?

A Faster communication between JavaScript and native code

B More colorful UI components

C Automatic app updates

D Built-in animations

Turbo Modules improve performance by enabling faster communication between JavaScript and native code.

Which technology do Turbo Modules use to replace the old bridge?

A GraphQL

B XML

C REST API

D JSI (JavaScript Interface)

Turbo Modules use JSI to allow direct calls between JavaScript and native code.

What does lazy loading in Turbo Modules help with?

A Downloading app updates

B Loading modules only when needed

C Preloading all modules at startup

D Increasing app size

Lazy loading means modules load only when needed, improving startup speed and saving memory.

Can Turbo Modules be used alongside older native modules?

A Yes, they can coexist

B No, they must replace old modules

C Only on Android

D Only on iOS

Turbo Modules can coexist with older native modules, allowing gradual migration.

Which of these is NOT a feature of Turbo Modules?

A Faster startup time

B Lazy loading

C Automatic UI theming

D Direct JavaScript to native calls

Turbo Modules focus on performance and communication, not UI theming.

Explain what Turbo Modules are and how they improve React Native app performance.

Think about how native modules communicate with JavaScript and how loading on demand helps.

Describe how Turbo Modules can be integrated into an existing React Native app with older native modules.

Consider how apps can upgrade without rewriting everything at once.