Question 1

What is the main advantage of code splitting in a React Native application?

Accepted Answer

Code splitting reduces the initial bundle size by loading only the code needed at startup. Other modules are loaded on demand, which significantly improves application launch time. This is particularly beneficial for large applications with many features.

Question 2

How to implement lazy loading of a component with React.lazy in React Native?

Accepted Answer

React.lazy allows dynamically loading a component by wrapping it with a function that returns a dynamic import. The component must then be wrapped in a Suspense with a fallback to handle the loading state. This approach defers loading heavy components until they are actually needed.

Question 3

What is a worklet in the context of React Native Reanimated?

Accepted Answer

A worklet is a JavaScript function executed on the native UI thread rather than the main JavaScript thread. This enables smooth 60fps animations because animation calculations are not blocked by other JavaScript operations. Worklets are identified by the 'worklet' directive at the beginning of the function.

Advanced Topics

What is the main advantage of code splitting in a React Native application?

Resposta

How to implement lazy loading of a component with React.lazy in React Native?

Resposta

What is a worklet in the context of React Native Reanimated?

Resposta

In React Native, on which main threads does the application run?

What is the difference between useSharedValue and useState for animations with Reanimated?

Outros temas de entrevista React Native

JavaScript Essentials

React Fundamentals

React Native Basics

React Hooks

TypeScript for React & React Native

React Native Components & API

React Native Styling & Layout

React Native Navigation

React Native State Management

React Native Networking & API

Data Persistence

Forms & Validation

React Native Animations

Native Modules & Bridge

Platform-Specific Code

Permissions & Device APIs

Push Notifications

React Native Testing

React Native Debugging

Build & Deployment

Expo vs React Native Bare

Performance Optimization

Memory Management

Architecture Patterns

React Native New Architecture

Security Best Practices

Offline-First Architecture

React Native CI/CD

Monorepo & Code Sharing

App Lifecycle & Background Execution

Authentication & Session Management

Monitoring & Crash Reporting

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