# Native Modules & Bridge (React Native)

> Native modules, Turbo Modules, JSI, iOS/Android 브리징, 서드파티 모듈

- 20 면접 질문
- Mid-Level
- [면접 질문: React Native](https://sharpskill.dev/ko/technologies/react-native/interview-questions.md)

## 1. React Native에서 native module이란 무엇인가요?

**답변**

native module은 네이티브 언어(iOS는 Objective-C/Swift, Android는 Java/Kotlin)로 작성된 코드로, 기능을 JavaScript 코드에 노출합니다. 이를 통해 생체 인식 센서나 Bluetooth처럼 React Native에서 직접 사용할 수 없는 네이티브 API에 접근할 수 있습니다.

## 2. React Native의 전통적인 아키텍처에서 bridge의 역할은 무엇인가요?

**답변**

bridge는 전통적인 아키텍처에서 JavaScript 스레드와 네이티브 스레드 간의 통신 메커니즘입니다. 데이터를 JSON으로 직렬화하여 두 환경 간에 비동기적으로 전송합니다. 이 비동기 통신은 빈번한 작업에서 지연을 유발할 수 있습니다.

## 3. 구 아키텍처에서 iOS의 네이티브 메서드를 JavaScript에 노출하려면 어떻게 하나요?

**답변**

구 아키텍처의 iOS에서는 NSObject를 상속하고 RCTBridgeModule 프로토콜을 구현하는 클래스를 만들어야 합니다. RCT_EXPORT_MODULE() 매크로가 모듈을 등록하고, RCT_EXPORT_METHOD()가 각 메서드를 JavaScript에 노출합니다. 이 매크로들이 필요한 bridging 코드를 생성합니다.

## 17개 추가 질문 이용 가능

- 구 아키텍처에서 Android의 네이티브 메서드를 노출하려면 어떤 어노테이션을 사용하나요?
- React Native의 새 아키텍처에서 JSI(JavaScript Interface)란 무엇인가요?

무료로 가입하기: https://sharpskill.dev/ko/login

## 기타 React Native 면접 주제

- [JavaScript 핵심](https://sharpskill.dev/ko/technologies/react-native/interview-questions/javascript-essentials.md): 25개 질문, Junior
- [React 기초](https://sharpskill.dev/ko/technologies/react-native/interview-questions/react-fundamentals.md): 20개 질문, Junior
- [React Native 기초](https://sharpskill.dev/ko/technologies/react-native/interview-questions/react-native-basics.md): 22개 질문, Junior
- [React Hooks](https://sharpskill.dev/ko/technologies/react-native/interview-questions/react-hooks.md): 20개 질문, Junior
- [React 및 React Native를 위한 TypeScript](https://sharpskill.dev/ko/technologies/react-native/interview-questions/typescript-for-react-native.md): 22개 질문, Junior
- [React Native 컴포넌트 및 API](https://sharpskill.dev/ko/technologies/react-native/interview-questions/rn-components-api.md): 20개 질문, Junior
- [React Native 스타일링 및 레이아웃](https://sharpskill.dev/ko/technologies/react-native/interview-questions/rn-styling-layout.md): 18개 질문, Junior
- [React Native 내비게이션](https://sharpskill.dev/ko/technologies/react-native/interview-questions/rn-navigation.md): 22개 질문, Mid-Level
- [React Native 상태 관리](https://sharpskill.dev/ko/technologies/react-native/interview-questions/rn-state-management.md): 24개 질문, Mid-Level
- [React Native 네트워킹 및 API](https://sharpskill.dev/ko/technologies/react-native/interview-questions/rn-networking-api.md): 20개 질문, Mid-Level
- [데이터 영속성](https://sharpskill.dev/ko/technologies/react-native/interview-questions/rn-data-persistence.md): 20개 질문, Mid-Level
- [폼과 유효성 검사](https://sharpskill.dev/ko/technologies/react-native/interview-questions/rn-forms-validation.md): 18개 질문, Mid-Level
- [React Native 애니메이션](https://sharpskill.dev/ko/technologies/react-native/interview-questions/rn-animations.md): 22개 질문, Mid-Level
- [플랫폼별 코드](https://sharpskill.dev/ko/technologies/react-native/interview-questions/rn-platform-specific-code.md): 18개 질문, Mid-Level
- [권한 및 디바이스 API](https://sharpskill.dev/ko/technologies/react-native/interview-questions/rn-permissions-apis.md): 20개 질문, Mid-Level
- [Push Notifications](https://sharpskill.dev/ko/technologies/react-native/interview-questions/rn-push-notifications.md): 18개 질문, Mid-Level
- [React Native 테스팅](https://sharpskill.dev/ko/technologies/react-native/interview-questions/rn-testing.md): 20개 질문, Mid-Level
- [React Native 디버깅](https://sharpskill.dev/ko/technologies/react-native/interview-questions/rn-debugging.md): 18개 질문, Mid-Level
- [Build & Deployment](https://sharpskill.dev/ko/technologies/react-native/interview-questions/rn-build-deployment.md): 20개 질문, Mid-Level
- [Expo vs React Native Bare](https://sharpskill.dev/ko/technologies/react-native/interview-questions/expo-vs-bare-rn.md): 18개 질문, Mid-Level
- [성능 최적화](https://sharpskill.dev/ko/technologies/react-native/interview-questions/rn-performance-optimization.md): 24개 질문, Senior
- [메모리 관리](https://sharpskill.dev/ko/technologies/react-native/interview-questions/rn-memory-management.md): 20개 질문, Senior
- [Architecture Patterns](https://sharpskill.dev/ko/technologies/react-native/interview-questions/rn-architecture-patterns.md): 22개 질문, Senior
- [React Native New Architecture](https://sharpskill.dev/ko/technologies/react-native/interview-questions/rn-new-architecture.md): 24개 질문, Senior
- [보안 모범 사례](https://sharpskill.dev/ko/technologies/react-native/interview-questions/rn-security-best-practices.md): 20개 질문, Senior
- [Offline-First Architecture](https://sharpskill.dev/ko/technologies/react-native/interview-questions/rn-offline-first.md): 20개 질문, Senior
- [React Native CI/CD](https://sharpskill.dev/ko/technologies/react-native/interview-questions/rn-ci-cd.md): 20개 질문, Senior
- [Monorepo와 코드 공유](https://sharpskill.dev/ko/technologies/react-native/interview-questions/rn-monorepo-architecture.md): 18개 질문, Senior
- [고급 주제](https://sharpskill.dev/ko/technologies/react-native/interview-questions/rn-advanced-topics.md): 22개 질문, Senior
- [앱 라이프사이클 및 백그라운드 실행](https://sharpskill.dev/ko/technologies/react-native/interview-questions/rn-app-lifecycle-background.md): 20개 질문, Mid-Level
- [인증 및 세션 관리](https://sharpskill.dev/ko/technologies/react-native/interview-questions/rn-auth-session-management.md): 22개 질문, Mid-Level
- [Monitoring & Crash Reporting](https://sharpskill.dev/ko/technologies/react-native/interview-questions/rn-monitoring-crash-reporting.md): 20개 질문, Senior

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