📱 Interview Prep

React Native

Components and styling, the new architecture, hooks, list performance, navigation, native modules, storage, animations, testing and shipping to the app stores.

📘 Learn it from scratch

Visual, hands-on lessons for every pattern in this topic. Do the lesson, then come back and the questions click.

Thinking in React: UI = f(state)State, Events & ReducersHTTP: Requests & ResponsesUnit Testing & Test-Driven Development

100 questions, most asked first

Ordered so the most useful questions for learning each pattern come first.

Any difficulty Easy Medium Hard

All patterns Fundamentals Architecture Lists & performance Build & release Navigation State & hooks Native modules & platform Networking & storage Animations & gestures Testing & debugging Security

#1What is React Native, and how is it different from React?FundamentalsEasyFree #3FlatList vs ScrollViewLists & performanceEasyFree #4Styling and Flexbox in React NativeFundamentalsEasyFree #5Expo vs bare React NativeBuild & releaseEasyFree #8Writing platform-specific codeNative modules & platformEasyFree Unlock 23 more React Native questions · all 1,200 questions for $39/year (about 11¢ a day)See full access #15Handling the keyboard and safe areasFundamentalsEasy🔒#19Debugging a React Native appTesting & debuggingEasy🔒#21Props vs state, and what triggers a re-renderFundamentalsEasy🔒#22The core components and how they map to native viewsFundamentalsEasy🔒#23Pressable vs the Touchable componentsFundamentalsEasy🔒#27Fetching data from an APINetworking & storageEasy🔒#28Forms and TextInputFundamentalsEasy🔒#30Asking for permissionsNative modules & platformEasy🔒#31What is useRef for?State & hooksEasy🔒#38Foreground, background and AppStateNative modules & platformEasy🔒#45Grouped lists with SectionListLists & performanceEasy🔒#47Modals and bottom sheetsNavigationEasy🔒#54TypeScript in React NativeFundamentalsEasy🔒#57Version numbers and build numbersBuild & releaseEasy🔒#60What does Metro do?ArchitectureEasy🔒#67Camera, photos and mediaNative modules & platformEasy🔒#73Dark mode and themingFundamentalsEasy🔒#74Custom fonts, icons and imagesFundamentalsEasy🔒#75Splash screens and app iconsBuild & releaseEasy🔒#77The Android back button and gesturesNavigationEasy🔒#80When to use a WebViewNative modules & platformEasy🔒#81Why list keys matterLists & performanceEasy🔒#88React Native vs native vs FlutterFundamentalsEasy🔒