React Native Study Guide 2026
Everything you need to pass the React Native exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 React Native Exam Format at a Glance
📚 React Native Topics to Study (57)
✍️ Sample React Native Questions & Answers
1. Which method would you call to programmatically dismiss the software keyboard in React Native?
Keyboard.dismiss() is the React Native API method that hides the software keyboard regardless of which input is currently focused.
2. Which strategy best mitigates the risk of a bad OTA (Over-The-Air) JavaScript update breaking production users?
Staged rollouts let you limit exposure, and automatic rollback based on crash rates limits blast radius if an update is broken.
3. What can you build with React?
React is a JavaScript library specifically designed for building user interfaces (UIs). It allows developers to create interactive and dynamic web and mobile application UIs by breaking them down into reusable components. While React can be part of a larger application, its core purpose is focused on the presentation layer and how users interact with the application.
4. What is a Drawer Navigator in React Navigation?
Drawer Navigator renders a navigation menu that slides in from the side of the screen, commonly used for app menus.
5. A real estate app shows property listings on a map with hundreds of markers. Performance degrades as markers increase. What is the solution?
Marker clustering reduces the number of rendered map elements by grouping nearby markers, dramatically improving map performance.
6. Which prop on a FlatList improves scroll performance by recycling list item views?
removeClippedSubviews unmounts views that scroll off-screen, reducing the number of active native views and improving performance.