Question bank
React question bank
React topics to master, by area.
Difficulty mix 75 questions · 12 categories
- Easy 15 20%
- Medium 43 57%
- Hard 17 23%
Pick a category and work it top to bottom. Your progress is remembered per category, in this browser. Read the React guide →
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React Core
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React Hooks
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Performance
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State Management
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Patterns
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Testing
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JS Fundamentals
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Async & Promises
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JS Patterns
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DOM & Browser
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TypeScript
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Build & Tooling
Where to go next
📚 Learn & practice
Prompts get you drilling; these get you learning. Hand-picked, canonical sources — read the concept, then go deep.
Read
- react.dev — Learn react.dev
The official docs, rebuilt around hooks & mental models.
- react.dev — Reference react.dev
Every hook and API, precisely.
- Overreacted — Dan Abramov overreacted.io
Deep intuition on rendering, effects, and closures.
- A Complete Guide to useEffect overreacted.io
The article that finally makes effects click.
- patterns.dev — React patterns patterns.dev
Component & rendering patterns with examples.