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React

Build real, componentized user interfaces — from JSX fundamentals to data fetching, custom hooks, and production-ready structure. Each course below is independent -- start with whichever one fits what you want to learn.

React Application Development

Build real, componentized user interfaces with React: state, effects, data fetching, custom hooks, accessibility, and a maintainable project structure.

14 lessons8hintermediate
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  1. 1. Component Thinking: Breaking a UI into Pieces
  2. 2. JSX and Rendering: UI as an Expression
  3. 3. Props: Passing Data Down, One Way
  4. 4. Handling Events in React
  5. 5. State: Giving Components Memory
  6. 6. Conditional Rendering, Lists, and Stable Keys
  7. 7. Controlled Forms and Validation
  8. 8. Loading, Empty, Error, and Success States
  9. 9. Effects: Synchronizing with the Outside World
  10. 10. Fetching Data: Races, Stale Responses, and Cleanup
  11. 11. Composition and Custom Hooks
  12. 12. Context, State Ownership, and Project Organization
  13. 13. Accessibility and Testing React Components
  14. 14. Performance, Error Handling, and Maintainable Architecture