BEGINNER • HTML and CSS Basics
UI Lab for landing page with animations #24
This lesson focuses on enhance type safety for a landing page with animations interface. You will use: npx create-react-app my-app | npm run dev | document.querySelector('.btn'). The content is designed for practical frontend development.
Code Example
// Test with React Testing Library
render(<ProductCard title="Test" price={99} />);
expect(screen.getByText('Test')).toBeInTheDocument();
// Objective: enhance type safetyCommands & References
- npx create-react-app my-app
- npm run dev
- document.querySelector('.btn')
Lab Steps
- Set up with: npx create-react-app my-app
- Build or refactor the component for the scenario.
- Validate accessibility and performance.
- Propose one improvement for production.
Exercises
- Add one accessibility enhancement.
- Implement one performance optimization.
- Write one unit test for this component.