Frontend Drill for dashboard with charts #26

Code Example

// Custom hook
function usedashboardwithchartsFilter() {
  const [filters, setFilters] = useState({});
  const filtered = useMemo(() => 
    applyFilters(data, filters), 
    [data, filters]
  );
  return { filtered, setFilters };
}

// reduce bundle size

Commands & References

• npm run dev
• document.querySelector('.btn')
• npx create-react-app my-app

Lab Steps

1. Set up with: npm run dev
2. Build or refactor the component for the scenario.
3. Validate accessibility and performance.
4. Propose one improvement for production.

Exercises

• Add one accessibility enhancement.
• Implement one performance optimization.
• Write one unit test for this component.