fec-list-virtualization

To improve large list scroll performance in React, apply list virtualization to render only visible DOM items within the scroll window. This reduces excessive DOM nodes, lowers memory usage, and eliminates scroll lag.

Yes, list virtualization supports variable item heights by applying dynamic item measurement. This handles uneven content sizes while maintaining accurate scroll positioning and smooth rendering across large datasets.

The best way to implement infinite scrolling with large datasets is to separate data fetching from DOM virtualization. This approach prioritizes rendering visible items while asynchronously loading new data as the user scrolls.

Yes, you can use react-window or TanStack Virtual to implement grid virtualization. They window both rows and columns, ensuring smooth scrolling performance across large, complex grid layouts in frameworks like React.

To maintain keyboard navigation and accessibility with virtualized lists, you must implement stable keys and ensure proper ARIA attributes. This guarantees screen readers and keyboard focus manage dynamic DOM items correctly during scrolling.