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How can you efficiently grow a particular grid in a React application?

🟡 Medium Conceptual Junior level
1Times asked
Apr 2026Last seen
Apr 2026First seen

💡 Model Answer

To grow a grid efficiently in React, focus on minimizing re‑renders and optimizing rendering of large lists. Use React.memo or PureComponent to prevent unnecessary updates for grid cells that haven’t changed. Implement virtualization with libraries like react‑window or react‑virtualized so only visible rows/columns are rendered. Keep the grid data immutable; use useState or useReducer to update only the affected slice. Leverage useCallback and useMemo to memoize expensive calculations and event handlers. For dynamic column widths, use CSS Grid or Flexbox with minmax and auto-fill to let the browser handle layout efficiently. Avoid inline functions or objects in JSX that cause new references on each render. Finally, batch state updates and use requestIdleCallback for non‑critical work to keep the UI responsive.

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