Javascript Programming Tutorials, Guides & Best Practices

import React from 'react';
import { FixedSizeList as List } from 'react-window';

const Row = ({ index, style }) => (
  <div style={style}>Row {index}</div>
);

function MyList({ itemCount }) {
  return (
    <List
      height={400}
      itemCount={itemCount}
      itemSize={35}
      width={300}
    >
      {Row}
    </List>
  );
}

export default MyList;

This approach drastically reduces the number of rendered DOM nodes, improving performance when dealing with large datasets.