How to make a table with 300,000 objects efficient and user-friendly?

When working with a table containing 300,000 objects, it is important to ensure performance and user convenience. Here are key approaches:

• Virtualization (virtual scroll): render only the rows visible to the user in the DOM, loading others as the user scrolls. This significantly reduces rendering load.

• Pagination: divide data into pages, loading and displaying a limited number of rows at a time.

• Lazy loading of data: load data from the server in parts as needed, rather than all at once.

• Rendering optimization: use memoization, React.memo, shouldComponentUpdate, or similar mechanisms to avoid unnecessary re-renders.

• Use of specialized libraries: such as react-window, react-virtualized, ag-Grid, which already implement virtualization and optimization.

• Server-side filtering and search: to avoid loading and processing all 300,000 objects on the client.

Example with React and react-window:

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

const Row = ({ index, style, data }) => (
  <div style={style}>
    {data[index].name}
  </div>
);

const MyTable = ({ items }) => (
  <List
    height={600}
    itemCount={items.length}
    itemSize={35}
    width={800}
    itemData={items}
  >
    {Row}
  </List>
);

This approach allows for efficient and user-friendly display of large lists.