Export useCachedBounds hook as part of public API

[bvaughn]

Possible alternative to #866

import { List, useCachedBounds } from "react-window";

function Example({ items }) {
  const cachedBounds = useCachedBounds({
    itemCount: items.length,
    itemProps: { items },
    itemSize: 25,
  });

  const rowHeightFunction = useCallback((index:number)=> {
    return cachedBounds.get(index).size;
  },[cachedBounds])

  return <List
    rowCount={items.length}
    rowHeight={rowHeightFunction}
    rowProps={{ items }}
    {...rest}
  />

  // ...
}

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Project	Deployment	Preview	Updated (UTC)
react-window	Ready	Preview	Oct 9, 2025 2:00am