This example shows a horizontal bar chart of population data for the top 10 countries, with axes rendered using D3 scales and React components. It loads data from a CSV file and uses `d3.csv`, `scaleBand`, and `scaleLinear` to map countries and populations to screen coordinates. React's `useState` and `useEffect` manage the loading state, while SVG elements are generated directly within the React component, mixing D3's axis ticks and gridlines with React-rendered `<rect>` bars.