This example visualizes country populations as horizontal bars using D3.js v5 within a React framework, rendering to SVG. The bar chart displays each country’s population on the x-axis and country names on the y-axis, with bar widths scaled linearly via `d3.scaleLinear` and positions set by `d3.scaleBand`. The code loads data from a CSV file, multiplies population values by 10, and appends rectangles to the SVG. The visualization uses `d3.csv` for data loading and `d3.max` to determine the scale domain.