barchart
This visualization displays a horizontal bar chart of the top 10 most populous countries, using data from the United Nations World Population Prospects 2019. Bars are drawn as SVG rectangles, with lengths proportional to each country's 2020 population. The chart uses React with D3 v5 for data fetching and scaling, specifically employing `d3.csv` for parsing the dataset, `d3.scaleBand` for y-axis positioning, and `d3.scaleLinear` for x-axis lengths. No axes or labels are included.