Making a Bar Chart
This bar chart displays the populations of the top 10 most populous countries, using 2018 estimates from the United Nations World Population Prospects. The visualization uses D3 v5 with SVG rendering, employing `scaleLinear` for the x-axis, `scaleBand` for the y-axis, and `axisLeft` and `axisBottom` for the axes. Data is loaded from a CSV file, with population values multiplied by 1000. Rectangles are appended and styled with a steelblue fill to represent each country’s population.