Customizing Axes
This bar chart displays the top 10 most populous countries using 2018 population estimates from the United Nations World Population Prospects, with a linear scale for population and a band scale for country names. The visualization customizes D3 axes by removing domain lines, styling tick marks in red, and adding labels for both axes and a title. It uses d3.csv to load data, d3.scaleLinear, d3.scaleBand, d3.axisLeft, and d3.axisBottom, with tick formatting that converts billions to a readable "B" suffix.