Customizing Axes
This bar chart displays the population of the top 10 most populous countries using 2018 data from the United Nations World Population Prospects, with values multiplied by 1,000. It highlights D3 axis customization, using `d3.axisBottom` and `d3.axisLeft` with tick formatting that converts large numbers to abbreviations like "B" for billions. The chart removes default axis lines and gridlines, adding custom tick styling and labels via CSS. It uses D3’s `scaleBand` for Y-axis categories and `scaleLinear` for X-axis values, rendered as an SVG.