Making a Bar Chart
This bar chart displays the population of the top 10 most populous countries, using 2018 data from the United Nations World Population Prospects. The visualization uses D3 v5 with an SVG rendering, employing `scaleLinear` and `scaleBand` for axes, with `axisBottom` and `axisLeft` to generate customized ticks and gridlines. Population values are read from a CSV file, multiplied by 1000, and bars are drawn as `rect` elements with a steelblue fill, while a custom tick formatter converts large numbers to abbreviated notation.