Making a Bar Chart
This bar chart displays the population of the top 10 most populous countries, using 2018 estimates from the United Nations World Population Prospects 2017. The visualization uses D3 v5 scales, axes, and SVG rendering, with a linear scale for population and a band scale for countries. The code imports specific D3 functions including `scaleLinear`, `scaleBand`, `axisLeft`, and `axisBottom`, and customizes the x-axis tick format using the `format` helper to abbreviate numbers with suffixes. Data is loaded from a local CSV file, and the chart includes a title and axis label.