Making a Bar Chart
This example displays a horizontal bar chart of population counts for ten countries, showing the relative magnitude of each nation’s population. The chart uses a linear x-scale for population values and a categorical y-scale for country names, rendered as SVG rectangles filled with steel blue. The visualization is built with D3 v5, using `scaleLinear`, `scaleBand`, `axisLeft`, and `axisBottom` to construct the scales and axes. Data is loaded from a CSV file (`TotalPop.csv`) using D3’s `csv` function, with values parsed to numbers before rendering.