This example displays a bar chart of sales figures for 100 products (P1–P100), with each bar’s height representing its numeric sales value. The visualization is rendered as SVG elements, with D3.js v7 handling data loading via `d3.csv`, linear scales, and axis generation. The React app uses a `ResizeObserver` to dynamically size the chart and re-renders the visualization when the container dimensions change, ensuring responsive scaling.