This example presents a static bar chart of GDP data, with each bar’s height representing a country’s economic output. The visualization uses D3.js to bind data to SVG elements, scale the bars with `d3.scaleLinear`, and apply a color scale to differentiate values. The chart is rendered inside a minimal React component, with the view instantiated via a simple `div` container. Bars are drawn using SVG `rect` elements, and the code leverages D3’s selection and data-join pattern to create the visualization.