This example shows a React-based data visualization that renders a network of interconnected nodes using D3’s force simulation. The code uses `d3.forceSimulation` with collision, link, and many-body forces to position the nodes, while SVG circles and lines are drawn for the graph elements. The visualization updates continuously as the simulation runs, with nodes colored by their degree and links shown as gray lines. It demonstrates a straightforward integration of D3’s force layout within a React component, relying on `useEffect` and `useRef` to manage the simulation lifecycle.