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This example renders a map of the United States using D3’s `geoAlbers` projection and `geoPath` to draw both national land boundaries and state interiors. TopoJSON data from `us-atlas@3` is loaded with `d3.json` and converted via `feature` and `mesh` from the topojson library. The SVG output, styled with CSS, fills land in red, state borders in green, and includes a blue circle mark. React manages the component state and data loading through the `useState` and `useEffect` hooks.
AI-generated descriptionA bare minimum HTML page demonstrating use of CSS and JavaScript.
See also React Starter.
MIT Licensed