{"version":"1.0","type":"rich","title":"Bar Chart w React and D3","description":"A bar chart displays United Nations population data for the top four countries by 2020 estimates. The graphic uses React’s `useState` and `useEffect` hooks to asynchronously fetch and parse a CSV via `d3.csv`, then renders SVG `<rect>` elements whose widths are scaled by `d3.scaleLinear` and vertical positions by `d3.scaleBand`. The horizontal bars are plotted against a fixed 960×500 viewport, with countries arranged from top to bottom in data order.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/8005c06e82174f2dbbf6db01994f47cd?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}