{"version":"1.0","type":"rich","title":"都道府県別の人口\n  <style>\n      body {\n        margin: 0;\n        overflow: hidden;\n      }\n      pre {\n        font-size: 7em;\n      }\n    </style>","description":"This example displays Japanese population data by prefecture from a CSV file, initially showing a loading message while fetching the data. The visualization uses React with hooks like `useState` and `useEffect` to manage asynchronous data loading via the `csv` function from d3.v5. The code processes each row to extract the prefecture name and concatenates them into a message string, which is then rendered as large text in a `<pre>` element. The layout of the page is a map of Japan, but the code focuses on printing the prefecture names as a text-based output.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/548cfbf6d449497ca2c71f8be6b68bf1?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}