Mysterious VizHub Error Debug Helper
This example demonstrates a minimal loading state for a data-driven visualization, showing a blank SVG canvas with the browser console logging the parsed population dataset from `data.csv`. It uses D3 v5’s `select` and `csv` methods to select the `svg` element, read its width and height attributes, and fetch the external CSV file asynchronously. The code includes import statements for `select` and `csv` from the D3 library, with the rendering targeted to SVG. The visualization currently displays no visual marks, only outputting the data array to the console for debugging purposes.