This visualization displays the raw values of the Iris dataset as a JSON stream, loading the data from a CSV file and converting its numeric fields. The code uses D3’s `select` and `csvParse` to fetch and parse the data, then renders it via a `join` operation into a `pre` element. It demonstrates a minimal state-based data-loading pattern, transitioning from an undefined state to a 'LOADING' state before displaying the parsed array of objects.