This example renders a scatter plot using D3 version 6 within a React-compatible setup, drawing circles with SVG. It loads the Iris dataset from a GitHub Gist, parses numeric fields, and maps petal length to the x-axis and sepal length to the y-axis using `d3.csv` and `d3.scaleLinear`. The code uses `d3.extent` for domain calculation and `d3.select` to append and join circle elements, with each point positioned via scaled coordinates.