Fork of Circles with D3
This example demonstrates a colorful scatter of circles rendered on a light green background using the D3.js library. It showcases the D3 general update pattern and method chaining to create and style SVG elements. The code uses `d3.select` to manage the SVG container and defines an array of circle objects with explicit `x`, `y`, `r`, and `fill` properties. Each circle’s position, radius, and color are mapped directly from this static data array using `.attr()` methods, with a fixed opacity applied to all circles.