Fork of Circles with D3
This example demonstrates how to create and dynamically manipulate SVG shapes using D3.js. It builds an SVG element sized to its container and renders a collection of circles, each positioned and styled through data-bound attributes like `cx`, `cy`, `r`, and `fill`. The code leverages core D3 APIs including `select`, `selectAll`, and `join` to implement the General Update Pattern for creating and updating elements. A static JavaScript array of objects supplies the circle properties, showcasing method chaining for concise attribute assignment.