This example demonstrates a dynamic line chart created with D3, where 15 points oscillate vertically over time based on a sine function. The visualization uses D3's `select` and `range` APIs to build an SVG canvas and animate both circles and a connected path. Using D3's `.join()` method, the code efficiently updates element attributes on each frame, with a `setInterval` timer driving the animation at 20ms intervals. The implementation uses the React framework and renders purely through SVG elements, with the data generated procedurally from a mathematical function rather than external sources.