This example demonstrates a line chart built with React hooks and D3.js, where a fixed dataset of twelve values is rendered as a smoothed cardinal curve. The visualization updates dynamically through two interactive buttons: "Update Data" increments each point by a constant value, while "Filter Data" removes all points exceeding a threshold. The code initializes the SVG using a React `useRef` hook, then applies D3's `scaleLinear`, `axisBottom`, `axisRight`, and `line` with `curveCardinal` to draw axes and the path. State management relies on `useState`, with effects triggered by the `useEffect` hook responding to data changes.