This example visualizes temperature over time with a line chart. The SVG rendering plots a line and points connecting daily temperature readings, with axes and tick labels generated from the data. Built with React and D3 v5, it uses `scaleLinear` for scaling, `line` from D3 for the path, and `timeFormat` for tick labels. The data is loaded as CSV from a remote URL using D3's `csv` utility, and React state manages the asynchronous data fetching.