This example tests the behavior of the JavaScript `XMLHttpRequest` object inside a React environment, rendering a single "Hello Js" message in large text. The code attempts two approaches: one creates an `XMLHttpRequest` and accesses a nested `.xhr` property, while the other directly instantiates it. Each instance has a `load` event listener added, though the page displays no data loading or visualization output. The example uses plain HTML, CSS for styling, and vanilla JavaScript with no external libraries like D3 or React components.