This example demonstrates a bar chart with an interactive dropdown menu, though the dropdown itself is not implemented in the shown code. Instead, it focuses on JavaScript modules handling asynchronous data loading. The `getCars.js` module simulates a two-second delay with a Promise and returns an array of car objects parsed from embedded JSON. The `generateReport.js` module filters cars by price and formats them with `formatCar.js`. The `index.js` file displays a loading message, then renders the filtered list using `document.getElementById` and text content updates.