This example demonstrates core JavaScript array operations alongside D3’s `ascending` import, using a console-based workflow. It shows how `push`, `map`, and `reduce` manipulate arrays, including transforming a numeric range and converting an array of key-value objects into a single object. The code explicitly builds a custom `range` function and logs outputs to the console, while the included D3 dependency remains unused in visible logic. The visualization relies on plain JavaScript execution rather than DOM rendering, with no graphical output generated.