This example demonstrates sorting arrays with D3, showing both numeric and object-based data. It uses `d3.ascending` and `d3.descending` to sort numbers in ascending or descending order, and also sorts arrays of objects by their key or value properties using custom comparator functions. The code, written in JavaScript with the d3 library (v7.8.2), logs the sorted results to the console, comparing D3’s sort methods against manual comparison logic.