This example demonstrates how to import and manipulate JSON data within a D3.js module-based visualization, sorting city populations in ascending order and formatting a text list. It showcases ES6 module imports for local data files and a color array, alongside global D3.js v5 usage. The SVG element is populated via D3, while styles apply the Ubuntu font and large text. The code references `d3.min.js` from unpkg and exports parsed JSON objects like `cities2` and `p`.