This interactive map renders world countries as SVG paths using D3.js version 5 and the topojson library to convert TopoJSON to GeoJSON features. The map uses a D3 geoEqualEarth projection with geoPath, and supports zooming via d3’s zoom event, which applies a transform to the map group. Country names are joined from a TSV file using ISO numeric codes, and hovering fills a country in red.