This example shows confirmed COVID-19 cases on April 11, 2020, as a choropleth map of countries. The visualization uses Esri’s ArcGIS API for JavaScript to render a 2D MapView with a FeatureLayer, displaying the case counts with a streets-vector basemap. The map is centered globally at zoom level 1, and the feature layer is semi-transparent. The data originates from a Kaggle dataset, and the code includes an unused dropdown menu built with d3.v5, though the menu is not wired to any interaction.