A bar chart displays daily COVID-19 cases in New York City from February to May 2020, using a black-and-orange color scheme. The chart uses D3's `scaleBand` for the date axis and `scaleLinear` for the case count axis, rendering SVG rectangles. Hovering over a bar triggers a custom tooltip via the `d3.tip` library, showing the exact date and case number. Data from NYC Health data is loaded from a CSV file.