Let's make a face with D3.js!
This visualization demonstrates a smiley face whose eyebrows move, created through fundamental DOM manipulation with D3.js. The face is rendered as SVG elements, with the eyebrow animation driven by data mapping. The code uses D3's `select`, `scaleLinear`, and `max` functions to process population data from a CSV file, which controls the width of rectangles representing the face’s features. The project relies on D3 v5 and is embedded in a simple HTML page with inline styles, showcasing basic data binding and SVG attribute updates.