This example shows a bar chart built with D3.js, displaying numeric values as vertical bars with corresponding value labels above each bar. It reads from an embedded dataset of eight numbers and renders them using SVG rectangles via `d3.select`, `selectAll`, and `data().enter().append()`. The chart sets fixed width and height attributes, calculates bar widths based on dataset length, and positions bars with a `translate` transform. Text elements display each value in a distinct color. The code uses the `d3.v5` library and is structured with React-ready starter files.