This example demonstrates how to bind a simple numeric array to existing heading elements using D3 version 7. The static bar-chart-like display renders each value as blue text within `<h2>` tags, using the `selectAll` and `join` API to match data to nodes. The code imports the `select` function from D3 and applies the `.text()` and `.style()` methods to update content and color, with the dataset defined inline as an array of nine numbers.