This example uses React with D3 v6 to generate an SVG visualization of intersecting horizontal and vertical stripes. The code creates 100 rectangular bands in each direction, then applies two SVG masks: a diamond-shaped mask formed with a `d3.symbol` path, and a circular mask created with a basic SVG circle. The masks reveal the underlying stripes in geometric patterns, demonstrating how D3's `select`, `range`, and `join` methods can construct layered SVG elements with custom clipping. The visualization dynamically fills the browser window using `window.innerWidth` and `window.innerHeight`.