The islands approach flips the default: the page is static HTML, and only the parts that need to be interactive get JavaScript. The rest stays light.
Pay only for interaction
For content sites and marketing pages this is ideal: fast loads, strong SEO, and no megabytes of JavaScript for text that does nothing.
Our take
The right tool depends on the product. For content-driven web, less JavaScript is almost always better — and this approach makes that the default.
