these are written against the standard Service Workers API. The only difference is that they run on Cloudflare's edge rather than in the browser.
A "Cloudflare Worker" is JavaScript you write that runs on Cloudflare's edge. A "Cloudflare Service Worker" is specifically a worker which handles HTTP traffic and is written against the Service Worker API. Currently, this is the only kind of worker we've implemented, but in the future we may introduce other worker types for certain specialized tasks.
[3] Cloudflare Workers | サーバーレスアプリケーションを構築 | Cloudflare (2023-07-16T02:59:41.000Z, 2023-07-16T03:18:13.286Z) https://www.cloudflare.com/ja-jp/products/workers/
[4] Cloudflare Workers · Cloudflare Workers docs, 2023-07-16T03:43:03.000Z https://developers.cloudflare.com/workers/
[5] Cloudflare Workers, 2023-06-15T14:34:43.000Z, 2023-07-16T03:51:14.306Z https://cloudflareworkers.com/