Write Your First Cloudflare Workers Serverless Function

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We'll take a look at the default code in index.js in a Workers project. We'll take a second to understand how it works before building the rest of our project.

First will see what our Worker looks like in an actual browser by running wrangler preview. In a terminal, and we'll check out how Serverless functions in Cloudflare Workers listen for HTTPS requests via the "fetch" event and respond to them by creating and returning a new Response.