Step 2: Up to this point, you've written code that runs in a person's browser, which is called client-side code. A client is a user with a browser. To have clients share information with each other, you can write server-side code. A server is a central computer that multiple clients can send requests to. To write server-side code, you can use Node.js, which is a JavaScript runtime that can run JavaScript code outside of a browser. For now, add the following:

console.log(`hello world`)

Click the run button, and notice the message on the right. This is the server console.