Node.js · Junior · Question 57 of 75

What does this code do?

import http from "node:http";

http
  .createServer((req, res) => {
    res.writeHead(200, { "Content-Type": "text/plain" });
    res.end("Hello");
  })
  .listen(3000);

1Sends one request to port 3000
✓Correct answer: Starts an HTTP server on port 3000 that answers every request with Hello
3Starts a server that only answers GET /

Explanation

The callback runs for every request, whatever the method or URL. Routing by req.method and req.url is up to you, which is why frameworks like Express exist.

Further reading

Node.js API: HTTP ↗

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