response.writeHead() Method — Node.js Technical Interview Questions & Answers

response.writeHead() Method

response.writeHead() Method

  • response.writeHead() Method is a Node.js topic. In plain words you use it for a short response.writeHead Method example in a script or API on localhost. Don’t start with a slogan — start with that picture.
  • Smallest example: the smallest response.writeHead Method example you can type. Type it, run it, and say what you see. If you can do that from memory, you know response.writeHead() Method.
  • From the example next to this theory: response.writeHead() Method — http.createServer handles each request with (req, res). Express sits on top of this..
  • Trap: only saying “response.writeHead Method” with no example. Fix that before you talk about advanced Node.js.
  • Viva: what is response.writeHead() Method? Then show the smallest response.writeHead Method example you can type. Then name the trap.

Technical Interview Tip: What is response.writeHead() Method? Show this: the smallest response.writeHead Method example you can type. Trap: only saying “response.writeHead Method” with no example.

Code Examples for response.writeHead() Method

response.writeHead() Method — working example

const http = require("http");

const server = http.createServer((req, res) => {
  res.writeHead(200, { "Content-Type": "application/json" });
  res.end(JSON.stringify({ ok: true, path: req.url }));
});

// server.listen(3000);
console.log("handler ready for", "/api/health");
console.log(JSON.stringify({ ok: true, path: "/api/health" }));

response.writeHead() Method — http.createServer handles each request with (req, res). Express sits on top of this.

How to Explain response.writeHead() Method to an Interviewer

What is response.writeHead() Method?

Used for a short response.writeHead Method example a script or API on localhost Not just the heading

Give one small example of response.writeHead() Method.

the smallest response.writeHead Method example you can type response.writeHead() Method — http.createServer handles each request with (req, res). Express sits on top of this.

What mistake do beginners make with response.writeHead() Method?

only saying “response.writeHead Method” with no example Show the fix

Where do you use response.writeHead() Method?

a script or API on localhost a short response.writeHead Method example