Node.js · Theory

urlObject.port API Property

Theory

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urlObject.port API Property

urlObject.port API Property sits in a viva board. Kabir’s job is urlObject.port API Property on Kabir's board. Write that first.

urlObject.port API Property on the board: one urlObject.port API Property step Kabir can write from memory. Then say what urlObject.port API Property on Kabir's board looks like after.

Without urlObject.port API Property, a viva board gets messy and urlObject.port API Property on Kabir's board is hard to trust.

urlObject.port API Property shows up in a viva board. Name urlObject.port API Property on Kabir's board, not “a real-world scenario”.

Don’t do this with urlObject.port API Property: copy-pasting urlObject.port API Property without a dry-run. Interviewers spot it in ten seconds.

Place urlObject.port API Property next to nearby Node.js work — one urlObject.port API Property step Kabir can write from memory is the link.

Viva for urlObject.port API Property: what it is → one urlObject.port API Property step Kabir can write from memory → the mistake (copy-pasting urlObject.port API Property without a dry-run).

Exam tip

Say urlObject.port API Property in one breath, then one urlObject.port API Property step Kabir can write from memory, then copy-pasting urlObject.port API Property without a dry-run.

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" }));

urlObject.port API Property — http.createServer handles each request with (req, res). Express sits on top of this.

Short notes

DefurlObject.port API Property — Kabir uses it for urlObject.port API Property on Kabir's board in a viva board.
RuleurlObject.port API Property → one urlObject.port API Property step Kabir can write from memory.
RememberurlObject.port API Property + an Express route (a viva board).
UseurlObject.port API Property in a viva board (urlObject.port API Property on Kabir's board).
TrapurlObject.port API Property — copy-pasting urlObject.port API Property without a dry-run.
ExurlObject.port API Property → urlObject.port API Property on Kabir's board.

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" }));

urlObject.port API Property

Example

Short notes

Questions

urlObject.port API Property

Example

Short notes

Questions