Node.js · Theory

dns.resolveNaptr(hostname, callback) function in Node.js

Theory

564/723

dns.resolveNaptr(hostname, callback) function in Node.js

dns.resolveNaptr(hostname, callback) function (in node js) sits in a script. Kabir’s job is read notes.txt. Write that first.

For dns.resolveNaptr(hostname, callback) function (in node js), an Express route is in play. Don’t blame it until you have traced read notes.txt.

dns.resolveNaptr(hostname, callback) function (in node js) exists so Kabir can keep read notes.txt correct in a script.

dns.resolveNaptr(hostname, callback) function (in node js) shows up in a script. Name read notes.txt, not “a real-world scenario”.

dns.resolveNaptr(hostname, callback) function (in node js) trap: callback hell, no error-first. Kabir loses marks for that every viva.

dns.resolveNaptr(hostname, callback) function (in node js) is not a lonely heading. Kabir ties it to read notes.txt.

Viva for dns.resolveNaptr(hostname, callback) function (in node js): what it is → (err, data) => … → the mistake (callback hell, no error-first).

Exam tip

Board: read notes.txt. Dry-run dns.resolveNaptr(hostname, callback) function (in node js). Name the trap: callback hell, no error-first.

Example

function wait(ms) {
  return new Promise((resolve) => setTimeout(resolve, ms));
}

(async () => {
  console.log("start");
  await wait(50);
  console.log("done");
})();

dns.resolveNaptr(hostname, callback) function in Node.js — async/await sits on Promises — cleaner than nested callbacks.

Short notes

Defdns.resolveNaptr(hostname, callback) function (in node js) — Kabir uses it for read notes.txt in a script.
Ruledns.resolveNaptr(hostname, callback) function (in node js) → (err, data) => ….
Rememberdns.resolveNaptr(hostname, callback) function (in node js) + an Express route (a script).
Usedns.resolveNaptr(hostname, callback) function (in node js) in a script (read notes.txt).
Trapdns.resolveNaptr(hostname, callback) function (in node js) — callback hell, no error-first.
Exdns.resolveNaptr(hostname, callback) function (in node js) → read notes.txt.

Node.js · Theory

dns.resolveNaptr(hostname, callback) function in Node.js

← All stacks

Theory

564/723

dns.resolveNaptr(hostname, callback) function in Node.js

dns.resolveNaptr(hostname, callback) function (in node js) sits in a script. Kabir’s job is read notes.txt. Write that first.

For dns.resolveNaptr(hostname, callback) function (in node js), an Express route is in play. Don’t blame it until you have traced read notes.txt.

dns.resolveNaptr(hostname, callback) function (in node js) exists so Kabir can keep read notes.txt correct in a script.

dns.resolveNaptr(hostname, callback) function (in node js) shows up in a script. Name read notes.txt, not “a real-world scenario”.

dns.resolveNaptr(hostname, callback) function (in node js) trap: callback hell, no error-first. Kabir loses marks for that every viva.

dns.resolveNaptr(hostname, callback) function (in node js) is not a lonely heading. Kabir ties it to read notes.txt.

Viva for dns.resolveNaptr(hostname, callback) function (in node js): what it is → (err, data) => … → the mistake (callback hell, no error-first).

Exam tip

Board: read notes.txt. Dry-run dns.resolveNaptr(hostname, callback) function (in node js). Name the trap: callback hell, no error-first.

Example

function wait(ms) {
  return new Promise((resolve) => setTimeout(resolve, ms));
}

(async () => {
  console.log("start");
  await wait(50);
  console.log("done");
})();

dns.resolveNaptr(hostname, callback) function in Node.js — async/await sits on Promises — cleaner than nested callbacks.

Short notes

Defdns.resolveNaptr(hostname, callback) function (in node js) — Kabir uses it for read notes.txt in a script.
Ruledns.resolveNaptr(hostname, callback) function (in node js) → (err, data) => ….
Rememberdns.resolveNaptr(hostname, callback) function (in node js) + an Express route (a script).
Usedns.resolveNaptr(hostname, callback) function (in node js) in a script (read notes.txt).
Trapdns.resolveNaptr(hostname, callback) function (in node js) — callback hell, no error-first.
Exdns.resolveNaptr(hostname, callback) function (in node js) → read notes.txt.

dns.resolveNaptr(hostname, callback) function in Node.js

Example

Short notes

Questions

dns.resolveNaptr(hostname, callback) function in Node.js

Example

Short notes

Questions