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Difference between Web Role and Worker Role in Node.js

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Difference between Web Role and Worker Role in Node.js

Difference between Web Role and Worker Role (in node js) is a Node.js topic. In plain words you use it for use all CPU cores in production box. Don’t start with a slogan — start with that picture.

Smallest example: cluster.fork or PM2. Type it, run it, and say what you see. If you can do that from memory, you know Difference between Web Role and Worker Role (in node js).

From the example next to this theory — Difference between Web Role and Worker Role in Node.

Trap — in-memory session without sticky. Fix that before you talk about advanced Node.js.

Viva: what is Difference between Web Role and Worker Role (in node js)? Then show cluster.fork or PM2. Then name the trap.

Exam tip

What is Difference between Web Role and Worker Role (in node js)? Show this: cluster.fork or PM2. Trap: in-memory session without sticky.

Example

// Difference between Web Role and Worker Role in Node.js
const users = [
  { id: 1, name: "Asha" },
  { id: 2, name: "Ravi" },
];

function findUser(id) {
  return users.find((u) => u.id === id) ?? null;
}

console.log(findUser(2));
console.log(users.map((u) => u.name));

Difference between Web Role and Worker Role in Node.js: find user 2, then list names. Say both prints.

Short notes

DefDifference between Web Role and Worker Role (in node js) — use all CPU cores in production box.
Rulecluster.fork or PM2
Trapin-memory session without sticky
Useproduction box

// Difference between Web Role and Worker Role in Node.js const users = [ { id: 1, name: "Asha" }, { id: 2, name: "Ravi" }, ]; function findUser(id) { return users.find((u) => u.id === id) ?? null; } console.log(findUser(2)); console.log(users.map((u) => u.name));

Difference between Web Role and Worker Role in Node.js

Example

Short notes

Questions

Difference between Web Role and Worker Role in Node.js

Example

Short notes

Questions