Node.js · Theory

Process unhandledPromiseRejection Event

Theory

274/723

Process unhandledPromiseRejection Event

Process unhandledPromiseRejection Event is a Node.js topic. In plain words you use it for fetch a user then marks in an API handler. Don’t start with a slogan — start with that picture.

Smallest example: async function + try/catch. Type it, run it, and say what you see. If you can do that from memory, you know Process unhandledPromiseRejection Event.

From the example next to this theory: Process unhandledPromiseRejection Event — eventEmitter is the pub/sub core used across Node APIs.

Trap — unhandled rejection. Fix that before you talk about advanced Node.js.

Viva — what is Process unhandledPromiseRejection Event? Then show async function + try/catch. Then name the trap.

Exam tip

What is Process unhandledPromiseRejection Event? Show this: async function + try/catch. Trap: unhandled rejection.

Example

const EventEmitter = require("events");
const bus = new EventEmitter();

bus.on("ping", (n) => console.log("pong", n));
bus.emit("ping", 1);
bus.emit("ping", 2);

Process unhandledPromiseRejection Event — eventEmitter is the pub/sub core used across Node APIs.

Short notes

DefProcess unhandledPromiseRejection Event — fetch a user then marks in an API handler.
Ruleasync function + try/catch
Trapunhandled rejection
Usean API handler

Node.js · Theory

Process unhandledPromiseRejection Event

← All stacks

Theory

274/723

Process unhandledPromiseRejection Event

Process unhandledPromiseRejection Event is a Node.js topic. In plain words you use it for fetch a user then marks in an API handler. Don’t start with a slogan — start with that picture.

Smallest example: async function + try/catch. Type it, run it, and say what you see. If you can do that from memory, you know Process unhandledPromiseRejection Event.

From the example next to this theory: Process unhandledPromiseRejection Event — eventEmitter is the pub/sub core used across Node APIs.

Trap — unhandled rejection. Fix that before you talk about advanced Node.js.

Viva — what is Process unhandledPromiseRejection Event? Then show async function + try/catch. Then name the trap.

Exam tip

What is Process unhandledPromiseRejection Event? Show this: async function + try/catch. Trap: unhandled rejection.

Example

const EventEmitter = require("events");
const bus = new EventEmitter();

bus.on("ping", (n) => console.log("pong", n));
bus.emit("ping", 1);
bus.emit("ping", 2);

Process unhandledPromiseRejection Event — eventEmitter is the pub/sub core used across Node APIs.

Short notes

DefProcess unhandledPromiseRejection Event — fetch a user then marks in an API handler.
Ruleasync function + try/catch
Trapunhandled rejection
Usean API handler

Process unhandledPromiseRejection Event

Example

Short notes

Questions

Process unhandledPromiseRejection Event

Example

Short notes

Questions