Node.js · Theory

Process unhandledPromiseRejection Event

Theory

274/723

Process unhandledPromiseRejection Event

Meera only reaches for Process unhandledPromiseRejection Event when fetch a user then marks has to stay correct in an API handler.

Process unhandledPromiseRejection Event on the board: async function + try/catch. Then say what fetch a user then marks looks like after.

Without Process unhandledPromiseRejection Event, an API handler gets messy and fetch a user then marks is hard to trust.

Meera ships Process unhandledPromiseRejection Event in an API handler. That is the use case worth saying.

Process unhandledPromiseRejection Event trap: unhandled rejection. Meera loses marks for that every viva.

Process unhandledPromiseRejection Event is not a lonely heading. Meera ties it to fetch a user then marks.

One breath for Process unhandledPromiseRejection Event, then fetch a user then marks, then unhandled rejection. Sit down.

Exam tip

Board: fetch a user then marks. Dry-run Process unhandledPromiseRejection Event. Name the 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 — Meera uses it for fetch a user then marks in an API handler.
RuleProcess unhandledPromiseRejection Event → async function + try/catch.
RememberProcess unhandledPromiseRejection Event + the event loop (an API handler).
UseProcess unhandledPromiseRejection Event in an API handler (fetch a user then marks).
TrapProcess unhandledPromiseRejection Event — unhandled rejection.
ExProcess unhandledPromiseRejection Event → fetch a user then marks.

Node.js · Theory

Process unhandledPromiseRejection Event

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Theory

274/723

Process unhandledPromiseRejection Event

Meera only reaches for Process unhandledPromiseRejection Event when fetch a user then marks has to stay correct in an API handler.

Process unhandledPromiseRejection Event on the board: async function + try/catch. Then say what fetch a user then marks looks like after.

Without Process unhandledPromiseRejection Event, an API handler gets messy and fetch a user then marks is hard to trust.

Meera ships Process unhandledPromiseRejection Event in an API handler. That is the use case worth saying.

Process unhandledPromiseRejection Event trap: unhandled rejection. Meera loses marks for that every viva.

Process unhandledPromiseRejection Event is not a lonely heading. Meera ties it to fetch a user then marks.

One breath for Process unhandledPromiseRejection Event, then fetch a user then marks, then unhandled rejection. Sit down.

Exam tip

Board: fetch a user then marks. Dry-run Process unhandledPromiseRejection Event. Name the 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 — Meera uses it for fetch a user then marks in an API handler.
RuleProcess unhandledPromiseRejection Event → async function + try/catch.
RememberProcess unhandledPromiseRejection Event + the event loop (an API handler).
UseProcess unhandledPromiseRejection Event in an API handler (fetch a user then marks).
TrapProcess unhandledPromiseRejection Event — unhandled rejection.
ExProcess unhandledPromiseRejection Event → fetch a user then marks.

Process unhandledPromiseRejection Event

Example

Short notes

Questions

Process unhandledPromiseRejection Event

Example

Short notes

Questions