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loud-rejection

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loud-rejection

Make unhandled promise rejections fail loudly instead of the default silent fail

    2.2.0latest

Version published
Maintainers
2
Weekly downloads
6,351,612
decreased by-10.58%

Weekly downloads

Changelog

Source

  • Add TypeScript declaration file for load-rejection/register (#29) 7fae12f

https://github.com/sindresorhus/loud-rejection/compare/v2.1.0...v2.2.0

Readme

Source

loud-rejection Build Status Coverage Status

Make unhandled promise rejections fail loudly instead of the default silent fail

By default, promises fail silently if you don't attach a .catch() handler to them.

This tool keeps track of unhandled rejections globally. If any remain unhandled at the end of your process, it logs them to STDERR and exits with code 1.

Use this in top-level things like tests, CLI tools, apps, etc, but not in reusable modules.
Not needed in the browser as unhandled rejections are shown in the console.

Install

$ npm install loud-rejection

Usage

const loudRejection = require('loud-rejection'); const promiseFunction = require('promise-fn'); // Install the `unhandledRejection` listeners loudRejection(); promiseFunction();

Without this module it's more verbose and you might even miss some that will fail silently:

const promiseFunction = require('promise-fn'); function error(error) { console.error(error.stack); process.exit(1); } promiseFunction().catch(error);

Register script

Alternatively to the above, you may simply require loud-rejection/register and the unhandledRejection listener will be automagically installed for you.

This is handy for ES2015 imports:

import 'loud-rejection/register';

API

loudRejection([log])

log

Type: Function
Default: console.error

Custom logging function to print the rejected promise. Receives the error stack.

  • hard-rejection - Make unhandled promise rejections fail hard right away instead of the default silent fail
  • More…

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FAQs

What is loud-rejection?

Make unhandled promise rejections fail loudly instead of the default silent fail

Is loud-rejection popular?

The npm package loud-rejection receives a total of 5,124,035 weekly downloads. As such, loud-rejection popularity was classified as popular.

Is loud-rejection well maintained?

We found that loud-rejection demonstrated a not healthy version release cadence and project activity because the last version was released a year ago.It has 2 open source maintainers collaborating on the project.

Last updated on 28 Sep 2019

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