https://github.com/flex-development/aggregate-error-ponyfill

ECMAScript Proposal spec-compliant ponyfill for AggregateError
https://github.com/flex-development/aggregate-error-ponyfill

aggregate-error ecmascript es-proposal polyfill ponyfill typescript

Last synced: 5 months ago
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ECMAScript Proposal spec-compliant ponyfill for AggregateError

• Host: GitHub
• URL: https://github.com/flex-development/aggregate-error-ponyfill
• Owner: flex-development
• License: bsd-3-clause
• Created: 2022-08-27T03:01:45.000Z (almost 3 years ago)
• Default Branch: main
• Last Pushed: 2023-12-18T21:07:58.000Z (over 1 year ago)
• Last Synced: 2025-02-16T05:01:43.680Z (5 months ago)
• Topics: aggregate-error, ecmascript, es-proposal, polyfill, ponyfill, typescript
• Language: JavaScript
• Homepage: https://github.com/flex-development/aggregate-error-ponyfill
• Size: 3.03 MB
• Stars: 1
• Watchers: 2
• Forks: 0
• Open Issues: 10
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • Contributing: CONTRIBUTING.md
  • Funding: .github/funding.yml
  • License: LICENSE.md
  • Code of conduct: CODE_OF_CONDUCT.md

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README

        
# aggregate-error-ponyfill

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[`AggregateError`][1] [ponyfill][2].

## Contents

- [What is this?](#what-is-this)

- [When should I use this?](#when-should-i-use-this)

- [Install](#install)

- [Use](#use)

- [API](#api)

- [Types](#types)

  - [Interfaces](#interfaces)

- [Contribute](#contribute)

## What is this?

This package is an ECMAScript Proposal spec-compliant [ponyfill][2] for [`AggregateError`][1].

## When should I use this?

Use this package when you want to throw `AggregateError` objects in unsupported environments (`< es2021`).

## Install

```sh

yarn add @flex-development/aggregate-error-ponyfill

```

From Git:

```sh

yarn add @flex-development/aggregate-error-ponyfill@flex-development/aggregate-error-ponyfill

```



  

    See Git - Protocols | Yarn

     for details on requesting a specific branch, commit, or tag.

  



## Use

```javascript

import AggregateError from '@flex-development/aggregate-error-ponyfill'

try {

  throw new AggregateError([new Error('some error')], 'oh no!')

} catch (e) {

  console.debug(e instanceof AggregateError) // true

  console.error(e.name)                      // 'AggregateError'

  console.error(e.message)                   // 'oh no!'

  console.error(e.errors)                    // [Error: 'some error']

}

```

## API

This package exports no identifiers.

The default export is `AggregateError`.

### 
`new AggregateError(errors: Iterable, message?: string, options?: Options)`


Wrap several errors in a single error so that multiple errors can be reported by an operation.

#### `errors`

An iterable of errors.

#### `message`

An optional human-readable description of the aggregate error.

#### `options`

An object that has the following properties:

##### `cause`

The specific cause of the aggregate error.

When catching and re-throwing an error with a more-specific or useful error message, this property can be used to pass

the original error.

## Types

This package is fully typed with [TypeScript][3].

### Interfaces

- [`Options`](src/options.ts)

## Contribute

See [`CONTRIBUTING.md`](CONTRIBUTING.md).

[1]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/AggregateError

[2]: https://github.com/sindresorhus/ponyfill

[3]: https://www.typescriptlang.org