https://github.com/es-shims/error-cause
An ES-spec-compliant shim/polyfill/replacement for the `.cause` property on all Error types that works as far down as ES3
https://github.com/es-shims/error-cause
aggregateerror ecmascript error evalerror javascript polyfill rangeerror referenceerror shim syntaxerror typeerror urierror
Last synced: 8 days ago
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An ES-spec-compliant shim/polyfill/replacement for the `.cause` property on all Error types that works as far down as ES3
- Host: GitHub
- URL: https://github.com/es-shims/error-cause
- Owner: es-shims
- License: mit
- Created: 2021-09-03T16:12:49.000Z (about 4 years ago)
- Default Branch: main
- Last Pushed: 2025-09-12T04:56:56.000Z (26 days ago)
- Last Synced: 2025-09-12T06:29:38.483Z (26 days ago)
- Topics: aggregateerror, ecmascript, error, evalerror, javascript, polyfill, rangeerror, referenceerror, shim, syntaxerror, typeerror, urierror
- Language: JavaScript
- Homepage:
- Size: 131 KB
- Stars: 18
- Watchers: 4
- Forks: 4
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- License: LICENSE
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README
# error-cause [![Version Badge][npm-version-svg]][package-url]
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An ES-spec-compliant shim/polyfill/replacement for the `.cause` property on all Error types that works as far down as ES3
This package implements the [es-shim API](https://github.com/es-shims/api) “multi” interface. It works in an ES3-supported environment and complies with the proposed [spec](https://tc39.es/proposal-error-cause/).
## Getting started
```sh
npm install --save error-cause
```
## Usage/Examples
```js
const assert = require('assert');
require('error-cause/auto');
try {
x();
} catch (e) {
const actual = new Error('a better message!', { cause: e });
assert(actual instanceof Error);
assert(actual.cause === e);
}
```
## Tests
Clone the repo, `npm install`, and run `npm test`
[package-url]: https://npmjs.org/package/error-cause
[npm-version-svg]: https://versionbadg.es/es-shims/error-cause.svg
[deps-svg]: https://david-dm.org/es-shims/error-cause.svg
[deps-url]: https://david-dm.org/es-shims/error-cause
[dev-deps-svg]: https://david-dm.org/es-shims/error-cause/dev-status.svg
[dev-deps-url]: https://david-dm.org/es-shims/error-cause#info=devDependencies
[npm-badge-png]: https://nodei.co/npm/error-cause.png?downloads=true&stars=true
[license-image]: https://img.shields.io/npm/l/error-cause.svg
[license-url]: LICENSE
[downloads-image]: https://img.shields.io/npm/dm/error-cause.svg
[downloads-url]: https://npm-stat.com/charts.html?package=error-cause
[codecov-image]: https://codecov.io/gh/es-shims/error-cause/branch/main/graphs/badge.svg
[codecov-url]: https://app.codecov.io/gh/es-shims/error-cause/
[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/es-shims/error-cause
[actions-url]: https://github.com/es-shims/error-cause/actions