Make Error Cause

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[![NPM downloads][downloads-image]][downloads-url]
[![Build status][travis-image]][travis-url]
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> Make your own nested errors.

Features

- Compatible with node.js and browsers
- Works with instanceof
- Automatic full stack traces in node.js (supports inspect())
- Output full stack trace with fullStack(err)
- Extends make-error

Installation

``
npm install make-error-cause --save
`

Usage

`js
import { BaseError, fullStack } from "make-error-cause";

class CustomError extends BaseError {
constructor(message, cause) {
super(message, cause);
}
}

const error = new Error("Boom!");
const customError = new CustomError("Another boom!", error);

console.log(customError); // Automatically prints full stack trace using fullStack(this).
console.log(customError.cause); // Check causes via the .cause property.

console.log(customError instanceof Error); //=> true
`

Attribution

Inspired by verror`, and others, but created lighter and without core dependencies for browser usage.

Other references:

- Java
- Python

License

Apache 2.0

[npm-image]: https://img.shields.io/npm/v/make-error-cause.svg?style=flat
[npm-url]: https://npmjs.org/package/make-error-cause
[downloads-image]: https://img.shields.io/npm/dm/make-error-cause.svg?style=flat
[downloads-url]: https://npmjs.org/package/make-error-cause
[travis-image]: https://img.shields.io/travis/blakeembrey/make-error-cause.svg?style=flat
[travis-url]: https://travis-ci.org/blakeembrey/make-error-cause
[coveralls-image]: https://img.shields.io/coveralls/blakeembrey/make-error-cause.svg?style=flat
[coveralls-url]: https://coveralls.io/r/blakeembrey/make-error-cause?branch=master