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  • License Apache-2.0

Make your own nested error types!

Package Exports

  • make-error-cause

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (make-error-cause) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

Make Error Cause

NPM version NPM downloads Build status Test coverage

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

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:

License

Apache 2.0