Extend the Error Class with ES2015/ES5/Babel, i.e. fix for `class MyError extends Error{}`

A class designed to enable easily extending the built-in javascript Error, allowing typed errors.

an extendable ES6 Error with support for HTTP errors

Actions exec lib

Helper for creating easily extensible and subclassable JavaScript Error classes.

A set of configurators to help your Apps and Libraries build brilliant error classes

JavaScript extensible custom error that can take a message and/or an Error object

Easily subclass errors

Quickly create custom error objects.

A standard package for HTTP exceptions

Easily-extendable error for use with ES6 classes

Create errors with code and cause properties

`npm install @tryghost/tpl --save`

more than assert

Advanced error handling & printing

Transform error classes into error-returning functions

Node's builtin `assert.throws` does not work very well with rejecting promises or (equivalently) async functions.

Easily define custom error types in Node.js

Simply create sub-classed Boom errors for Hapi applications.

Errors factory