JSPM

Normalize exceptions/errors

Properly update an error's message

Properly wrap an error's message

Merge an error with its inner cause

Properly create error classes

Properly update an error's properties

Handle errors in a simple, stable, consistent way

Create custom error classes

Properly update an error's stack

Ayamari helps you to create rich errors in a simple and consistent way.

Standard Error Library for JavaScript/TypeScript projects (NodeJS & Browsers)

A comprehensive HTTP error handling library for Node.js applications with typed error classes and standardized error responses.

Error handling utilities for Express.js