A base class for JavaScript errors
It makes simple create qualified errors.
⛑ Better error reporting for Node.js command-line apps.
Create HTTP Errors
Generate valid custom error and exception classes for Node.js.
Functional errors with formatted output
JSON logger
Enumed, dictionary-based and dependenciless javascript (ES6) error library.
Client-side JavaScript exception reporting library for Cloud Error Reporting
Development-only error handler middleware
Compare and test various custom error implementations.
Straightforward ES6 class you can extend to make proper custom errors
λ "Functions all the way down" data validation for JavaScript and TypeScript.
libuv errno details exposed
Custom error constructor factory.
A module for collecting errors, stack traces and other information globally