node-verror - 1.10.1+~1.10.5-2 main

This module provides several classes in support of Joyent's Best Practices
for Error Handling in Node.js.
.
The error classes here support:
* printf-style arguments for the message
* chains of causes
* properties to provide extra information about the error
* creating your own subclasses that support all of these
.
Node.js is an event-based server-side JavaScript engine.