combine-errors

What is combine-errors?

The combine-errors npm package allows you to combine multiple error objects into a single error object. This can be useful in scenarios where you need to aggregate multiple errors and handle them as a single entity.

What are combine-errors's main functionalities?

Combining Multiple Errors

This feature allows you to combine multiple error objects into a single error object. The combined error will contain information from all the individual errors.

const combineErrors = require('combine-errors');

const error1 = new Error('First error');
const error2 = new Error('Second error');

const combinedError = combineErrors([error1, error2]);
console.log(combinedError);

Handling Nested Errors

This feature allows you to handle nested errors by combining them into a single error object. This can be useful when dealing with complex error scenarios where errors are nested within each other.

const combineErrors = require('combine-errors');

const error1 = new Error('First error');
const nestedError = combineErrors([new Error('Nested error 1'), new Error('Nested error 2')]);
const combinedError = combineErrors([error1, nestedError]);
console.log(combinedError);

Other packages similar to combine-errors

aggregate-error

The aggregate-error package allows you to create an error that aggregates multiple errors. It provides a similar functionality to combine-errors but with a different API. AggregateError is a built-in error type in JavaScript, and this package provides a way to use it easily.

README

combine-errors

Simple, dependency-free way to combine multiple errors into one.

This is useful for handling multiple asynchronous errors, where you want to catch all the errors and combine them to return just a single error.

Features

• error instanceof Error === true
• composable: error([error([err1, err2]), err3])
• stack and message are combined in a nice way
• array-like object, so you can access the original errors by looping over the error
• If you just have one error, it looks exactly like raw error meaning, error(err).message === err.message && error(err).stack === err.stack
• zero dependencies
• should work in the browser, though I haven't tested it yet

Installation

npm install combine-errors

Usage

var error = require('combine-errors')
var err = error([
  new Error('boom'),
  new Error('kablam')
])
throw err
/*
=>
Error: boom
    at repl:2:1
    at REPLServer.defaultEval (repl.js:262:27)
    at bound (domain.js:287:14)
    at REPLServer.runBound [as eval] (domain.js:300:12)
    at REPLServer.<anonymous> (repl.js:431:12)
    at emitOne (events.js:95:20)
    at REPLServer.emit (events.js:182:7)
    at REPLServer.Interface._onLine (readline.js:211:10)
    at REPLServer.Interface._line (readline.js:550:8)
    at REPLServer.Interface._ttyWrite (readline.js:827:14)

Error: kablam
    at repl:3:1
    at REPLServer.defaultEval (repl.js:262:27)
    at bound (domain.js:287:14)
    at REPLServer.runBound [as eval] (domain.js:300:12)
    at REPLServer.<anonymous> (repl.js:431:12)
    at emitOne (events.js:95:20)
    at REPLServer.emit (events.js:182:7)
    at REPLServer.Interface._onLine (readline.js:211:10)
    at REPLServer.Interface._line (readline.js:550:8)
    at REPLServer.Interface._ttyWrite (readline.js:827:14)
*/

License

MIT