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.

• 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

npm install combine-errors

var error = require('combine-errors')
var err = error([
  new Error('boom'),
  new Error('kablam')
])
throw err

MIT