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Properly wrap an error's message.

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Please reach out if you're looking for a Node.js API or CLI engineer (11 years of experience). Most recently I have been Netlify Build's and Netlify Plugins' technical lead for 2.5 years. I am available for full-time remote positions.

Features

Example

import wrapErrorMessage from 'wrap-error-message'

wrapErrorMessage(new Error('Message.'), 'Additional message.')
// Error: Message.
// Additional message.

wrapErrorMessage(new Error('Message.'), 'Additional message:')
// Error: Additional message: Message.

wrapErrorMessage(new Error('Message.'), 'Additional message:\n')
// Error: Additional message:
// Message.

wrapErrorMessage(new Error('Message.'), '')
// Error: Message.

const invalidError = 'Message.'
wrapErrorMessage(invalidError, 'Additional message.')
// Error: Message.
// Additional message.

wrapErrorMessage(new Error('  Message with spaces  '), '  Additional message  ')
// Error: Message with spaces
// Additional message

Install

npm install wrap-error-message

This package works in both Node.js >=18.18.0 and browsers.

This is an ES module. It must be loaded using an import or import() statement, not require(). If TypeScript is used, it must be configured to output ES modules, not CommonJS.

API

wrapErrorMessage(error, message)

error Error | any
message string
Return value: Error

Appends message to error.message. If message ends with : or :\n, prepends it instead.

Returns error. If error is not an Error instance, it is converted to one.

Related projects

Support

For any question, don't hesitate to submit an issue on GitHub.

Everyone is welcome regardless of personal background. We enforce a Code of conduct in order to promote a positive and inclusive environment.

Contributing

This project was made with ❤️. The simplest way to give back is by starring and sharing it online.

If the documentation is unclear or has a typo, please click on the page's Edit button (pencil icon) and suggest a correction.

If you would like to help us fix a bug or add a new feature, please check our guidelines. Pull requests are welcome!