Small module to create code errors with format support.

$ npm install nanoerror

const createError = require('nanoerror')

const ERR_EXAMPLE = createError('ERR_EXAMPLE', 'An error with the args: %s %j')

try {
  throw new ERR_EXAMPLE('arg1', { somejson: true })
} catch (err) {
  console.log(err.code) // ERR_EXAMPLE
  console.log(err.message) // An error with the args: arg1 {"somejson": true}
}

Creates a new nanoerror class.

Returns true if the err is a nanoerror instance.

Returns true if the err belongs to a specific nanoerror class.

Creates an error based on the options of another one.

🐛 If you found an issue we encourage you to report it on github. Please specify your OS and the actions to reproduce it.

👥 Ideas and contributions to the project are welcome. You must follow this guideline.

MIT © A GEUT project