Errors as values

Error constructor for Maybe Monads.

Features

• code first, message optional
• instance of Error
• no stack trace
• serializable

API

• Err(code: string, message?: string)
• Err(code: string, details?: object)

Examples

import { Err } from 'error-value'

const err = Err('BAD')

console.log(err instanceof Error) // true
console.log(err.code) // 'BAD'

const err = Err('BAD', 'Something bad happened')

console.log(err.message) // 'Something bad happened'

const err = Err('BAD', { foo: 'bar' })

console.log(err.foo) // 'bar'
console.log(JSON.stringify(err)) // '{"code":"BAD","foo":"bar"}'