# error-value

> Errors as values

Latest version **0.4.4** (published 2024-12-05) · MIT license · 0 weekly downloads

> **Deprecated.** This package is deprecated.

## Install

```sh
npm install error-value
pnpm add error-value
yarn add error-value
bun add error-value
```

## Health

**Score 10/100 (F)** — status: deprecated.

Negative: deprecated.

## Facts

| | |
|---|---|
| Version | 0.4.4 |
| Published | 2024-12-05 |
| First published | 2023-10-30 |
| Weekly downloads | 0 |
| License | MIT |
| TypeScript types | bundled |
| Module format | CommonJS |
| Dependencies | 0 |
| Unpacked size | 48.3 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| GitHub stars | 0 |
| Author | temich |
| Maintainers | agurtovoi |
| Keywords | javascript, typescript, maybe monad |

## Links

- npm: https://www.npmjs.com/package/error-value
- Repository: https://github.com/toa-io/err
- Homepage: https://github.com/toa-io/err#readme
- Issues: https://github.com/toa-io/err/issues
- npm.io page: https://npm.io/package/error-value

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## Recent versions

- 0.4.4 (latest) — 2024-12-05
- 0.4.2 — 2024-12-05
- 0.4.1 — 2024-08-24
- 0.4.0 — 2024-08-16
- 0.3.0 — 2023-11-01
- 0.2.4 — 2023-11-01
- 0.2.3 — 2023-11-01
- 0.2.2 — 2023-11-01
- 0.2.1 — 2023-11-01
- 0.2.0 — 2023-11-01
- 0.1.0 — 2023-10-30

## README

# 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

```typescript
import { Err } from 'error-value'
```

```typescript
const err = Err('BAD')

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

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

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

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

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

---
_Source: https://npm.io/package/error-value · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._