---
url: /docs/guide/usage/linter/rules/promise/spec-only.md
---

### What it does

Disallow use of non-standard Promise static methods.

### Why is this bad?

Non-standard Promises may cost more maintenance work.

### Examples

Examples of **incorrect** code for this rule:

```js
Promise.done();
```

Examples of **correct** code for this rule:

```js
Promise.resolve();
```

## Configuration

This rule accepts a configuration object with the following properties:

### allowedMethods

type: `string[]`

default: `null`

List of Promise static methods that are allowed to be used.

## How to use

## Version

This rule was added in v0.9.2.

## References