> For AI agents: the complete documentation index is available at https://rslint.rs/llms.txt, the full documentation bundle is available at https://rslint.rs/llms-full.txt.

# no-thenable

[Added in v0.6.5](https://github.com/web-infra-dev/rslint/releases/tag/v0.6.5)
## Configuration

| Preset                              | Configured Value |
| ----------------------------------- | ---------------- |
| ✅ unicornPlugin.configs.recommended | `"error"`        |


```ts title=rslint.config.ts
import { defineConfig, unicornPlugin } from '@rslint/core';

export default defineConfig([
  unicornPlugin.configs.recommended,
  {
    rules: {
      'unicorn/no-thenable': 'error',
    },
  },
]);
```

## Rule Details

Disallow adding a `then` property to objects or classes, and disallow exporting
a binding named `then`.

Objects with a `then` property can be treated as thenables when they are
awaited. Modules with a named `then` export can also behave unexpectedly with
dynamic `import()`.

Computed property names are also checked when they can be statically resolved to `then`.

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

```javascript
const value = {
  then() {},
};

class Value {
  then() {}
}

foo.then = () => {};

export function then() {}
```

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

```javascript
const value = {
  success() {},
};

class Value {
  success() {}
}

foo.success = () => {};

export function success() {}
```

## Original Documentation

- [eslint-plugin-unicorn: no-thenable](https://github.com/sindresorhus/eslint-plugin-unicorn/blob/v70.0.0/docs/rules/no-thenable.md)
- [Source code](https://github.com/sindresorhus/eslint-plugin-unicorn/blob/v70.0.0/rules/no-thenable.js)