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# `@masknet/array/no-unneeded-flat-map`

Disallow `Array#flatMap((x) => x)` when simpler alternatives exist

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## Rule Details

### :x: Incorrect

```ts
declare const elements: string[][];
elements.flatMap((x) => x);
```

### :white_check_mark: Correct

```ts
declare const elements: string[][];
elements.flat();
```

## Attributes

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- [x] :white_check_mark: Recommended
- [x] :wrench: Fixable
- [ ] :bulb: Suggestions
- [ ] :gear: Configurable
- [ ] :thought_balloon: Requires type information

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