@typescript-eslint/eslint-plugin/docs/rules/no-unnecessary-qualifier.mdx

TypeScript plugin for ESLint

---
description: 'Disallow unnecessary namespace qualifiers.'
---

import Tabs from '@theme/Tabs';
import TabItem from '@theme/TabItem';

> 🛑 This file is source code, not the primary documentation location! 🛑
>
> See **https://typescript-eslint.io/rules/no-unnecessary-qualifier** for documentation.

Members of TypeScript enums and namespaces are generally retrieved as qualified property lookups: e.g. `Enum.member`.
However, when accessed within their parent enum or namespace, the qualifier is unnecessary: e.g. just `member` instead of `Enum.member`.
This rule reports when an enum or namespace qualifier is unnecessary.

## Examples

<Tabs>
<TabItem value="❌ Incorrect">

```ts
enum A {
  B,
  C = A.B,
}
```

```ts
namespace A {
  export type B = number;
  const x: A.B = 3;
}
```

</TabItem>
<TabItem value="✅ Correct">

```ts
enum A {
  B,
  C = B,
}
```

```ts
namespace A {
  export type B = number;
  const x: B = 3;
}
```

</TabItem>
</Tabs>

## When Not To Use It

If you explicitly prefer to use fully qualified names, such as for explicitness, then you don't need to use this rule.