https://github.com/narumincho/type-lint

Deno lint plugin for TypeScript types
https://github.com/narumincho/type-lint

Last synced: about 1 month ago
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Deno lint plugin for TypeScript types

• Host: GitHub
• URL: https://github.com/narumincho/type-lint
• Owner: narumincho
• License: mit
• Created: 2025-12-17T03:45:08.000Z (7 months ago)
• Default Branch: main
• Last Pushed: 2025-12-17T08:25:09.000Z (7 months ago)
• Last Synced: 2025-12-20T17:48:02.779Z (7 months ago)
• Language: TypeScript
• Homepage:
• Size: 13.7 KB
• Stars: 0
• Watchers: 0
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# deno-type-lint

Deno lint plugin for TypeScript types.

[![jsr:@narumincho/type-lint](https://jsr.io/badges/@narumincho/type-lint)](https://jsr.io/@narumincho/type-lint)

日本語の記事: https://zenn.dev/narumincho/articles/deno-lint-plugin

## Description

This plugin enforces stricter TypeScript type annotations by replacing shorthand array types with their explicit forms. This helps improve type safety and consistency in your codebase.

## Usage

Add the plugin to your `deno.json`:

```json

{

  "lint": {

    "plugins": ["jsr:@narumincho/type-lint"]

  }

}

```

## Rules

### type-lint/no-array-shorthand

This rule replaces shorthand array type annotations with explicit `Array` and `ReadonlyArray` types.

#### Examples

**Before:**

```ts

function removeEmptyStringInArray(array: readonly string[]): string[] {

  return array.filter((item) => item !== "");

}

```

**After:**

```ts

function removeEmptyStringInArray(array: ReadonlyArray): Array {

  return array.filter((item) => item !== "");

}

```

This rule applies to:

- `T[]` → `Array`

- `readonly T[]` → `ReadonlyArray`