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eslint-import-resolver-typescript

v3.6.1

Published

This plugin adds `TypeScript` support to `eslint-plugin-import`

Downloads

35,219,077

Readme

eslint-import-resolver-typescript

GitHub Actions type-coverage npm GitHub Release

Conventional Commits Renovate enabled JavaScript Style Guide Code Style: Prettier changesets

This plugin adds TypeScript support to eslint-plugin-import (Or maybe you want to try eslint-plugin-i for faster speed)

This means you can:

  • import/require files with extension .cts/.mts/.ts/.tsx/.d.cts/.d.mts/.d.ts
  • Use paths defined in tsconfig.json
  • Prefer resolving @types/* definitions over plain .js/.jsx
  • Multiple tsconfigs support just like normal
  • imports/exports fields support in package.json

TOC

Notice

After version 2.0.0, .d.ts will take higher priority then normal .js/.jsx files on resolving node_modules packages in favor of @types/* definitions or its own definition.

If you're facing some problems on rules import/default or import/named from eslint-plugin-import, do not post any issue here, because they are just working exactly as expected on our sides, take import-js/eslint-plugin-import#1525 as reference or post a new issue to eslint-plugin-import instead.

Installation

# npm
npm i -D eslint-plugin-import eslint-import-resolver-typescript

# pnpm
pnpm i -D eslint-plugin-import eslint-import-resolver-typescript

# yarn
yarn add -D eslint-plugin-import eslint-import-resolver-typescript

Configuration

Add the following to your .eslintrc config:

{
  "plugins": ["import"],
  "rules": {
    // turn on errors for missing imports
    "import/no-unresolved": "error"
  },
  "settings": {
    "import/parsers": {
      "@typescript-eslint/parser": [".ts", ".tsx"]
    },
    "import/resolver": {
      "typescript": {
        "alwaysTryTypes": true, // always try to resolve types under `<root>@types` directory even it doesn't contain any source code, like `@types/unist`

        // Choose from one of the "project" configs below or omit to use <root>/tsconfig.json by default

        // use <root>/path/to/folder/tsconfig.json
        "project": "path/to/folder",

        // Multiple tsconfigs (Useful for monorepos)

        // use a glob pattern
        "project": "packages/*/tsconfig.json",

        // use an array
        "project": [
          "packages/module-a/tsconfig.json",
          "packages/module-b/tsconfig.json"
        ],

        // use an array of glob patterns
        "project": [
          "packages/*/tsconfig.json",
          "other-packages/*/tsconfig.json"
        ]
      }
    }
  }
}

Options from enhanced-resolve

conditionNames

Default:

[
  "types",
  "import",

  // APF: https://angular.io/guide/angular-package-format
  "esm2020",
  "es2020",
  "es2015",

  "require",
  "node",
  "node-addons",
  "browser",
  "default"
]

extensions

Default:

[
  // `.mts`, `.cts`, `.d.mts`, `.d.cts`, `.mjs`, `.cjs` are not included because `.cjs` and `.mjs` must be used explicitly
  ".ts",
  ".tsx",
  ".d.ts",
  ".js",
  ".jsx",
  ".json",
  ".node"
]

extensionAlias

Default:

{
  ".js": [
    ".ts",
    // `.tsx` can also be compiled as `.js`
    ".tsx",
    ".d.ts",
    ".js"
  ],
  ".jsx": [".tsx", ".d.ts", ".jsx"],
  ".cjs": [".cts", ".d.cts", ".cjs"],
  ".mjs": [".mts", ".d.mts", ".mjs"]
}

mainFields

Default:

[
  "types",
  "typings",

  // APF: https://angular.io/guide/angular-package-format
  "fesm2020",
  "fesm2015",
  "esm2020",
  "es2020",

  "module",
  "jsnext:main",

  "main"
]

Other options

You can pass through other options of enhanced-resolve directly

Default options

You can reuse defaultConditionNames, defaultExtensions, defaultExtensionAlias and defaultMainFields by require/import them directly

Contributing

  • Make sure your change is covered by a test import.
  • Make sure that yarn test passes without a failure.
  • Make sure that yarn lint passes without conflicts.
  • Make sure your code changes match our type-coverage settings: yarn type-coverage.

We have GitHub Actions which will run the above commands on your PRs.

If either fails, we won't be able to merge your PR until it's fixed.

Sponsors

| 1stG | RxTS | UnTS | | ---------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------- | | 1stG Open Collective backers and sponsors | RxTS Open Collective backers and sponsors | UnTS Open Collective backers and sponsors |

Backers

| 1stG | RxTS | UnTS | | -------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------- | | 1stG Open Collective backers and sponsors | RxTS Open Collective backers and sponsors | UnTS Open Collective backers and sponsors |

Changelog

Detailed changes for each release are documented in CHANGELOG.md.

License

ISC