@vue/eslint-config-typescript

ESLint configuration for Vue 3 + TypeScript projects.

See @typescript-eslint/eslint-plugin for available rules.

This config is specifically designed to be used by create-vue setups and is not meant for outside use (it can be used but some adaptations on the user side might be needed - for details see the config file).

A part of its design is that this config may implicitly depend on other parts of create-vue setups, such as eslint-plugin-vue being extended in the same resulting config.

Note

The current version doesn't support the legacy .eslintrc* configuraion format. For that you need to use version 13 or earlier. See the corresponding README for more usage instructions.

Installation

npm add --dev @vue/eslint-config-typescript

Please also make sure that you have typescript and eslint installed.

Usage

Because of the complexity of this config, it is exported as a factory function that takes an options object and returns an ESLint configuration object.

Minimal Setup

// eslint.config.mjs
import pluginVue from "eslint-plugin-vue";
import vueTsEslintConfig from "@vue/eslint-config-typescript";

export default [
  ...pluginVue.configs["flat/essential"],
  ...vueTsEslintConfig(),
]

The above configuration enables the essential rules for Vue 3 and the recommended rules for TypeScript.

All the <script> blocks in .vue files MUST be written in TypeScript (should be either <script setup lang="ts"> or <script lang="ts">).

Advanced Setup

// eslint.config.mjs
import pluginVue from "eslint-plugin-vue";
import vueTsEslintConfig from "@vue/eslint-config-typescript";

export default [
  ...pluginVue.configs["flat/essential"],

  ...vueTsEslintConfig({
    // Optional: extend additional configurations from `typescript-eslint`.
    // Supports all the configurations in https://typescript-eslint.io/users/configs#recommended-configurations
    extends: [
      // By default, only the recommended rules are enabled.
      "recommended",
      // You can also manually enable the stylistic rules.
      // "stylistic",

      // [!NOTE] The ones with `-type-checked` are not yet tested.

      // Other utility configurations, such as `eslint-recommended`,
      // are also extendable here. But we don't recommend using them directly.
    ],

    // Optional: specify the script langs in `.vue` files
    // Defaults to `{ ts: true, js: false, tsx: false, jsx: false }`
    supportedScriptLangs: {
      ts: true,

      // [!DISCOURAGED]
      // Set to `true` to allow plain `<script>` or `<script setup>` blocks.
      // This might result-in false positive or negatives in some rules for `.vue` files.
      // Note you also need to configure `allowJs: true` and `checkJs: true`
      // in corresponding `tsconfig.json` files.
      js: false,

      // [!STRONGLY DISCOURAGED]
      // Set to `true` to allow `<script lang="tsx">` blocks.
      // This would be in conflict with all type-aware rules.
      tsx: false,

      // [!STRONGLY DISCOURAGED]
      // Set to `true` to allow `<script lang="jsx">` blocks.
      // This would be in conflict with all type-aware rules and may result in false positives.
      jsx: false,
    },

    // [!NOT YET IMPLEMENTED]
    // <https://github.com/vuejs/eslint-plugin-vue/issues/1910#issuecomment-1819993961>
    // Optional: the root directory to resolve the `.vue` files, defaults to `process.cwd()`.
    // 
    // This is useful when you allow any other languages than `ts` in `.vue` files.
    // Our config helper would resolve and parse all the `.vue` files under `rootDir`,
    // and only apply the loosened rules to the files that do need them.
    // 
    // rootDir: __dirname,
  })
]

Further Reading

TODO

With Other Community Configs

Work-In-Progress.

If you are following the standard or airbnb style guides, don't manually extend from this package. Please use @vue/eslint-config-standard-with-typescript or @vue/eslint-config-airbnb-with-typescript instead.

Migrating from `.eslintrc.cjs`

TODO

License

winstliu/eslint-config-typescript

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