eslint-plugin-vue-scoped-css

eslint-plugin-vue-scoped-css is ESLint plugin for Scoped CSS in Vue.js.

Features

This ESLint plugin provides linting rules relate to better ways to help you avoid problems when using Scoped CSS in Vue.js.

• Provides linting rules for Scoped CSS.
• Supports CSS syntax including level 4 selectors.
• Supports <style lang="scss">.
• Supports <style lang="stylus">.
• Parses <style>, <template> and <script> blocks.

You can check on the Online DEMO.

Documentation

See documents.

Installation

npm install --save-dev eslint eslint-plugin-vue-scoped-css vue-eslint-parser

Requirements

• ESLint v6.0.0 and above
• Node.js v12.22.x, v14.17.x, v16.x and above

Usage

New Config (eslint.config.js)

Use eslint.config.js file to configure rules. See also: https://eslint.org/docs/latest/use/configure/configuration-files-new.

Example eslint.config.js:

import eslintPluginVueScopedCSS from 'eslint-plugin-vue-scoped-css';
export default [
  // add more generic rule sets here, such as:
  // js.configs.recommended,
  ...eslintPluginVueScopedCSS.configs['flat/recommended'],
  {
    rules: {
      // override/add rules settings here, such as:
      // 'vue-scoped-css/no-unused-selector': 'error'
    }
  }
];

Legacy Config (.eslintrc)

Use .eslintrc.* file to configure rules. See also: https://eslint.org/docs/latest/use/configure/.

Example .eslintrc.js:

module.exports = {
  extends: [
    // add more generic rulesets here, such as:
    // 'eslint:recommended',
    'plugin:vue-scoped-css/vue3-recommended'
  ],
  rules: {
    // override/add rules settings here, such as:
    // 'vue-scoped-css/no-unused-selector': 'error'
  }
}

Configs

This plugin provides some predefined configs:

New Config (eslint.config.js)

• *.configs['flat/base'] - Settings and rules to enable this plugin
• *.configs['flat/recommended'] - /base, plus rules for better ways to help you avoid problems for Vue.js 3.x
• *.configs['flat/vue2-recommended'] - /base, plus rules for better ways to help you avoid problems for Vue.js 2.x
• *.configs['flat/all'] - All rules of this plugin are included

Legacy Config (.eslintrc)

• plugin:vue-scoped-css/base - Settings and rules to enable this plugin
• plugin:vue-scoped-css/recommended - /base, plus rules for better ways to help you avoid problems for Vue.js 2.x
• plugin:vue-scoped-css/vue3-recommended - /base, plus rules for better ways to help you avoid problems for Vue.js 3.x
• plugin:vue-scoped-css/all - All rules of this plugin are included

Rules

The --fix option on the command line automatically fixes problems reported by rules which have a wrench 🔧 below.

Recommended for Vue.js 3.x

Enforce all the rules in this category with:

export default [
  ...eslintPluginVueScopedCSS.configs['flat/recommended'],
]

or

{
  "extends": ["plugin:vue-scoped-css/vue3-recommended"]
}

Rule ID	Description
vue-scoped-css/enforce-style-type	enforce the <style> tags to be plain or have the scoped or module attribute
vue-scoped-css/no-deprecated-deep-combinator	disallow using deprecated deep combinators	🔧
vue-scoped-css/no-parent-of-v-global	disallow parent selector for ::v-global pseudo-element
vue-scoped-css/no-parsing-error	disallow parsing errors in <style>
vue-scoped-css/no-unused-keyframes	disallow @keyframes which don't use in Scoped CSS
vue-scoped-css/no-unused-selector	disallow selectors defined in Scoped CSS that don't use in <template>
vue-scoped-css/require-v-deep-argument	require selector argument to be passed to ::v-deep()	🔧
vue-scoped-css/require-v-global-argument	require selector argument to be passed to ::v-global()
vue-scoped-css/require-v-slotted-argument	require selector argument to be passed to ::v-slotted()

Recommended for Vue.js 2.x

Enforce all the rules in this category with:

export default [
  ...eslintPluginVueScopedCSS.configs['flat/vue2-recommended'],
]

or

{
  "extends": ["plugin:vue-scoped-css/recommended"]
}

Rule ID	Description
vue-scoped-css/enforce-style-type	enforce the <style> tags to be plain or have the scoped or module attribute
vue-scoped-css/no-parsing-error	disallow parsing errors in <style>
vue-scoped-css/no-unused-keyframes	disallow @keyframes which don't use in Scoped CSS
vue-scoped-css/no-unused-selector	disallow selectors defined in Scoped CSS that don't use in <template>

Uncategorized

No preset enables the rules in this category. Please enable each rule if you want.

For example:

{
  "rules": {
    "vue-scoped-css/no-deprecated-v-enter-v-leave-class": "error"
  }
}

Rule ID	Description
vue-scoped-css/no-deprecated-v-enter-v-leave-class	disallow v-enter and v-leave classes.
vue-scoped-css/require-selector-used-inside	disallow selectors defined that is not used inside <template>
vue-scoped-css/v-deep-pseudo-style	enforce :deep()/::v-deep() style	🔧
vue-scoped-css/v-global-pseudo-style	enforce :global()/::v-global() style	🔧
vue-scoped-css/v-slotted-pseudo-style	enforce :slotted()/::v-slotted() style	🔧

Deprecated

• ⚠️ We're going to remove deprecated rules in the next major release. Please migrate to successor/new rules.
• 😇 We don't fix bugs which are in deprecated rules since we don't have enough resources.

Rule ID	Replaced by
vue-scoped-css/require-scoped	vue-scoped-css/enforce-style-type

Contributing

Welcome contributing!

Please use GitHub's Issues/PRs.

Development Tools

• npm test runs tests and measures coverage.
• npm run update runs in order to update readme and recommended configuration.

License

See the LICENSE file for license rights and limitations (MIT).