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Add the ruleset for Vue.js 3
- Add `plugin:vue/vue3-essential` config - Add `plugin:vue/vue3-strongly-recommended` config - Add `plugin:vue/vue3-recommended` config
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‎.eslintrc.js

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@@ -29,6 +29,7 @@ module.exports = {
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rules: {
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"consistent-docs-description": "error",
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"no-invalid-meta": "error",
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"no-invalid-meta-docs-categories": "error",
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'eslint-plugin/require-meta-type': 'error',
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"require-meta-docs-url": ["error", {
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"pattern": `https://eslint.vuejs.org/rules/{{name}}.html`

‎docs/.vuepress/config.js

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const rules = require('../../tools/lib/rules')
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const categories = require('../../tools/lib/categories')
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const uncategorizedRules = rules.filter(rule => !rule.meta.docs.category && !rule.meta.deprecated)
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const uncategorizedRules = rules.filter(rule => !rule.meta.docs.categories && !rule.meta.deprecated)
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const deprecatedRules = rules.filter(rule => rule.meta.deprecated)
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const categorizedRules = []
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for (const category of categories) {
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const { title, rules } = category
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const children = rules
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.filter(({ ruleId }) => categorizedRules
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.every(({ children }) => {
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return children.every(([, alreadyRuleId]) => alreadyRuleId !== ruleId)
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}))
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.map(({ ruleId, name }) => [`/rules/${name}`, ruleId])
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if (children.length === 0) {
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continue
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}
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categorizedRules.push({
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title: title.text.replace(/ \(.+?\)/, ''),
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collapsable: false,
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children
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})
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}
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const extraCategories = []
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if (uncategorizedRules.length > 0) {
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extraCategories.push({
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'/rules/',
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// Rules in each category.
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...categories.map(({ title, rules }) => ({
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title: title.replace(/ \(.+?\)/, ''),
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collapsable: false,
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children: rules.map(({ ruleId, name }) => [`/rules/${name}`, ruleId])
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})),
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...categorizedRules,
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// Rules in no category.
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...extraCategories

‎docs/rules/README.md

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| [vue/comment-directive](./comment-directive.md) | support comment-directives in `<template>` | |
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| [vue/jsx-uses-vars](./jsx-uses-vars.md) | prevent variables used in JSX to be marked as unused | |
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## Priority A: Essential (Error Prevention)
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## Priority A: Essential (Error Prevention) <badge text="for Vue.js 3.x" vertical="middle">for Vue.js 3.x</badge>
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Enforce all the rules in this category, as well as all higher priority rules, with:
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```json
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{
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"extends": "plugin:vue/vue3-essential"
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}
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```
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| Rule ID | Description | |
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|:--------|:------------|:---|
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| [vue/no-async-in-computed-properties](./no-async-in-computed-properties.md) | disallow asynchronous actions in computed properties | |
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| [vue/no-deprecated-scope-attribute](./no-deprecated-scope-attribute.md) | disallow deprecated `scope` attribute (in Vue.js 2.5.0+) | :wrench: |
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| [vue/no-deprecated-slot-attribute](./no-deprecated-slot-attribute.md) | disallow deprecated `slot` attribute (in Vue.js 2.6.0+) | :wrench: |
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| [vue/no-deprecated-slot-scope-attribute](./no-deprecated-slot-scope-attribute.md) | disallow deprecated `slot-scope` attribute (in Vue.js 2.6.0+) | :wrench: |
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| [vue/no-dupe-keys](./no-dupe-keys.md) | disallow duplication of field names | |
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| [vue/no-duplicate-attributes](./no-duplicate-attributes.md) | disallow duplication of attributes | |
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| [vue/no-parsing-error](./no-parsing-error.md) | disallow parsing errors in `<template>` | |
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| [vue/no-reserved-keys](./no-reserved-keys.md) | disallow overwriting reserved keys | |
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| [vue/no-shared-component-data](./no-shared-component-data.md) | enforce component's data property to be a function | :wrench: |
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| [vue/no-side-effects-in-computed-properties](./no-side-effects-in-computed-properties.md) | disallow side effects in computed properties | |
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| [vue/no-template-key](./no-template-key.md) | disallow `key` attribute on `<template>` | |
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| [vue/no-textarea-mustache](./no-textarea-mustache.md) | disallow mustaches in `<textarea>` | |
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| [vue/no-unused-components](./no-unused-components.md) | disallow registering components that are not used inside templates | |
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| [vue/no-unused-vars](./no-unused-vars.md) | disallow unused variable definitions of v-for directives or scope attributes | |
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| [vue/no-use-v-if-with-v-for](./no-use-v-if-with-v-for.md) | disallow use v-if on the same element as v-for | |
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| [vue/require-component-is](./require-component-is.md) | require `v-bind:is` of `<component>` elements | |
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| [vue/require-prop-type-constructor](./require-prop-type-constructor.md) | require prop type to be a constructor | :wrench: |
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| [vue/require-render-return](./require-render-return.md) | enforce render function to always return value | |
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| [vue/require-v-for-key](./require-v-for-key.md) | require `v-bind:key` with `v-for` directives | |
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| [vue/require-valid-default-prop](./require-valid-default-prop.md) | enforce props default values to be valid | |
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| [vue/return-in-computed-property](./return-in-computed-property.md) | enforce that a return statement is present in computed property | |
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| [vue/use-v-on-exact](./use-v-on-exact.md) | enforce usage of `exact` modifier on `v-on` | |
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| [vue/valid-template-root](./valid-template-root.md) | enforce valid template root | |
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| [vue/valid-v-bind](./valid-v-bind.md) | enforce valid `v-bind` directives | |
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| [vue/valid-v-cloak](./valid-v-cloak.md) | enforce valid `v-cloak` directives | |
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| [vue/valid-v-else-if](./valid-v-else-if.md) | enforce valid `v-else-if` directives | |
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| [vue/valid-v-else](./valid-v-else.md) | enforce valid `v-else` directives | |
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| [vue/valid-v-for](./valid-v-for.md) | enforce valid `v-for` directives | |
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| [vue/valid-v-html](./valid-v-html.md) | enforce valid `v-html` directives | |
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| [vue/valid-v-if](./valid-v-if.md) | enforce valid `v-if` directives | |
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| [vue/valid-v-model](./valid-v-model.md) | enforce valid `v-model` directives | |
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| [vue/valid-v-on](./valid-v-on.md) | enforce valid `v-on` directives | |
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| [vue/valid-v-once](./valid-v-once.md) | enforce valid `v-once` directives | |
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| [vue/valid-v-pre](./valid-v-pre.md) | enforce valid `v-pre` directives | |
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| [vue/valid-v-show](./valid-v-show.md) | enforce valid `v-show` directives | |
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| [vue/valid-v-text](./valid-v-text.md) | enforce valid `v-text` directives | |
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## Priority B: Strongly Recommended (Improving Readability) <badge text="for Vue.js 3.x" vertical="middle">for Vue.js 3.x</badge>
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Enforce all the rules in this category, as well as all higher priority rules, with:
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```json
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{
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"extends": "plugin:vue/vue3-strongly-recommended"
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}
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```
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| Rule ID | Description | |
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|:--------|:------------|:---|
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| [vue/attribute-hyphenation](./attribute-hyphenation.md) | enforce attribute naming style on custom components in template | :wrench: |
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| [vue/html-closing-bracket-newline](./html-closing-bracket-newline.md) | require or disallow a line break before tag's closing brackets | :wrench: |
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| [vue/html-closing-bracket-spacing](./html-closing-bracket-spacing.md) | require or disallow a space before tag's closing brackets | :wrench: |
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| [vue/html-end-tags](./html-end-tags.md) | enforce end tag style | :wrench: |
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| [vue/html-indent](./html-indent.md) | enforce consistent indentation in `<template>` | :wrench: |
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| [vue/html-quotes](./html-quotes.md) | enforce quotes style of HTML attributes | :wrench: |
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| [vue/html-self-closing](./html-self-closing.md) | enforce self-closing style | :wrench: |
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| [vue/max-attributes-per-line](./max-attributes-per-line.md) | enforce the maximum number of attributes per line | :wrench: |
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| [vue/multiline-html-element-content-newline](./multiline-html-element-content-newline.md) | require a line break before and after the contents of a multiline element | :wrench: |
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| [vue/mustache-interpolation-spacing](./mustache-interpolation-spacing.md) | enforce unified spacing in mustache interpolations | :wrench: |
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| [vue/name-property-casing](./name-property-casing.md) | enforce specific casing for the name property in Vue components | :wrench: |
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| [vue/no-multi-spaces](./no-multi-spaces.md) | disallow multiple spaces | :wrench: |
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| [vue/no-spaces-around-equal-signs-in-attribute](./no-spaces-around-equal-signs-in-attribute.md) | disallow spaces around equal signs in attribute | :wrench: |
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| [vue/no-template-shadow](./no-template-shadow.md) | disallow variable declarations from shadowing variables declared in the outer scope | |
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| [vue/prop-name-casing](./prop-name-casing.md) | enforce specific casing for the Prop name in Vue components | |
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| [vue/require-default-prop](./require-default-prop.md) | require default value for props | |
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| [vue/require-prop-types](./require-prop-types.md) | require type definitions in props | |
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| [vue/singleline-html-element-content-newline](./singleline-html-element-content-newline.md) | require a line break before and after the contents of a singleline element | :wrench: |
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| [vue/v-bind-style](./v-bind-style.md) | enforce `v-bind` directive style | :wrench: |
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| [vue/v-on-style](./v-on-style.md) | enforce `v-on` directive style | :wrench: |
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## Priority C: Recommended (Minimizing Arbitrary Choices and Cognitive Overhead) <badge text="for Vue.js 3.x" vertical="middle">for Vue.js 3.x</badge>
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Enforce all the rules in this category, as well as all higher priority rules, with:
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```json
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{
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"extends": "plugin:vue/vue3-recommended"
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}
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```
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| Rule ID | Description | |
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|:--------|:------------|:---|
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| [vue/attributes-order](./attributes-order.md) | enforce order of attributes | :wrench: |
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| [vue/no-v-html](./no-v-html.md) | disallow use of v-html to prevent XSS attack | |
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| [vue/order-in-components](./order-in-components.md) | enforce order of properties in components | :wrench: |
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| [vue/this-in-template](./this-in-template.md) | disallow usage of `this` in template | |
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## Priority A: Essential (Error Prevention) <badge text="for Vue.js 2.x" vertical="middle" type="warn">for Vue.js 2.x</badge>
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Enforce all the rules in this category, as well as all higher priority rules, with:
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| [vue/valid-v-show](./valid-v-show.md) | enforce valid `v-show` directives | |
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| [vue/valid-v-text](./valid-v-text.md) | enforce valid `v-text` directives | |
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## Priority B: Strongly Recommended (Improving Readability)
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## Priority B: Strongly Recommended (Improving Readability) <badge text="for Vue.js 2.x" vertical="middle" type="warn">for Vue.js 2.x</badge>
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| [vue/v-bind-style](./v-bind-style.md) | enforce `v-bind` directive style | :wrench: |
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| [vue/v-on-style](./v-on-style.md) | enforce `v-on` directive style | :wrench: |
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## Priority C: Recommended (Minimizing Arbitrary Choices and Cognitive Overhead)
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## Priority C: Recommended (Minimizing Arbitrary Choices and Cognitive Overhead) <badge text="for Vue.js 2.x" vertical="middle" type="warn">for Vue.js 2.x</badge>
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| [vue/match-component-file-name](./match-component-file-name.md) | require component name property to match its file name | |
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| [vue/max-len](./max-len.md) | enforce a maximum line length | |
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| [vue/no-boolean-default](./no-boolean-default.md) | disallow boolean defaults | :wrench: |
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| [vue/no-deprecated-scope-attribute](./no-deprecated-scope-attribute.md) | disallow deprecated `scope` attribute (in Vue.js 2.5.0+) | :wrench: |
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| [vue/no-deprecated-slot-attribute](./no-deprecated-slot-attribute.md) | disallow deprecated `slot` attribute (in Vue.js 2.6.0+) | :wrench: |
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| [vue/no-deprecated-slot-scope-attribute](./no-deprecated-slot-scope-attribute.md) | disallow deprecated `slot-scope` attribute (in Vue.js 2.6.0+) | :wrench: |
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| [vue/no-empty-pattern](./no-empty-pattern.md) | disallow empty destructuring patterns | |
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| [vue/no-irregular-whitespace](./no-irregular-whitespace.md) | disallow irregular whitespace | |
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| [vue/no-reserved-component-names](./no-reserved-component-names.md) | disallow the use of reserved names in component definitions | |

‎docs/rules/attribute-hyphenation.md

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# vue/attribute-hyphenation
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> enforce attribute naming style on custom components in template
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- :gear: This rule is included in `"plugin:vue/strongly-recommended"` and `"plugin:vue/recommended"`.
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- :gear: This rule is included in all of `"plugin:vue/vue3-strongly-recommended"`, `"plugin:vue/strongly-recommended"`, `"plugin:vue/vue3-recommended"` and `"plugin:vue/recommended"`.
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- :wrench: The `--fix` option on the [command line](https://eslint.org/docs/user-guide/command-line-interface#fixing-problems) can automatically fix some of the problems reported by this rule.
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## :book: Rule Details

‎docs/rules/attributes-order.md

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# vue/attributes-order
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> enforce order of attributes
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- :gear: This rule is included in `"plugin:vue/recommended"`.
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- :gear: This rule is included in `"plugin:vue/vue3-recommended"` and `"plugin:vue/recommended"`.
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- :wrench: The `--fix` option on the [command line](https://eslint.org/docs/user-guide/command-line-interface#fixing-problems) can automatically fix some of the problems reported by this rule.
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## :book: Rule Details

‎docs/rules/html-closing-bracket-newline.md

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# vue/html-closing-bracket-newline
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> require or disallow a line break before tag's closing brackets
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- :gear: This rule is included in `"plugin:vue/strongly-recommended"` and `"plugin:vue/recommended"`.
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- :gear: This rule is included in all of `"plugin:vue/vue3-strongly-recommended"`, `"plugin:vue/strongly-recommended"`, `"plugin:vue/vue3-recommended"` and `"plugin:vue/recommended"`.
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- :wrench: The `--fix` option on the [command line](https://eslint.org/docs/user-guide/command-line-interface#fixing-problems) can automatically fix some of the problems reported by this rule.
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People have their own preference about the location of closing brackets.

‎docs/rules/html-closing-bracket-spacing.md

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# vue/html-closing-bracket-spacing
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> require or disallow a space before tag's closing brackets
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- :gear: This rule is included in `"plugin:vue/strongly-recommended"` and `"plugin:vue/recommended"`.
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- :gear: This rule is included in all of `"plugin:vue/vue3-strongly-recommended"`, `"plugin:vue/strongly-recommended"`, `"plugin:vue/vue3-recommended"` and `"plugin:vue/recommended"`.
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- :wrench: The `--fix` option on the [command line](https://eslint.org/docs/user-guide/command-line-interface#fixing-problems) can automatically fix some of the problems reported by this rule.
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## :book: Rule Details

‎docs/rules/html-end-tags.md

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# vue/html-end-tags
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> enforce end tag style
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- :gear: This rule is included in `"plugin:vue/strongly-recommended"` and `"plugin:vue/recommended"`.
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- :gear: This rule is included in all of `"plugin:vue/vue3-strongly-recommended"`, `"plugin:vue/strongly-recommended"`, `"plugin:vue/vue3-recommended"` and `"plugin:vue/recommended"`.
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- :wrench: The `--fix` option on the [command line](https://eslint.org/docs/user-guide/command-line-interface#fixing-problems) can automatically fix some of the problems reported by this rule.
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## :book: Rule Details

‎docs/rules/html-indent.md

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# vue/html-indent
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> enforce consistent indentation in `<template>`
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- :gear: This rule is included in `"plugin:vue/strongly-recommended"` and `"plugin:vue/recommended"`.
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- :gear: This rule is included in all of `"plugin:vue/vue3-strongly-recommended"`, `"plugin:vue/strongly-recommended"`, `"plugin:vue/vue3-recommended"` and `"plugin:vue/recommended"`.
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- :wrench: The `--fix` option on the [command line](https://eslint.org/docs/user-guide/command-line-interface#fixing-problems) can automatically fix some of the problems reported by this rule.
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## :book: Rule Details

‎docs/rules/html-quotes.md

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# vue/html-quotes
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> enforce quotes style of HTML attributes
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- :gear: This rule is included in `"plugin:vue/strongly-recommended"` and `"plugin:vue/recommended"`.
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- :gear: This rule is included in all of `"plugin:vue/vue3-strongly-recommended"`, `"plugin:vue/strongly-recommended"`, `"plugin:vue/vue3-recommended"` and `"plugin:vue/recommended"`.
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- :wrench: The `--fix` option on the [command line](https://eslint.org/docs/user-guide/command-line-interface#fixing-problems) can automatically fix some of the problems reported by this rule.
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You can choose quotes of HTML attributes from:

‎docs/rules/html-self-closing.md

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# vue/html-self-closing
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> enforce self-closing style
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- :gear: This rule is included in `"plugin:vue/strongly-recommended"` and `"plugin:vue/recommended"`.
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- :gear: This rule is included in all of `"plugin:vue/vue3-strongly-recommended"`, `"plugin:vue/strongly-recommended"`, `"plugin:vue/vue3-recommended"` and `"plugin:vue/recommended"`.
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- :wrench: The `--fix` option on the [command line](https://eslint.org/docs/user-guide/command-line-interface#fixing-problems) can automatically fix some of the problems reported by this rule.
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## :book: Rule Details

‎docs/rules/max-attributes-per-line.md

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# vue/max-attributes-per-line
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> enforce the maximum number of attributes per line
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- :gear: This rule is included in `"plugin:vue/strongly-recommended"` and `"plugin:vue/recommended"`.
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- :gear: This rule is included in all of `"plugin:vue/vue3-strongly-recommended"`, `"plugin:vue/strongly-recommended"`, `"plugin:vue/vue3-recommended"` and `"plugin:vue/recommended"`.
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- :wrench: The `--fix` option on the [command line](https://eslint.org/docs/user-guide/command-line-interface#fixing-problems) can automatically fix some of the problems reported by this rule.
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Limits the maximum number of attributes/properties per line to improve readability.

‎docs/rules/multiline-html-element-content-newline.md

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# vue/multiline-html-element-content-newline
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> require a line break before and after the contents of a multiline element
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- :gear: This rule is included in `"plugin:vue/strongly-recommended"` and `"plugin:vue/recommended"`.
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- :gear: This rule is included in all of `"plugin:vue/vue3-strongly-recommended"`, `"plugin:vue/strongly-recommended"`, `"plugin:vue/vue3-recommended"` and `"plugin:vue/recommended"`.
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- :wrench: The `--fix` option on the [command line](https://eslint.org/docs/user-guide/command-line-interface#fixing-problems) can automatically fix some of the problems reported by this rule.
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## :book: Rule Details

‎docs/rules/mustache-interpolation-spacing.md

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# vue/mustache-interpolation-spacing
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> enforce unified spacing in mustache interpolations
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- :gear: This rule is included in `"plugin:vue/strongly-recommended"` and `"plugin:vue/recommended"`.
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- :gear: This rule is included in all of `"plugin:vue/vue3-strongly-recommended"`, `"plugin:vue/strongly-recommended"`, `"plugin:vue/vue3-recommended"` and `"plugin:vue/recommended"`.
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- :wrench: The `--fix` option on the [command line](https://eslint.org/docs/user-guide/command-line-interface#fixing-problems) can automatically fix some of the problems reported by this rule.
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## :book: Rule Details

‎docs/rules/name-property-casing.md

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# vue/name-property-casing
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> enforce specific casing for the name property in Vue components
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- :gear: This rule is included in `"plugin:vue/strongly-recommended"` and `"plugin:vue/recommended"`.
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- :gear: This rule is included in all of `"plugin:vue/vue3-strongly-recommended"`, `"plugin:vue/strongly-recommended"`, `"plugin:vue/vue3-recommended"` and `"plugin:vue/recommended"`.
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- :wrench: The `--fix` option on the [command line](https://eslint.org/docs/user-guide/command-line-interface#fixing-problems) can automatically fix some of the problems reported by this rule.
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## :book: Rule Details

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