eslint-plugin-github

Installation

npm install --save-dev eslint eslint-plugin-github

Setup

Legacy Configuration (`.eslintrc`)

Add github to your list of plugins in your ESLint config.

JSON ESLint config example:

{
  "plugins": ["github"]
}

Extend the configs you wish to use.

JSON ESLint config example:

{
  "extends": ["plugin:github/recommended"]
}

Flat Configuration (`eslint-config.js`)

Import the eslint-plugin-github, and extend any of the configurations using getFlatConfigs() as needed like so:

import github from 'eslint-plugin-github'

export default [
  github.getFlatConfigs().browser,
  github.getFlatConfigs().recommended,
  github.getFlatConfigs().react,
  ...github.getFlatConfigs().typescript,
  {
    files: ['**/*.{js,mjs,cjs,jsx,mjsx,ts,tsx,mtsx}'],
    ignores: ['eslint.config.mjs'],
    rules: {
      'github/array-foreach': 'error',
      'github/async-preventdefault': 'warn',
      'github/no-then': 'error',
      'github/no-blur': 'error',
    },
  },
]

Note

If you configured the filenames/match-regex rule, please note we have adapted the match regex rule into eslint-plugin-github as the original eslint-filenames-plugin is no longer maintained and needed a flat config support update.

Please update the name to github/filenames-match-regex, and note, the default rule is kebab case or camelCase with one hump. For custom configuration, such as matching for camelCase regex, here's an example:

'github/filenames-match-regex': ['error', '^([a-z0-9]+)([A-Z][a-z0-9]+)*$'],

The available configs are:

internal
- Rules useful for github applications.
browser
- Useful rules when shipping your app to the browser.
react
- Recommended rules for React applications.
recommended
- Recommended rules for every application.
typescript
- Useful rules when writing TypeScript.

Component mapping (Experimental)

Note: This is experimental and subject to change.

The react config includes rules which target specific HTML elements. You may provide a mapping of custom components to an HTML element in your eslintrc configuration to increase linter coverage.

By default, these eslint rules will check the "as" prop for underlying element changes. If your repo uses a different prop name for polymorphic components provide the prop name in your eslintrc configuration under polymorphicPropName.

{
  "settings": {
    "github": {
      "polymorphicPropName": "asChild",
      "components": {
        "Box": "p",
        "Link": "a"
      }
    }
  }
}

This config will be interpreted in the following way:

All <Box> elements will be treated as a p element type.
<Link> without a defined as prop will be treated as a a.
<Link as='button'> will be treated as a button element type.

Rules

💼 Configurations enabled in.
🔍 Set in the browser configuration.
🔐 Set in the internal configuration.
⚛️ Set in the react configuration.
✅ Set in the recommended configuration.
🔧 Automatically fixable by the --fix CLI option.
❌ Deprecated.

Name	Description	💼	🔧	❌
a11y-aria-label-is-well-formatted	enforce [aria-label] text to be formatted as you would visual text.	⚛️
a11y-no-generic-link-text	disallow generic link text			❌
a11y-no-title-attribute	disallow using the title attribute	⚛️
a11y-no-visually-hidden-interactive-element	enforce that interactive elements are not visually hidden	⚛️
a11y-role-supports-aria-props	enforce that elements with explicit or implicit roles defined contain only `aria-*` properties supported by that `role`.	⚛️
a11y-svg-has-accessible-name	require SVGs to have an accessible name	⚛️
array-foreach	enforce `for..of` loops over `Array.forEach`	✅
async-currenttarget	disallow `event.currentTarget` calls inside of async functions	🔍
async-preventdefault	disallow `event.preventDefault` calls inside of async functions	🔍
authenticity-token	disallow usage of CSRF tokens in JavaScript	🔐
filenames-match-regex	require filenames to match a regex naming convention
get-attribute	disallow wrong usage of attribute names	🔍	🔧
js-class-name	enforce a naming convention for js- prefixed classes	🔐
no-blur	disallow usage of `Element.prototype.blur()`	🔍
no-d-none	disallow usage the `d-none` CSS class	🔐
no-dataset	enforce usage of `Element.prototype.getAttribute` instead of `Element.prototype.datalist`	🔍
no-dynamic-script-tag	disallow creating dynamic script tags	✅
no-implicit-buggy-globals	disallow implicit global variables	✅
no-inner-html	disallow `Element.prototype.innerHTML` in favor of `Element.prototype.textContent`	🔍
no-innerText	disallow `Element.prototype.innerText` in favor of `Element.prototype.textContent`	🔍	🔧
no-then	enforce using `async/await` syntax over Promises	✅
no-useless-passive	disallow marking a event handler as passive when it has no effect	🔍	🔧
prefer-observers	disallow poorly performing event listeners	🔍
require-passive-events	enforce marking high frequency event handlers as passive	🔍
unescaped-html-literal	disallow unescaped HTML literals	🔍

License

github/eslint-plugin-github

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