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Gathering detailed insights and metrics for eslint-plugin-unicorn

eslint-plugin-unicorn

More than 100 powerful ESLint rules

56.0.1

4,307

MIT

JavaScript

269.99 kB

332,999,007 5.7

Installations

npm install eslint-plugin-unicorn

Score

75.1

Supply Chain

93.6

Quality

87.9

Maintenance

100

Vulnerability

97.9

License

Pull Requests

Open

4

Total

1,305

Closed

125

Merged

1,176

Issues

Open

374

Total

1,193

Closed

819

Releases

102

v56.0.1

Published on 19 Nov 2024

v56.0.0

Published on 03 Oct 2024

v55.0.0

Published on 24 Jul 2024

v54.0.0

Published on 14 Jun 2024

v53.0.0

Published on 10 May 2024

v52.0.0

Published on 03 Apr 2024

View all 102 releases

Contributors

155

View all 155 contributors

Developer

sindresorhus

Developer Guide

BETA

Module System

CommonJS

Min. Node Version

>=18.18

Typescript Support

Yes

Node Version

18.20.4

NPM Version

10.6.0 Statistics

4,307 Stars

1,419 Commits

365 Forks

23 Watching

2 Branches

155 Contributors

Updated on 27 Nov 2024

Bundle Size

1.34 MB

Minified

269.99 kB

Minified + Gzipped

Bundlephobia

Languages

JavaScript (99.84%)

EJS (0.16%)

Total Downloads

Cumulative downloads

Total Downloads

332,999,007

Last day

-4.7%

592,693

Compared to previous day

Last week

3.2%

3,363,258

Compared to previous week

Last month

16.3%

13,655,289

Compared to previous month

Last year

55.5%

128,148,428

Compared to previous year

Daily Downloads

Weekly Downloads

Monthly Downloads

Yearly Downloads

Versions

eslint-plugin-unicorn

More than 100 powerful ESLint rules

You might want to check out XO, which includes this plugin.

Propose or contribute a new rule ➡

Install

1npm install --save-dev eslint eslint-plugin-unicorn

Usage (`eslint.config.js`)

Requires ESLint >=8.56.0.

Use a preset config or configure each rule in eslint.config.js.

If you don't use the preset, ensure you use the same languageOptions config as below.

ES Module (Recommended)

1import eslintPluginUnicorn from 'eslint-plugin-unicorn';
2import globals from 'globals';
3
4export default [
5	{
6		languageOptions: {
7			globals: globals.builtin,
8		},
9		plugins: {
10			unicorn: eslintPluginUnicorn,
11		},
12		rules: {
13			'unicorn/better-regex': 'error',
14			'unicorn/…': 'error',
15		},
16	},
17	// …
18];

CommonJS

1'use strict';
2const eslintPluginUnicorn = require('eslint-plugin-unicorn');
3const globals = require('globals');
4
5module.exports = [
6	{
7		languageOptions: {
8			globals: globals.builtin,
9		},
10		plugins: {
11			unicorn: eslintPluginUnicorn,
12		},
13		rules: {
14			'unicorn/better-regex': 'error',
15			'unicorn/…': 'error',
16		},
17	},
18	// …
19];

Usage (legacy: `.eslintrc.*` or `package.json`)

Use a preset config or configure each rule in package.json.

If you don't use the preset, ensure you use the same env and parserOptions config as below.

1{
2	"name": "my-awesome-project",
3	"eslintConfig": {
4		"env": {
5			"es2024": true
6		},
7		"parserOptions": {
8			"ecmaVersion": "latest",
9			"sourceType": "module"
10		},
11		"plugins": [
12			"unicorn"
13		],
14		"rules": {
15			"unicorn/better-regex": "error",
16			"unicorn/…": "error"
17		}
18	}
19}

Rules

💼 Configurations enabled in.
✅ Set in the recommended configuration.
🔧 Automatically fixable by the --fix CLI option.
💡 Manually fixable by editor suggestions.

Name	Description	💼	🔧	💡
better-regex	Improve regexes by making them shorter, consistent, and safer.		🔧
catch-error-name	Enforce a specific parameter name in catch clauses.	✅	🔧
consistent-destructuring	Use destructured variables over properties.		🔧	💡
consistent-empty-array-spread	Prefer consistent types when spreading a ternary in an array literal.	✅	🔧
consistent-existence-index-check	Enforce consistent style for element existence checks with `indexOf()`, `lastIndexOf()`, `findIndex()`, and `findLastIndex()`.	✅	🔧
consistent-function-scoping	Move function definitions to the highest possible scope.	✅
custom-error-definition	Enforce correct `Error` subclassing.		🔧
empty-brace-spaces	Enforce no spaces between braces.	✅	🔧
error-message	Enforce passing a `message` value when creating a built-in error.	✅
escape-case	Require escape sequences to use uppercase values.	✅	🔧
expiring-todo-comments	Add expiration conditions to TODO comments.	✅
explicit-length-check	Enforce explicitly comparing the `length` or `size` property of a value.	✅	🔧	💡
filename-case	Enforce a case style for filenames.	✅
import-style	Enforce specific import styles per module.	✅
new-for-builtins	Enforce the use of `new` for all builtins, except `String`, `Number`, `Boolean`, `Symbol` and `BigInt`.	✅	🔧
no-abusive-eslint-disable	Enforce specifying rules to disable in `eslint-disable` comments.	✅
no-anonymous-default-export	Disallow anonymous functions and classes as the default export.	✅		💡
no-array-callback-reference	Prevent passing a function reference directly to iterator methods.	✅		💡
no-array-for-each	Prefer `for…of` over the `forEach` method.	✅	🔧	💡
no-array-method-this-argument	Disallow using the `this` argument in array methods.	✅	🔧	💡
no-array-push-push	Enforce combining multiple `Array#push()` into one call.	✅	🔧	💡
no-array-reduce	Disallow `Array#reduce()` and `Array#reduceRight()`.	✅
no-await-expression-member	Disallow member access from await expression.	✅	🔧
no-await-in-promise-methods	Disallow using `await` in `Promise` method parameters.	✅		💡
no-console-spaces	Do not use leading/trailing space between `console.log` parameters.	✅	🔧
no-document-cookie	Do not use `document.cookie` directly.	✅
no-empty-file	Disallow empty files.	✅
no-for-loop	Do not use a `for` loop that can be replaced with a `for-of` loop.	✅	🔧	💡
no-hex-escape	Enforce the use of Unicode escapes instead of hexadecimal escapes.	✅	🔧
no-instanceof-array	Require `Array.isArray()` instead of `instanceof Array`.	✅	🔧
no-invalid-fetch-options	Disallow invalid options in `fetch()` and `new Request()`.	✅
no-invalid-remove-event-listener	Prevent calling `EventTarget#removeEventListener()` with the result of an expression.	✅
no-keyword-prefix	Disallow identifiers starting with `new` or `class`.
no-length-as-slice-end	Disallow using `.length` as the `end` argument of `{Array,String,TypedArray}#slice()`.	✅	🔧
no-lonely-if	Disallow `if` statements as the only statement in `if` blocks without `else`.	✅	🔧
no-magic-array-flat-depth	Disallow a magic number as the `depth` argument in `Array#flat(…).`	✅
no-negated-condition	Disallow negated conditions.	✅	🔧
no-negation-in-equality-check	Disallow negated expression in equality check.	✅		💡
no-nested-ternary	Disallow nested ternary expressions.	✅	🔧
no-new-array	Disallow `new Array()`.	✅	🔧	💡
no-new-buffer	Enforce the use of `Buffer.from()` and `Buffer.alloc()` instead of the deprecated `new Buffer()`.	✅	🔧	💡
no-null	Disallow the use of the `null` literal.	✅	🔧	💡
no-object-as-default-parameter	Disallow the use of objects as default parameters.	✅
no-process-exit	Disallow `process.exit()`.	✅
no-single-promise-in-promise-methods	Disallow passing single-element arrays to `Promise` methods.	✅	🔧	💡
no-static-only-class	Disallow classes that only have static members.	✅	🔧
no-thenable	Disallow `then` property.	✅
no-this-assignment	Disallow assigning `this` to a variable.	✅
no-typeof-undefined	Disallow comparing `undefined` using `typeof`.	✅	🔧	💡
no-unnecessary-await	Disallow awaiting non-promise values.	✅	🔧
no-unnecessary-polyfills	Enforce the use of built-in methods instead of unnecessary polyfills.	✅
no-unreadable-array-destructuring	Disallow unreadable array destructuring.	✅	🔧
no-unreadable-iife	Disallow unreadable IIFEs.	✅
no-unused-properties	Disallow unused object properties.
no-useless-fallback-in-spread	Disallow useless fallback when spreading in object literals.	✅	🔧
no-useless-length-check	Disallow useless array length check.	✅	🔧
no-useless-promise-resolve-reject	Disallow returning/yielding `Promise.resolve/reject()` in async functions or promise callbacks	✅	🔧
no-useless-spread	Disallow unnecessary spread.	✅	🔧
no-useless-switch-case	Disallow useless case in switch statements.	✅		💡
no-useless-undefined	Disallow useless `undefined`.	✅	🔧
no-zero-fractions	Disallow number literals with zero fractions or dangling dots.	✅	🔧
number-literal-case	Enforce proper case for numeric literals.	✅	🔧
numeric-separators-style	Enforce the style of numeric separators by correctly grouping digits.	✅	🔧
prefer-add-event-listener	Prefer `.addEventListener()` and `.removeEventListener()` over `on`-functions.	✅	🔧
prefer-array-find	Prefer `.find(…)` and `.findLast(…)` over the first or last element from `.filter(…)`.	✅	🔧	💡
prefer-array-flat	Prefer `Array#flat()` over legacy techniques to flatten arrays.	✅	🔧
prefer-array-flat-map	Prefer `.flatMap(…)` over `.map(…).flat()`.	✅	🔧
prefer-array-index-of	Prefer `Array#{indexOf,lastIndexOf}()` over `Array#{findIndex,findLastIndex}()` when looking for the index of an item.	✅	🔧	💡
prefer-array-some	Prefer `.some(…)` over `.filter(…).length` check and `.{find,findLast,findIndex,findLastIndex}(…)`.	✅	🔧	💡
prefer-at	Prefer `.at()` method for index access and `String#charAt()`.	✅	🔧	💡
prefer-blob-reading-methods	Prefer `Blob#arrayBuffer()` over `FileReader#readAsArrayBuffer(…)` and `Blob#text()` over `FileReader#readAsText(…)`.	✅
prefer-code-point	Prefer `String#codePointAt(…)` over `String#charCodeAt(…)` and `String.fromCodePoint(…)` over `String.fromCharCode(…)`.	✅		💡
prefer-date-now	Prefer `Date.now()` to get the number of milliseconds since the Unix Epoch.	✅	🔧
prefer-default-parameters	Prefer default parameters over reassignment.	✅	🔧	💡
prefer-dom-node-append	Prefer `Node#append()` over `Node#appendChild()`.	✅	🔧
prefer-dom-node-dataset	Prefer using `.dataset` on DOM elements over calling attribute methods.	✅	🔧
prefer-dom-node-remove	Prefer `childNode.remove()` over `parentNode.removeChild(childNode)`.	✅	🔧	💡
prefer-dom-node-text-content	Prefer `.textContent` over `.innerText`.	✅		💡
prefer-event-target	Prefer `EventTarget` over `EventEmitter`.	✅
prefer-export-from	Prefer `export…from` when re-exporting.	✅	🔧	💡
prefer-global-this	Prefer `globalThis` over `window`, `self`, and `global`.	✅	🔧
prefer-includes	Prefer `.includes()` over `.indexOf()`, `.lastIndexOf()`, and `Array#some()` when checking for existence or non-existence.	✅	🔧	💡
prefer-json-parse-buffer	Prefer reading a JSON file as a buffer.		🔧
prefer-keyboard-event-key	Prefer `KeyboardEvent#key` over `KeyboardEvent#keyCode`.	✅	🔧
prefer-logical-operator-over-ternary	Prefer using a logical operator over a ternary.	✅		💡
prefer-math-min-max	Prefer `Math.min()` and `Math.max()` over ternaries for simple comparisons.	✅	🔧
prefer-math-trunc	Enforce the use of `Math.trunc` instead of bitwise operators.	✅	🔧	💡
prefer-modern-dom-apis	Prefer `.before()` over `.insertBefore()`, `.replaceWith()` over `.replaceChild()`, prefer one of `.before()`, `.after()`, `.append()` or `.prepend()` over `insertAdjacentText()` and `insertAdjacentElement()`.	✅	🔧
prefer-modern-math-apis	Prefer modern `Math` APIs over legacy patterns.	✅	🔧
prefer-module	Prefer JavaScript modules (ESM) over CommonJS.	✅	🔧	💡
prefer-native-coercion-functions	Prefer using `String`, `Number`, `BigInt`, `Boolean`, and `Symbol` directly.	✅	🔧
prefer-negative-index	Prefer negative index over `.length - index` when possible.	✅	🔧
prefer-node-protocol	Prefer using the `node:` protocol when importing Node.js builtin modules.	✅	🔧
prefer-number-properties	Prefer `Number` static properties over global ones.	✅	🔧	💡
prefer-object-from-entries	Prefer using `Object.fromEntries(…)` to transform a list of key-value pairs into an object.	✅	🔧
prefer-optional-catch-binding	Prefer omitting the `catch` binding parameter.	✅	🔧
prefer-prototype-methods	Prefer borrowing methods from the prototype instead of the instance.	✅	🔧
prefer-query-selector	Prefer `.querySelector()` over `.getElementById()`, `.querySelectorAll()` over `.getElementsByClassName()` and `.getElementsByTagName()` and `.getElementsByName()`.	✅	🔧
prefer-reflect-apply	Prefer `Reflect.apply()` over `Function#apply()`.	✅	🔧
prefer-regexp-test	Prefer `RegExp#test()` over `String#match()` and `RegExp#exec()`.	✅	🔧	💡
prefer-set-has	Prefer `Set#has()` over `Array#includes()` when checking for existence or non-existence.	✅	🔧	💡
prefer-set-size	Prefer using `Set#size` instead of `Array#length`.	✅	🔧
prefer-spread	Prefer the spread operator over `Array.from(…)`, `Array#concat(…)`, `Array#{slice,toSpliced}()` and `String#split('')`.	✅	🔧	💡
prefer-string-raw	Prefer using the `String.raw` tag to avoid escaping `\`.	✅	🔧
prefer-string-replace-all	Prefer `String#replaceAll()` over regex searches with the global flag.	✅	🔧
prefer-string-slice	Prefer `String#slice()` over `String#substr()` and `String#substring()`.	✅	🔧
prefer-string-starts-ends-with	Prefer `String#startsWith()` & `String#endsWith()` over `RegExp#test()`.	✅	🔧	💡
prefer-string-trim-start-end	Prefer `String#trimStart()` / `String#trimEnd()` over `String#trimLeft()` / `String#trimRight()`.	✅	🔧
prefer-structured-clone	Prefer using `structuredClone` to create a deep clone.	✅		💡
prefer-switch	Prefer `switch` over multiple `else-if`.	✅	🔧
prefer-ternary	Prefer ternary expressions over simple `if-else` statements.	✅	🔧
prefer-top-level-await	Prefer top-level await over top-level promises and async function calls.	✅		💡
prefer-type-error	Enforce throwing `TypeError` in type checking conditions.	✅	🔧
prevent-abbreviations	Prevent abbreviations.	✅	🔧
relative-url-style	Enforce consistent relative URL style.	✅	🔧	💡
require-array-join-separator	Enforce using the separator argument with `Array#join()`.	✅	🔧
require-number-to-fixed-digits-argument	Enforce using the digits argument with `Number#toFixed()`.	✅	🔧
require-post-message-target-origin	Enforce using the `targetOrigin` argument with `window.postMessage()`.			💡
string-content	Enforce better string content.		🔧	💡
switch-case-braces	Enforce consistent brace style for `case` clauses.	✅	🔧
template-indent	Fix whitespace-insensitive template indentation.	✅	🔧
text-encoding-identifier-case	Enforce consistent case for text encoding identifiers.	✅	🔧	💡
throw-new-error	Require `new` when creating an error.	✅	🔧

Deprecated Rules

See docs/deprecated-rules.md

Preset configs (`eslint.config.js`)

See the ESLint docs for more information about extending config files.

Note: Preset configs will also enable the correct language options.

Recommended config

This plugin exports a recommended config that enforces good practices.

ES Module (Recommended)

1import eslintPluginUnicorn from 'eslint-plugin-unicorn';
2
3export default [
4		// …
5		eslintPluginUnicorn.configs['flat/recommended'],
6		{
7			rules: {
8				'unicorn/better-regex': 'warn',
9			},
10		},
11];

CommonJS

1'use strict';
2const eslintPluginUnicorn = require('eslint-plugin-unicorn');
3
4module.exports = [
5		// …
6		eslintPluginUnicorn.configs['flat/recommended'],
7		{
8			rules: {
9				'unicorn/better-regex': 'warn',
10			},
11		},
12];

All config

This plugin exports an all that makes use of all rules (except for deprecated ones).

ES Module (Recommended)

1import eslintPluginUnicorn from 'eslint-plugin-unicorn';
2
3export default [
4		// …
5		eslintPluginUnicorn.configs['flat/all'],
6		{
7			rules: {
8				'unicorn/better-regex': 'warn',
9			},
10		},
11];

CommonJS

1'use strict';
2const eslintPluginUnicorn = require('eslint-plugin-unicorn');
3
4module.exports = [
5		// …
6		eslintPluginUnicorn.configs['flat/all'],
7		{
8			rules: {
9				'unicorn/better-regex': 'warn',
10			},
11		},
12];

Legacy preset configs (`.eslintrc.*` or `package.json`)

See the ESLint docs for more information about extending deprecated legacy config files.

Note: Preset configs will also enable the correct parser options and environment.

Recommended legacy config

This plugin exports a recommended legacy config that enforces good practices.

1{
2	"name": "my-awesome-project",
3	"eslintConfig": {
4		"extends": "plugin:unicorn/recommended",
5		"rules": {
6			"unicorn/better-regex": "warn"
7		}
8	}
9}

All legacy config

This plugin exports an all legacy config that makes use of all rules (except for deprecated ones).

1{
2	"name": "my-awesome-project",
3	"eslintConfig": {
4		"extends": "plugin:unicorn/all"
5	}
6}

Maintainers

Former

No vulnerabilities found.

10

Dangerous-Workflow

Determines if the project's GitHub Action workflows avoid dangerous patterns.

10

Security-Policy

Determines if the project has published a security policy.

10

Maintained

Determines if the project is "actively maintained".

10

Vulnerabilities

Determines if the project has open, known unfixed vulnerabilities.

10

License

Determines if the project has defined a license.

10

Binary-Artifacts

Determines if the project has generated executable (binary) artifacts in the source repository.

7

Code-Review

Determines if the project requires human code review before pull requests (aka merge requests) are merged.

0

Token-Permissions

Determines if the project's workflows follow the principle of least privilege.

0

CII-Best-Practices

Determines if the project has an OpenSSF (formerly CII) Best Practices Badge.

0

Pinned-Dependencies

Determines if the project has declared and pinned the dependencies of its build process.

Reason

dependency not pinned by hash detected -- score normalized to 0

Details

Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/main.yml:63: update your workflow using https://app.stepsecurity.io/secureworkflow/sindresorhus/eslint-plugin-unicorn/main.yml/main?enable=pin
Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/main.yml:64: update your workflow using https://app.stepsecurity.io/secureworkflow/sindresorhus/eslint-plugin-unicorn/main.yml/main?enable=pin
Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/main.yml:86: update your workflow using https://app.stepsecurity.io/secureworkflow/sindresorhus/eslint-plugin-unicorn/main.yml/main?enable=pin
Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/main.yml:87: update your workflow using https://app.stepsecurity.io/secureworkflow/sindresorhus/eslint-plugin-unicorn/main.yml/main?enable=pin
Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/main.yml:28: update your workflow using https://app.stepsecurity.io/secureworkflow/sindresorhus/eslint-plugin-unicorn/main.yml/main?enable=pin
Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/main.yml:29: update your workflow using https://app.stepsecurity.io/secureworkflow/sindresorhus/eslint-plugin-unicorn/main.yml/main?enable=pin
Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/main.yml:42: update your workflow using https://app.stepsecurity.io/secureworkflow/sindresorhus/eslint-plugin-unicorn/main.yml/main?enable=pin
Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/main.yml:43: update your workflow using https://app.stepsecurity.io/secureworkflow/sindresorhus/eslint-plugin-unicorn/main.yml/main?enable=pin
Warn: third-party GitHubAction not pinned by hash: .github/workflows/main.yml:55: update your workflow using https://app.stepsecurity.io/secureworkflow/sindresorhus/eslint-plugin-unicorn/main.yml/main?enable=pin
Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/smoke-test.yml:12: update your workflow using https://app.stepsecurity.io/secureworkflow/sindresorhus/eslint-plugin-unicorn/smoke-test.yml/main?enable=pin
Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/smoke-test.yml:13: update your workflow using https://app.stepsecurity.io/secureworkflow/sindresorhus/eslint-plugin-unicorn/smoke-test.yml/main?enable=pin
Warn: third-party GitHubAction not pinned by hash: .github/workflows/smoke-test.yml:15: update your workflow using https://app.stepsecurity.io/secureworkflow/sindresorhus/eslint-plugin-unicorn/smoke-test.yml/main?enable=pin
Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/title-formatter.yml:16: update your workflow using https://app.stepsecurity.io/secureworkflow/sindresorhus/eslint-plugin-unicorn/title-formatter.yml/main?enable=pin
Warn: third-party GitHubAction not pinned by hash: .github/workflows/title-formatter.yml:18: update your workflow using https://app.stepsecurity.io/secureworkflow/sindresorhus/eslint-plugin-unicorn/title-formatter.yml/main?enable=pin
Warn: npmCommand not pinned by hash: .github/workflows/main.yml:33
Warn: npmCommand not pinned by hash: .github/workflows/main.yml:48
Warn: npmCommand not pinned by hash: .github/workflows/main.yml:66
Warn: npmCommand not pinned by hash: .github/workflows/main.yml:89
Warn: npmCommand not pinned by hash: .github/workflows/smoke-test.yml:15
Info: 0 out of 11 GitHub-owned GitHubAction dependencies pinned
Info: 0 out of 3 third-party GitHubAction dependencies pinned
Info: 0 out of 5 npmCommand dependencies pinned

0

Fuzzing

Determines if the project uses fuzzing.

0

Branch-Protection

Determines if the default and release branches are protected with GitHub's branch protection settings.

0

SAST

Determines if the project uses static code analysis.

Score

5.7

/10

Last Scanned on 2024-11-18

The Open Source Security Foundation is a cross-industry collaboration to improve the security of open source software (OSS). The Scorecard provides security health metrics for open source projects.

Learn More

Other packages similar to eslint-plugin-unicorn

eslint-plugin-unicorn

Installations

Score

Pull Requests

4

1,305

125

1,176

Issues

374

1,193

819

Releases

Contributors

Developer

sindresorhus

Developer Guide

CommonJS

>=18.18

Yes

18.20.4

10.6.0

Statistics

Bundle Size

1.34 MB

269.99 kB

Languages

Total Downloads

332,999,007

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Dependencies

Peer Dependencies

Dev Dependencies

eslint-plugin-unicorn

Install

Usage (eslint.config.js)

ES Module (Recommended)

CommonJS

Usage (legacy: .eslintrc.* or package.json)

Rules

Deprecated Rules

Preset configs (eslint.config.js)

Recommended config

ES Module (Recommended)

CommonJS

All config

ES Module (Recommended)

CommonJS

Legacy preset configs (.eslintrc.* or package.json)

Recommended legacy config

All legacy config

Maintainers

Former

10

10

10

10

10

10

7

0

0

0

0

0

0

5.7

/10

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Usage (`eslint.config.js`)

Usage (legacy: `.eslintrc.*` or `package.json`)

Preset configs (`eslint.config.js`)

Legacy preset configs (`.eslintrc.*` or `package.json`)