generated-rules.md

Rules

The progress of all rule implementations is tracked here.

• Total number of rules: 502
• Rules turned on by default: 123

Legend for 'Fixable?' column:

• 🛠️: an auto-fix is available for this rule
• 💡: a suggestion is available for this rule
• ⚠️🛠️: a dangerous auto-fix is available for this rule
• ⚠️💡: a dangerous suggestion is available for this rule
• 🚧: an auto-fix or suggestion is possible, but currently not implemented

Correctness (174):

Code that is outright wrong or useless.

Rule name	Source	Default	Fixable?
for-direction	eslint	✅	⚠️🛠️️
no-async-promise-executor	eslint	✅
no-caller	eslint	✅
no-class-assign	eslint	✅
no-compare-neg-zero	eslint	✅	🛠️💡
no-cond-assign	eslint	✅
no-const-assign	eslint	✅
no-constant-binary-expression	eslint	✅
no-constant-condition	eslint	✅
no-control-regex	eslint	✅
no-debugger	eslint	✅	🛠️
no-delete-var	eslint	✅
no-dupe-class-members	eslint	✅
no-dupe-else-if	eslint	✅
no-dupe-keys	eslint	✅
no-duplicate-case	eslint	✅
no-empty-character-class	eslint	✅
no-empty-pattern	eslint	✅
no-empty-static-block	eslint	✅	💡
no-eval	eslint	✅
no-ex-assign	eslint	✅
no-extra-boolean-cast	eslint	✅	🚧
no-func-assign	eslint	✅
no-global-assign	eslint	✅
no-import-assign	eslint	✅
no-invalid-regexp	eslint	✅
no-irregular-whitespace	eslint	✅
no-loss-of-precision	eslint	✅
no-new-native-nonconstructor	eslint	✅
no-nonoctal-decimal-escape	eslint	✅	🚧
no-obj-calls	eslint	✅
no-self-assign	eslint	✅
no-setter-return	eslint	✅
no-shadow-restricted-names	eslint	✅
no-sparse-arrays	eslint	✅
no-this-before-super	eslint	✅
no-unsafe-finally	eslint	✅
no-unsafe-negation	eslint	✅	🛠️
no-unsafe-optional-chaining	eslint	✅
no-unused-labels	eslint	✅	🛠️
no-unused-private-class-members	eslint	✅
no-unused-vars	eslint	✅	⚠️💡
no-useless-catch	eslint	✅
no-useless-escape	eslint	✅	🛠️
no-useless-rename	eslint	✅
no-with	eslint	✅
require-yield	eslint	✅
use-isnan	eslint	✅	🛠️
valid-typeof	eslint	✅	🛠️
default	import	✅
namespace	import	✅
expect-expect	jest	✅
no-conditional-expect	jest	✅
no-disabled-tests	jest	✅
no-export	jest	✅
no-focused-tests	jest	✅	🛠️
no-standalone-expect	jest	✅
require-to-throw-message	jest	✅
valid-describe-callback	jest	✅
valid-expect	jest	✅
valid-title	jest	✅	🛠️
check-property-names	jsdoc	✅
check-tag-names	jsdoc	✅
implements-on-classes	jsdoc	✅
no-defaults	jsdoc	✅
require-property	jsdoc	✅
require-property-description	jsdoc	✅
require-property-name	jsdoc	✅
require-property-type	jsdoc	✅
require-yields	jsdoc	✅
alt-text	jsx_a11y	✅
anchor-has-content	jsx_a11y	✅	💡
anchor-is-valid	jsx_a11y	✅
aria-activedescendant-has-tabindex	jsx_a11y	✅
aria-props	jsx_a11y	✅	🛠️
aria-role	jsx_a11y	✅
aria-unsupported-elements	jsx_a11y	✅	🛠️
autocomplete-valid	jsx_a11y	✅
click-events-have-key-events	jsx_a11y	✅
heading-has-content	jsx_a11y	✅
html-has-lang	jsx_a11y	✅
iframe-has-title	jsx_a11y	✅
img-redundant-alt	jsx_a11y	✅
label-has-associated-control	jsx_a11y	✅
lang	jsx_a11y	✅
media-has-caption	jsx_a11y	✅
mouse-events-have-key-events	jsx_a11y	✅
no-access-key	jsx_a11y	✅	💡
no-aria-hidden-on-focusable	jsx_a11y	✅	🛠️
no-autofocus	jsx_a11y	✅	🛠️
no-distracting-elements	jsx_a11y	✅
no-noninteractive-tabindex	jsx_a11y	✅
no-redundant-roles	jsx_a11y	✅	🛠️
prefer-tag-over-role	jsx_a11y	✅
role-has-required-aria-props	jsx_a11y	✅
role-supports-aria-props	jsx_a11y	✅
scope	jsx_a11y	✅	🛠️
tabindex-no-positive	jsx_a11y	✅	🚧
google-font-display	nextjs	✅
google-font-preconnect	nextjs	✅
inline-script-id	nextjs	✅
next-script-for-ga	nextjs	✅
no-assign-module-variable	nextjs	✅
no-async-client-component	nextjs	✅
no-before-interactive-script-outside-document	nextjs	✅
no-css-tags	nextjs	✅
no-document-import-in-page	nextjs	✅
no-duplicate-head	nextjs	✅
no-head-element	nextjs	✅
no-head-import-in-document	nextjs	✅
no-img-element	nextjs	✅
no-page-custom-font	nextjs	✅
no-script-component-in-head	nextjs	✅
no-styled-jsx-in-document	nextjs	✅
no-sync-scripts	nextjs	✅
no-title-in-document-head	nextjs	✅
no-typos	nextjs	✅	🚧
no-unwanted-polyfillio	nextjs	✅
bad-array-method-on-arguments	oxc	✅
bad-char-at-comparison	oxc	✅
bad-comparison-sequence	oxc	✅
bad-min-max-func	oxc	✅
bad-object-literal-comparison	oxc	✅
bad-replace-all-arg	oxc	✅
const-comparisons	oxc	✅
double-comparisons	oxc	✅	🛠️
erasing-op	oxc	✅	💡
missing-throw	oxc	✅	💡
number-arg-out-of-range	oxc	✅
only-used-in-recursion	oxc	✅	⚠️🛠️️
uninvoked-array-callback	oxc	✅
no-callback-in-promise	promise	✅
no-new-statics	promise	✅	🛠️
valid-params	promise	✅
jsx-key	react	✅
jsx-no-duplicate-props	react	✅
jsx-no-target-blank	react	✅
jsx-no-undef	react	✅
jsx-props-no-spread-multi	react	✅	🛠️
no-children-prop	react	✅
no-danger-with-children	react	✅
no-direct-mutation-state	react	✅
no-find-dom-node	react	✅
no-is-mounted	react	✅
no-render-return-value	react	✅
no-string-refs	react	✅
void-dom-elements-no-children	react	✅
no-duplicate-enum-values	typescript	✅
no-extra-non-null-assertion	typescript	✅
no-misused-new	typescript	✅
no-non-null-asserted-optional-chain	typescript	✅	🚧
no-this-alias	typescript	✅
no-unnecessary-parameter-property-assignment	typescript	✅	🚧
no-unsafe-declaration-merging	typescript	✅
no-useless-empty-export	typescript	✅	🛠️
no-wrapper-object-types	typescript	✅	🛠️
prefer-as-const	typescript	✅	🛠️
triple-slash-reference	typescript	✅
no-await-in-promise-methods	unicorn	✅
no-document-cookie	unicorn	✅
no-empty-file	unicorn	✅
no-invalid-fetch-options	unicorn	✅
no-invalid-remove-event-listener	unicorn	✅
no-new-array	unicorn	✅	🚧
no-single-promise-in-promise-methods	unicorn	✅	🛠️
no-thenable	unicorn	✅
no-unnecessary-await	unicorn	✅	🛠️
no-useless-fallback-in-spread	unicorn	✅	🛠️
no-useless-length-check	unicorn	✅	🚧
no-useless-spread	unicorn	✅	⚠️🛠️️
prefer-set-size	unicorn	✅	🛠️
prefer-string-starts-ends-with	unicorn	✅	🛠️
no-conditional-tests	vitest	✅
require-local-test-context-for-concurrent-snapshots	vitest	✅	🚧

Perf (9):

Code that can be written to run faster.

Rule name	Source	Default	Fixable?
no-await-in-loop	eslint
no-useless-call	eslint
no-accumulating-spread	oxc
no-array-index-key	react
jsx-no-jsx-as-prop	react_perf
jsx-no-new-array-as-prop	react_perf
jsx-no-new-function-as-prop	react_perf
jsx-no-new-object-as-prop	react_perf
prefer-set-has	unicorn		⚠️🛠️️

Restriction (64):

Lints which prevent the use of language and library features. Must not be enabled as a whole, should be considered on a case-by-case basis before enabling.

Rule name	Source	Default	Fixable?
default-case	eslint
no-alert	eslint
no-bitwise	eslint
no-console	eslint		💡
no-div-regex	eslint		🛠️
no-empty	eslint		💡
no-empty-function	eslint
no-eq-null	eslint		⚠️🛠️️
no-iterator	eslint		💡
no-plusplus	eslint		💡
no-proto	eslint		🚧
no-regex-spaces	eslint		🚧
no-restricted-globals	eslint
no-restricted-imports	eslint
no-undefined	eslint
no-unused-expressions	eslint
no-var	eslint		🛠️
no-void	eslint		🚧
unicode-bom	eslint		🛠️
no-amd	import
no-commonjs	import
no-cycle	import
no-default-export	import
no-dynamic-require	import
no-webpack-loader-syntax	import
unambiguous	import
check-access	jsdoc
empty-tags	jsdoc
anchor-ambiguous-text	jsx_a11y
no-new-require	node
bad-bitwise-operator	oxc
no-async-await	oxc
no-barrel-file	oxc
no-const-enum	oxc		🛠️
no-optional-chaining	oxc
no-rest-spread-properties	oxc
catch-or-return	promise
spec-only	promise
button-has-type	react
jsx-filename-extension	react		🚧
no-danger	react
no-unknown-property	react		🚧
explicit-function-return-type	typescript
no-dynamic-delete	typescript
no-empty-object-type	typescript
no-explicit-any	typescript		🛠️
no-import-type-side-effects	typescript		🛠️
no-namespace	typescript
no-non-null-asserted-nullish-coalescing	typescript
no-non-null-assertion	typescript
no-require-imports	typescript		🚧
no-var-requires	typescript
prefer-literal-enum-member	typescript
no-abusive-eslint-disable	unicorn
no-anonymous-default-export	unicorn
no-array-for-each	unicorn		🚧
no-array-reduce	unicorn
no-length-as-slice-end	unicorn		🛠️
no-magic-array-flat-depth	unicorn
no-nested-ternary	unicorn		🛠️
no-process-exit	unicorn		🚧
prefer-modern-math-apis	unicorn		🚧
prefer-node-protocol	unicorn		🛠️
prefer-number-properties	unicorn		🚧

Suspicious (29):

code that is most likely wrong or useless.

Rule name	Source	Default	Fixable?
no-extend-native	eslint
no-new	eslint
no-unexpected-multiline	eslint		⚠️🛠️️
no-unneeded-ternary	eslint		🚧
no-useless-concat	eslint
no-useless-constructor	eslint		🛠️
no-absolute-path	import		🚧
no-duplicates	import
no-empty-named-blocks	import		🛠️
no-named-as-default	import
no-named-as-default-member	import
no-self-import	import
no-commented-out-tests	jest
approx-constant	oxc
misrefactored-assign-op	oxc		🚧
no-async-endpoint-handlers	oxc
no-promise-in-callback	promise
iframe-missing-sandbox	react		🚧
jsx-no-comment-textnodes	react
jsx-no-script-url	react		🚧
no-namespace	react
react-in-jsx-scope	react
style-prop-object	react
no-confusing-non-null-assertion	typescript		🚧
no-extraneous-class	typescript
no-unnecessary-type-constraint	typescript
consistent-function-scoping	unicorn		🚧
prefer-add-event-listener	unicorn		🚧
require-post-message-target-origin	unicorn		🛠️

Pedantic (79):

Lints which are rather strict or have occasional false positives.

Rule name	Source	Default	Fixable?
array-callback-return	eslint
eqeqeq	eslint		🛠️
max-classes-per-file	eslint
max-depth	eslint
max-lines	eslint
max-lines-per-function	eslint
max-nested-callbacks	eslint
no-array-constructor	eslint		🚧
no-case-declarations	eslint
no-constructor-return	eslint
no-else-return	eslint		🛠️
no-fallthrough	eslint		🚧
no-inner-declarations	eslint
no-lonely-if	eslint		🚧
no-negated-condition	eslint		🚧
no-new-wrappers	eslint		🚧
no-object-constructor	eslint		🚧
no-prototype-builtins	eslint
no-redeclare	eslint
no-self-compare	eslint
no-throw-literal	eslint		💡
radix	eslint
require-await	eslint
sort-vars	eslint		🚧
symbol-description	eslint
max-dependencies	import
no-conditional-in-test	jest
require-param	jsdoc
require-param-description	jsdoc
require-param-name	jsdoc
require-param-type	jsdoc
require-returns	jsdoc
require-returns-description	jsdoc
require-returns-type	jsdoc
checked-requires-onchange-or-readonly	react
jsx-no-useless-fragment	react
no-unescaped-entities	react
rules-of-hooks	react
ban-ts-comment	typescript		🛠️
ban-types	typescript		🚧
no-unsafe-function-type	typescript
prefer-enum-initializers	typescript		🚧
prefer-ts-expect-error	typescript		🛠️
consistent-empty-array-spread	unicorn		💡
escape-case	unicorn		🛠️
explicit-length-check	unicorn		🛠️
new-for-builtins	unicorn
no-hex-escape	unicorn		🛠️
no-instanceof-array	unicorn		🛠️
no-lonely-if	unicorn
no-negation-in-equality-check	unicorn		🚧
no-new-buffer	unicorn		🚧
no-object-as-default-parameter	unicorn
no-static-only-class	unicorn		🚧
no-this-assignment	unicorn
no-typeof-undefined	unicorn		🚧
no-unreadable-iife	unicorn
no-useless-promise-resolve-reject	unicorn		🛠️
no-useless-switch-case	unicorn		🚧
no-useless-undefined	unicorn		🛠️
prefer-array-flat	unicorn		🛠️
prefer-array-some	unicorn		🛠️
prefer-blob-reading-methods	unicorn		🚧
prefer-code-point	unicorn		🛠️
prefer-date-now	unicorn		🛠️
prefer-dom-node-append	unicorn		🛠️
prefer-dom-node-dataset	unicorn		🚧
prefer-dom-node-remove	unicorn
prefer-event-target	unicorn
prefer-math-min-max	unicorn		🛠️
prefer-math-trunc	unicorn		🚧
prefer-native-coercion-functions	unicorn		🚧
prefer-prototype-methods	unicorn		🛠️
prefer-query-selector	unicorn		🛠️
prefer-regexp-test	unicorn		🛠️
prefer-string-replace-all	unicorn		🛠️
prefer-string-slice	unicorn		🛠️
prefer-type-error	unicorn		🛠️
require-number-to-fixed-digits-argument	unicorn		🛠️

Style (137):

Code that should be written in a more idiomatic way.

Rule name	Source	Default	Fixable?
curly	eslint		🛠️
default-case-last	eslint
default-param-last	eslint
func-names	eslint		🛠️💡
func-style	eslint		🚧
grouped-accessor-pairs	eslint		🚧
guard-for-in	eslint
init-declarations	eslint
max-params	eslint
new-cap	eslint		🚧
no-continue	eslint
no-duplicate-imports	eslint		🚧
no-extra-label	eslint		🛠️
no-label-var	eslint
no-labels	eslint
no-lone-blocks	eslint
no-magic-numbers	eslint		🚧
no-multi-assign	eslint
no-multi-str	eslint
no-nested-ternary	eslint
no-new-func	eslint
no-return-assign	eslint		🚧
no-script-url	eslint
no-template-curly-in-string	eslint		⚠️🛠️️
no-ternary	eslint
operator-assignment	eslint		⚠️🛠️️
prefer-exponentiation-operator	eslint
prefer-numeric-literals	eslint		🛠️
prefer-object-has-own	eslint		🛠️
prefer-object-spread	eslint		🛠️
prefer-promise-reject-errors	eslint
prefer-rest-params	eslint
prefer-spread	eslint
sort-imports	eslint		🛠️
sort-keys	eslint		🚧
vars-on-top	eslint
yoda	eslint		🛠️
exports-last	import
first	import		🚧
no-anonymous-default-export	import
no-mutable-exports	import
no-named-default	import
no-namespace	import		🚧
consistent-test-it	jest		🛠️
max-expects	jest
max-nested-describe	jest
no-alias-methods	jest		🛠️
no-confusing-set-timeout	jest
no-deprecated-functions	jest		🛠️
no-done-callback	jest
no-duplicate-hooks	jest
no-hooks	jest
no-identical-title	jest
no-interpolation-in-snapshots	jest
no-jasmine-globals	jest		🛠️
no-large-snapshots	jest
no-mocks-import	jest
no-restricted-jest-methods	jest
no-restricted-matchers	jest
no-test-prefixes	jest		🛠️
no-test-return-statement	jest
no-untyped-mock-factory	jest		🛠️
prefer-called-with	jest
prefer-comparison-matcher	jest		🛠️
prefer-each	jest
prefer-equality-matcher	jest
prefer-expect-resolves	jest		🛠️
prefer-hooks-in-order	jest
prefer-hooks-on-top	jest
prefer-jest-mocked	jest		🛠️
prefer-lowercase-title	jest		🛠️
prefer-mock-promise-shorthand	jest		🛠️
prefer-spy-on	jest		🛠️
prefer-strict-equal	jest		🛠️
prefer-to-be	jest		🛠️
prefer-to-contain	jest
prefer-to-have-length	jest		🛠️
prefer-todo	jest		🛠️
require-hook	jest
require-top-level-describe	jest
no-exports-assign	node		🛠️
avoid-new	promise
no-nesting	promise		🚧
no-return-wrap	promise		🚧
param-names	promise
prefer-await-to-callbacks	promise
prefer-await-to-then	promise
prefer-catch	promise		🚧
jsx-boolean-value	react		🛠️
jsx-curly-brace-presence	react
no-set-state	react
prefer-es6-class	react
self-closing-comp	react		🚧
adjacent-overload-signatures	typescript
array-type	typescript		🛠️
ban-tslint-comment	typescript		🛠️
consistent-generic-constructors	typescript		🚧
consistent-indexed-object-style	typescript		🛠️
consistent-type-definitions	typescript		🛠️
no-empty-interface	typescript
no-inferrable-types	typescript		🚧
prefer-for-of	typescript		🚧
prefer-function-type	typescript		🛠️
prefer-namespace-keyword	typescript		🛠️
catch-error-name	unicorn		🛠️
consistent-date-clone	unicorn		🛠️
consistent-existence-index-check	unicorn		🛠️
empty-brace-spaces	unicorn		🛠️
error-message	unicorn
filename-case	unicorn
no-await-expression-member	unicorn		🚧
no-console-spaces	unicorn		🛠️
no-null	unicorn		🛠️
no-unreadable-array-destructuring	unicorn
no-zero-fractions	unicorn		🛠️
number-literal-case	unicorn		🛠️
numeric-separators-style	unicorn		🛠️
prefer-array-flat-map	unicorn		🛠️
prefer-dom-node-text-content	unicorn		🛠️
prefer-includes	unicorn		🚧
prefer-logical-operator-over-ternary	unicorn		🚧
prefer-modern-dom-apis	unicorn		🚧
prefer-negative-index	unicorn		🛠️
prefer-optional-catch-binding	unicorn		🛠️
prefer-reflect-apply	unicorn
prefer-spread	unicorn		🛠️
prefer-string-raw	unicorn		🛠️
prefer-string-trim-start-end	unicorn		🛠️
prefer-structured-clone	unicorn		🚧
require-array-join-separator	unicorn		🛠️
switch-case-braces	unicorn		🛠️
text-encoding-identifier-case	unicorn		🛠️
throw-new-error	unicorn		🛠️
no-import-node-test	vitest		🛠️
prefer-to-be-falsy	vitest		🛠️
prefer-to-be-object	vitest		🛠️
prefer-to-be-truthy	vitest		🛠️

Nursery (10):

New lints that are still under development.

Rule name	Source	Default	Fixable?
getter-return	eslint
no-undef	eslint
no-unreachable	eslint
export	import
named	import
no-map-spread	oxc		🛠️💡
no-return-in-finally	promise
exhaustive-deps	react
require-render-return	react
consistent-type-imports	typescript		🛠️