Rules

JavaScript

Rule semantics and descriptions taken from ESLint. See individual rule docs for direct references.

noArguments

disallow the use of `arguments`

noAsyncPromiseExecutor

disallow using an async function as a Promise executor

noCatchAssign

disallow reassigning exceptions in `catch` clauses

noCommaOperator

disallow comma operators

noCompareNegZero

disallow comparing against `-0`

noCondAssign

disallow assignment operators in conditional expressions

noDebugger

disallow the use of `debugger`

noDelete

disallow the use of the `delete` operator

noDeleteVars

disallow deleting variables

noDoubleEquals

require the use of `===` and `!==`

noDupeArgs

disallow duplicate arguments in `function` definitions

noDuplicateCase

disallow duplicate case labels

noDuplicateImportSource

disallow several import statements for a module

noDuplicateKeys

disallow duplicate keys in object literals

noEmptyBlocks

disallow empty block statements

noExtraBooleanCast

disallow unnecessary boolean casts

noFunctionAssign

disallow reassigning `function` declarations

noGetterReturn

enforce `return` statements in getters

noImportAssign

disallow assigning to imported bindings

noLabelVar

disallow labels that share a name with a variable

noNegationElse

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noNestedTernary

disallow nested ternary expressions

noRestrictedGlobals

disallow certain global variables

noSetterReturn

disallow returning values from setters

noShadowRestrictedNames

disallow identifiers from shadowing restricted names

noShoutyConstants

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noSingleCharRegexAlternatives

disallow the use of single character alternations in regular expressions

noSparseArray

disallow sparse arrays

noTemplateCurlyInString

disallow template literal placeholder syntax in regular strings

noUndeclaredVariables

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noUnnecessaryContinue

disallow unnecessary `continue` statements inside loops

noUnsafeFinally

disallow control flow statements in `finally` blocks

noUnsafeNegation

disallow negating the left operand of relational operators

noUnusedTemplateLiteral

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noUnusedVariables

disallow unused variables

noVar

require `let` or `const` instead of `var`

preferOptionalChaining

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useBlockStatements

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useCamelCase

enforce camelcase naming convention

useDefaultExportBasename

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useDefaultImportBasename

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useFunctionDeclarations

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useSingleCaseStatement

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useSingleVarDeclarator

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useSortedSpecifiers

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useTemplate

require template literals instead of string concatenation

useWhile

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TypeScript

noExplicitAny

it bans the use of `any`

preferShorthandArrayType

promotes the use of `[]` over `Array<>`

useInterfaces

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JSX Accessibility

Rule semantics and descriptions taken from eslint-plugin-jsx-a11y. See individual rule docs for direct references.

noAccessKey

enforce that the `accessKey` prop is not used on any element to avoid complications with keyboard commands used by a screenreader

noAriaUnsupportedElements

enforce that elements that do not support ARIA roles, states, and properties do not have those attributes

noAutofocus

discourage the usage of `autoFocus`

noDistractingElements

enforce distracting elements are not used

noHeaderScope

enforce scope prop is only used on `th` elements

noNoninteractiveElementToInteractiveRole

non-interactive elements should not be assigned interactive roles

noNoninteractiveTabindex

"`tabIndex` should only be declared on interactive elements"

noOnChange

discourage the usage of `onChange`

noPositiveTabindex

enforce tabIndex value is not greater than zero

noRedundantAlt

enforce `img` alt prop does not contain the word "image", "picture", or "photo"

noRedundantRoles

enforce explicit role property is not the same as implicit/default role property on element

noSvgWithoutTitle

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noTargetBlank

Prevent usage of unsafe `target="_blank"`

useAltText

enforce alternative text

useAnchorContent

enforce that anchors have content and that the content is accessible to screen readers

useAriaProps

enforce all `aria-*` props are valid

useAriaPropsForRole

enforce that elements with ARIA roles must have all required attributes for that role

useAriaProptypes

enforce ARIA state and property values are valid

useHeadingContent

enforce heading (`h1`, `h2`, etc) elements contain accessible content

useIframeTitle

enforce `iframe` elements have a title attribute

useKeyWithClickEvents

enforce a clickable non-interactive element has at least one keyboard event listener.

useKeyWithMouseEvents

enforce that `onMouseOver`/`onMouseOut` are accompanied by `onFocus`/`onBlur` for keyboard-only users

useMediaCaption

enforces that `audio` and `video` elements must have a `track` for captions

useValidAnchor

enforce all anchors are valid, navigable elements

React

Rule semantics and descriptions taken from eslint-plugin-react. See individual rule docs for direct references.