xojs/eslint-config-xo v0.53.0

on GitHub

Breaking

• Require TypeScript 6

Prettier integration

A new prettier option lets you combine the rules with Prettier:

export default defineConfig([
	...eslintConfigXo({prettier: true}),
]);

• true — Runs Prettier as an ESLint rule using XO's Prettier style, and disables the stylistic rules that would conflict with it. Requires prettier to be installed.
• 'compat' — Only disables the stylistic rules that conflict with Prettier, for when you run Prettier separately (for example, from your editor).

Anything XO does not configure (like printWidth or Prettier plugins) still respects your .prettierrc, but XO's own style settings take precedence. prettier is an optional peer dependency.

CSS linting

.css files are now linted out of the box via @eslint/css: duplicate imports, empty blocks, invalid at-rules, unmatchable selectors, invalid named grid areas, and more.

New rules

• unicorn/better-dom-traversing
• unicorn/class-reference-in-static-methods
• unicorn/consistent-class-member-order
• unicorn/consistent-compound-words
• unicorn/consistent-export-decorator-position
• unicorn/consistent-json-file-read
• unicorn/consistent-optional-chaining
• unicorn/explicit-timer-delay
• unicorn/logical-assignment-operators
• unicorn/max-nested-calls
• unicorn/no-array-fill-with-reference-type
• unicorn/no-array-from-fill
• unicorn/no-array-splice
• unicorn/no-blob-to-file
• unicorn/no-break-in-nested-loop
• unicorn/no-canvas-to-image
• unicorn/no-computed-property-existence-check
• unicorn/no-confusing-array-splice
• unicorn/no-confusing-array-with
• unicorn/no-declarations-before-early-exit
• unicorn/no-duplicate-loops
• unicorn/no-duplicate-set-values
• unicorn/no-error-property-assignment
• unicorn/no-exports-in-scripts
• unicorn/no-global-object-property-assignment
• unicorn/no-incorrect-query-selector
• unicorn/no-incorrect-template-string-interpolation
• unicorn/no-late-current-target-access
• unicorn/no-mismatched-map-key
• unicorn/no-negated-array-predicate
• unicorn/no-negated-comparison
• unicorn/no-non-function-verb-prefix
• unicorn/no-object-methods-with-collections
• unicorn/no-optional-chaining-on-undeclared-variable
• unicorn/no-redundant-comparison
• unicorn/no-return-array-push
• unicorn/no-subtraction-comparison
• unicorn/no-top-level-side-effects
• unicorn/no-uncalled-method
• unicorn/no-undeclared-class-members
• unicorn/no-unnecessary-global-this
• unicorn/no-unnecessary-nested-ternary
• unicorn/no-unnecessary-splice
• unicorn/no-unreadable-object-destructuring
• unicorn/no-unsafe-buffer-conversion
• unicorn/no-unsafe-property-key
• unicorn/no-unsafe-string-replacement
• unicorn/no-unused-array-method-return
• unicorn/no-useless-boolean-cast
• unicorn/no-useless-coercion
• unicorn/no-useless-concat
• unicorn/no-useless-continue
• unicorn/no-useless-else
• unicorn/no-useless-override
• unicorn/no-useless-recursion
• unicorn/no-useless-template-literals
• unicorn/operator-assignment
• unicorn/prefer-add-event-listener-options
• unicorn/prefer-array-from-map
• unicorn/prefer-array-last-methods
• unicorn/prefer-array-slice
• unicorn/prefer-direct-iteration
• unicorn/prefer-early-return
• unicorn/prefer-else-if
• unicorn/prefer-get-or-insert-computed
• unicorn/prefer-global-number-constants
• unicorn/prefer-has-check
• unicorn/prefer-https
• unicorn/prefer-identifier-import-export-specifiers
• unicorn/prefer-includes-over-repeated-comparisons
• unicorn/prefer-iterable-in-constructor
• unicorn/prefer-iterator-to-array
• unicorn/prefer-iterator-to-array-at-end
• unicorn/prefer-location-assign
• unicorn/prefer-map-from-entries
• unicorn/prefer-math-abs
• unicorn/prefer-minimal-ternary
• unicorn/prefer-number-coercion
• unicorn/prefer-number-is-safe-integer
• unicorn/prefer-object-define-properties
• unicorn/prefer-object-destructuring-defaults
• unicorn/prefer-object-iterable-methods
• unicorn/prefer-path2d
• unicorn/prefer-private-class-fields
• unicorn/prefer-queue-microtask
• unicorn/prefer-scoped-selector
• unicorn/prefer-simple-sort-comparator
• unicorn/prefer-single-array-predicate
• unicorn/prefer-single-object-destructuring
• unicorn/prefer-smaller-scope
• unicorn/prefer-split-limit
• unicorn/prefer-string-match-all
• unicorn/prefer-string-pad-start-end
• unicorn/prefer-string-repeat
• unicorn/prefer-type-literal-last
• unicorn/prefer-uint8array-base64
• unicorn/prefer-unicode-code-point-escapes
• unicorn/prefer-url-href
• unicorn/require-array-sort-compare
• unicorn/require-css-escape
• unicorn/require-passive-events
• unicorn/require-proxy-trap-boolean-return
• @typescript-eslint/no-unnecessary-type-conversion

v0.52.0...v0.53.0