Unicorn

223 rules eslint-plugin-unicorn@76.0.0

Complete effective rule inventory.

Docs

unicorn/no-duplicate-set-values
Disallow duplicate values in Set constructor array literals.

: error in All Unicorn contexts

No autofix
unicorn/no-empty-file
Disallow empty files.

: error in All Unicorn contexts

No autofix
unicorn/no-error-property-assignment
Disallow assigning to built-in error properties.

: error in All Unicorn contexts

No autofix
unicorn/no-exports-in-scripts
Disallow exports in scripts.

: error in All Unicorn contexts

No autofix
unicorn/no-for-loop
Do not use a for loop that can be replaced with a for-of loop.

: error in All Unicorn contexts

Autofix available
unicorn/no-global-object-property-assignment
Disallow assigning properties on the global object.

: error in All Unicorn contexts

No autofix
unicorn/no-immediate-mutation
Disallow immediate mutation after variable assignment.

: error in All Unicorn contexts

Autofix available; suggestions available
unicorn/no-impossible-length-comparison
Disallow impossible comparisons against .length or .size.

: error in All Unicorn contexts

No autofix
unicorn/no-incorrect-query-selector
Disallow incorrect querySelector() and querySelectorAll() usage.

: error in All Unicorn contexts

Autofix available
unicorn/no-incorrect-template-string-interpolation
Disallow incorrect template literal interpolation syntax.

: error in All Unicorn contexts

No autofix; suggestions available
unicorn/no-instanceof-builtins
Disallow instanceof with built-in objects

: error in All Unicorn contexts

Autofix available; suggestions available
unicorn/no-invalid-argument-count
Disallow calling functions and constructors with an invalid number of arguments.

: error in All Unicorn contexts

No autofix
unicorn/no-invalid-character-comparison
Disallow comparing a single character from a string to a multi-character string.

: error in All Unicorn contexts

No autofix
unicorn/no-invalid-fetch-options
Disallow invalid options in fetch() and new Request().

: error in All Unicorn contexts

No autofix
unicorn/no-invalid-file-input-accept
Disallow invalid accept values on file inputs.

: error in All Unicorn contexts

Autofix available
unicorn/no-invalid-remove-event-listener
Prevent calling EventTarget#removeEventListener() with the result of an expression.

: error in All Unicorn contexts

No autofix
unicorn/no-invalid-well-known-symbol-methods
Disallow invalid implementations of well-known symbol methods.

: error in All Unicorn contexts

Autofix available; suggestions available
unicorn/no-late-current-target-access
Disallow accessing event.currentTarget after the synchronous event dispatch has finished.

: error in All Unicorn contexts

No autofix
unicorn/no-late-event-control
Disallow event-control method calls after the synchronous event dispatch has finished.

: error in All Unicorn contexts

No autofix
unicorn/no-loop-iterable-mutation
Disallow mutating a loop iterable during iteration.

: error in All Unicorn contexts

No autofix
unicorn/no-magic-array-flat-depth
Disallow a magic number as the depth argument in Array#flat(…).

: error in All Unicorn contexts

No autofix
unicorn/no-mismatched-map-key
Disallow checking a Map key before accessing a different key.

: error in All Unicorn contexts

No autofix
unicorn/no-misrefactored-assignment
Disallow misrefactored compound assignments where the target is duplicated in the right-hand side.

: error in All Unicorn contexts

No autofix; suggestions available
unicorn/no-missing-local-resource
Disallow references to missing local resources.

: error in All Unicorn contexts

Autofix available
unicorn/no-multiple-promise-resolver-calls
Disallow calling Promise executor resolver functions more than once on the same execution path.

: error in All Unicorn contexts

No autofix
unicorn/no-negation-in-equality-check
Disallow negated expression in equality check.

: error in All Unicorn contexts

No autofix; suggestions available
unicorn/no-new-array
Disallow new Array().

: error in All Unicorn contexts

Autofix available; suggestions available
unicorn/no-new-buffer
Enforce the use of Buffer.from() and Buffer.alloc() instead of the deprecated new Buffer().

: error in All Unicorn contexts

Autofix available; suggestions available
unicorn/no-nonstandard-builtin-properties
Disallow non-standard properties on built-in objects.

: error in All Unicorn contexts

No autofix
unicorn/no-object-as-default-parameter
Disallow the use of objects as default parameters.

: error in All Unicorn contexts

No autofix
unicorn/no-object-methods-with-collections
Disallow Object methods with Map or Set.

: error in All Unicorn contexts

No autofix; suggestions available
unicorn/no-optional-chaining-on-undeclared-variable
Disallow optional chaining on undeclared variables.

: error in All Unicorn contexts

No autofix
unicorn/no-redundant-comparison
Disallow comparisons made redundant by an equality check in the same logical AND.

: error in All Unicorn contexts

Autofix available; suggestions available
unicorn/no-return-array-push
Disallow using the return value of Array#push() and Array#unshift().

: error in All Unicorn contexts

No autofix; suggestions available
unicorn/no-selector-as-dom-name
Disallow selector syntax in DOM names.

: error in All Unicorn contexts

Autofix available
unicorn/no-shorthand-property-overrides
Disallow shorthand properties that override related longhand properties.

: error in All Unicorn contexts

No autofix
unicorn/no-single-promise-in-promise-methods
Disallow passing single-element arrays to Promise methods.

: error in All Unicorn contexts

Autofix available; suggestions available
unicorn/no-subtraction-comparison
Prefer comparing values directly over subtracting and comparing to 0.

: error in All Unicorn contexts

Autofix available; suggestions available
unicorn/no-this-assignment
Disallow assigning this to a variable.

: error in All Unicorn contexts

No autofix
unicorn/no-this-outside-of-class
Disallow this outside of classes.

: error in All Unicorn contexts

No autofix

Rules