🐲 eslint-plugin-wyrm

Installation

npm install --save-dev eslint eslint-plugin-wyrm

Usage

import { defineConfig } from 'eslint/config';
import wyrm from 'eslint-plugin-wyrm';

export default defineConfig([
  // ...

  wyrm.configs.recommended,
]);

Configs

| | Name | | :-- | :----------------------- | | 🟩 | recommended | | ✅ | recommendedTypeChecked | | 🟪 | strict | | ☑️ | strictTypeChecked |

Rules

💼 Configurations enabled in.
🟩 Set in the recommended configuration.
✅ Set in the recommendedTypeChecked configuration.
🟪 Set in the strict configuration.
☑️ Set in the strictTypeChecked configuration.
🔧 Automatically fixable by the --fix CLI option.
💡 Manually fixable by editor suggestions.
💭 Requires type information.

| Name                              | Description | 💼 | 🔧 | 💡 | 💭 | | :------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | :---------------------------------------------------------------------------------------------------- | :---------- | :-- | :-- | :-- | | array-from-array | Forbid calling Array.from on arrays | ☑️ | 🔧 | | 💭 | | as-unknown-as | Forbid as unknown as | 🟪 ☑️ | | | | | await-promise-resolve | Forbid await Promise.resolve() | 🟩 ✅ 🟪 ☑️ | 🔧 | | | | boolean-coalescing | Prefer distributing boolean casts over nullish coalescing expressions | ☑️ | 🔧 | | 💭 | | comment-duplicate-leading-space | Forbid duplicate leading space in comments | 🟩 ✅ 🟪 ☑️ | 🔧 | | | | conditional-boolean | Forbid if/else branches where the only difference is a boolean literal | 🟩 ✅ 🟪 ☑️ | 🔧 | | | | constant-boolean-cast | Forbid boolean casts on values with constant truthiness | ✅ ☑️ | | 💡 | 💭 | | de-morgan | Enforce using De Morgan's law to simplify negated logical expressions | 🟩 ✅ 🟪 ☑️ | 🔧 | | | | discarded-expression-statement | Forbid discarding the result of expression statements | | | | 💭 | | distribute-boolean-casts | Enforce that boolean casts are distributed over logical expressions | 🟪 ☑️ | 🔧 | | | | duplicate-destructuring | Forbid duplicate keys in object destructuring patterns | 🟩 ✅ 🟪 ☑️ | | | | | duplicate-object-spread | Forbid duplicate spread elements in object literals | 🟩 ✅ 🟪 ☑️ | 🔧 | | | | e | Forbid using e as a parameter name | 🟪 ☑️ | | 💡 | | | empty-for | Forbid using for (;;) | 🟩 ✅ 🟪 ☑️ | 🔧 | | | | enum-member | Prefer enum members to literals asserted as enum | ✅ ☑️ | 🔧 | | 💭 | | eqeq-null | Forbid using x == null when equivalent to x === null | ☑️ | 🔧 | | 💭 | | exact-string-regex | Forbid using a RegEx when string equality would suffice | 🟩 ✅ 🟪 ☑️ | | 💡 | | | export-using | Forbid exporting variables declared with using or await using | 🟩 ✅ 🟪 ☑️ | | | | | generic-constructor-with-hook | Forbid specifying the type arguments on the hook instead of on the generic class | 🟪 ☑️ | 🔧 | | | | idiomatic-cast | Enforce idiomatic ways to cast values | ☑️ | 🔧 | | 💭 | | inferable-type-predicate | Forbid inferable type predicates | ☑️ | 🔧 | | 💭 | | inner-as-const | Enforce setting as const on the outermost object/array literal only | 🟪 ☑️ | 🔧 | | | | jsx-tostring | Forbid calling .toString() inside JSX expressions containers | ☑️ | 🔧 | | 💭 | | literal-destructuring | Forbid variable declaration by destructuring object or array literals | 🟪 ☑️ | 🔧 | | | | named-export-with-side-effects | Forbid named exports in files with side effects | 🟩 ✅ 🟪 ☑️ | | | | | nested-reduce | Forbid nested reduce calls | 🟪 ☑️ | | | | | nested-try-catch | Forbid nested try/catch statements | 🟪 ☑️ | | | | | no-commented-out-comment | Forbid commented out comments | 🟩 ✅ 🟪 ☑️ | | | | | no-constant-template-expression | Disallow constant string expressions in template literals | ☑️ | | 💡 | 💭 | | no-constructed-error-cause | Forbid using Error.cause with constructed objects | 🟪 ☑️ | | | | | no-convoluted-boolean-expressions | Forbid simplifiable logical expressions with boolean types | ✅ ☑️ | 🔧 | | 💭 | | no-convoluted-logical-expressions | Forbid simplifiable logical expressions | 🟩 ✅ 🟪 ☑️ | 🔧 | | | | no-custom-url-parsing | Forbid parsing or building URLs by hand | 🟪 ☑️ | | | | | no-disallowed-warning-comments | Forbid disallowed comments like FIXME, XXX, HACK | 🟪 ☑️ | | | | | no-duplicated-return | Forbid duplicated branches with early returns | 🟩 ✅ 🟪 ☑️ | | | | | no-else-break | Forbid unnecessary else block after a break statement | 🟩 ✅ 🟪 ☑️ | 🔧 | | | | no-else-continue | Forbid unnecessary else block after a continue statement | 🟩 ✅ 🟪 ☑️ | 🔧 | | | | no-else-never | Forbid unnecessary else block after an expression that never returns | ☑️ | 🔧 | | 💭 | | no-else-return | Forbid unnecessary else block after a return statement | 🟩 ✅ 🟪 ☑️ | 🔧 | | | | no-else-throw | Forbid unnecessary else block after a throw statement | 🟩 ✅ 🟪 ☑️ | 🔧 | | | | no-empty-attribute | Forbid some empty JSX attributes | 🟪 ☑️ | | | | | no-empty-comment | Forbid empty comments | 🟪 ☑️ | | | | | no-empty-jsx-expression | Forbid empty JSX expression containers | 🟩 ✅ 🟪 ☑️ | | | | | no-empty-literal-iteration | Forbid iterating over empty literals | 🟩 ✅ 🟪 ☑️ | | | | | no-extra-false-fallback | Forbid extra ?? false in conditions and predicates | 🟪 ☑️ | | 💡 | | | no-extra-nested-boolean-cast | Forbid extra boolean casts in conditions and predicates | 🟪 ☑️ | | | | | no-first-last | Forbid confusing naming for "first" or "last" | 🟩 ✅ 🟪 ☑️ | | | | | no-float-length-check | Forbid comparing a length to a floating point number | 🟩 ✅ 🟪 ☑️ | | | | | no-huge-try-block | Forbid huge try/catch blocks | 🟪 ☑️ | | | | | no-huge-useeffect | Forbid huge useEffect functions | 🟪 ☑️ | | | | | no-if-length-for | Forbid redundant condition for positive length before a loop | 🟩 ✅ 🟪 ☑️ | 🔧 | | | | no-inline-jsdoc-tag | Forbid JSDoc tags in code comments | 🟪 ☑️ | | | | | no-invalid-date-literal | Disallow invalid date literals | 🟩 ✅ 🟪 ☑️ | | | | | no-jsx-statement | Forbid JSX expression statements | 🟩 ✅ 🟪 ☑️ | | | | | no-lax-array-type | Forbid declaring array types that are wider than the types of the actual elements | ☑️ | | 💡 | 💭 | | no-lax-return-type | Forbid declaring function return types that are wider than the types of the actual return values | ☑️ | | 💡 | 💭 | | no-mutable-literal-fill | Forbid using mutable literals to fill arrays | 🟩 ✅ 🟪 ☑️ | | | | | no-nullish-ternary | Forbid ternary conditions that can be replaced by optional chains | 🟩 ✅ 🟪 ☑️ | 🔧 | | | | no-numbered-comments | Forbid numbered comments | | | | | | no-obvious-any | Forbid using any when a stricter type can be trivially inferred | ☑️ | 🔧 | | 💭 | | no-optional-type-guard-param | Forbid optional parameters in type guards | 🟩 ✅ 🟪 ☑️ | | | | | no-out-of-order-comments | Forbid out of order numbered comments | 🟩 ✅ 🟪 ☑️ | | | | | no-possibly-nullish-equality | Forbid checking the equality of possibly nullish values | ☑️ | | | 💭 | | no-redundant-function-declaration | Forbid redundant function declarations | 🟩 ✅ 🟪 ☑️ | 🔧 | | | | no-return-to-void | Forbid returning values in void-returning callbacks | ☑️ | | | 💭 | | no-self-object-assign | Forbid using Object.assign() with the same object as both target and source | 🟩 ✅ 🟪 ☑️ | | | | | no-sloppy-length-check | Forbid sloppy collection size checks | 🟩 ✅ 🟪 ☑️ | | | | | no-suspicious-jsx-semicolon | Forbid suspicious semicolons in JSX | 🟩 ✅ 🟪 ☑️ | | | | | no-ternary-return | Disallow ternary conditions in return statements | 🟪 ☑️ | 🔧 | | | | no-type-guard | Forbid type guards | | | | | | no-unassigned-todo | Forbid unassigned TODO comments | 🟪 ☑️ | | | | | no-unbound-catch-error | Forbid catch clauses with unbound errors | 🟪 ☑️ | | | | | no-unused-mutually-referential | Forbid unused functions, even if mutually referential | 🟪 ☑️ | | | | | no-unused-param-read | Forbid referencing parameters marked as unused with a leading underscore | 🟪 ☑️ | | | | | no-useless-computed-key | Forbid useless computed keys | 🟪 ☑️ | 🔧 | | | | no-useless-iife | Forbid useless IIFEs | 🟩 ✅ 🟪 ☑️ | | 💡 | | | no-useless-logical-fallback | Forbid useless fallback values for logical expressions | ✅ ☑️ | | 💡 | 💭 | | no-useless-return-undefined | Forbid returning undefined in void-returning callbacks | ☑️ | | | 💭 | | no-useless-ts-check | Forbid useless @ts-check comments in TypeScript files | 🟩 ✅ 🟪 ☑️ | | | | | no-useless-use-strict | Forbid useless "use strict" directives. | 🟪 ☑️ | | | | | no-useless-usememo | Forbid useless useMemo() | 🟪 ☑️ | | | | | no-whitespace-property | Forbid leading or trailing whitespace in object keys | 🟪 ☑️ | | | | | nullish-object-spread | Forbid useless fallback for nullish values in object spread | 🟪 ☑️ | | | | | optional-call-expression | Enforce using optional call expression syntax | 🟩 ✅ 🟪 ☑️ | 🔧 | | | | prefer-array-from | Enforce using Array.from or Array.fromAsync over iterative accumulation | 🟩 ✅ 🟪 ☑️ | 🔧 | | | | prefer-catch-method | Enforce usage of Promise.prototype.catch() when it improves readability | 🟩 ✅ 🟪 ☑️ | | 💡 | | | prefer-early-return | Require early returns when possible | 🟪 ☑️ | 🔧 | | | | prefer-eqeq-null | Enforce using x == null instead of x === null \|\| x === undefined | 🟪 ☑️ | 🔧 | | | | prefer-finally | Enforce using finally rather than duplicating code in try and catch blocks | 🟪 ☑️ | | 💡 | | | prefer-getorinsert | Enforce using Map#getOrInsert | 🟪 ☑️ | | 💡 | | | prefer-has | Enforce using Map#has and Set#has | 🟪 ☑️ | 🔧 | | | | prefer-in | Prefer in to Object.hasOwn() and Object.prototype.hasOwnProperty.call() | 🟪 ☑️ | | 💡 | | | prefer-object-keys-values | Enforce using Object.keys() and Object.values() rather than Object.entries() | 🟪 ☑️ | | 💡 | | | prefer-repeat | Enforce usage of String.prototype.repeat | 🟩 ✅ 🟪 ☑️ | | 💡 | | | prefer-satisfies | Prefer satisfies to type assertions | ☑️ | | 💡 | 💭 | | prefer-string-join | Enforce usage of String.prototype.join | 🟩 ✅ 🟪 ☑️ | 🔧 | | | | primitive-valueof | Forbid calling .valueOf() on a primitive | ✅ ☑️ | 🔧 | | 💭 | | slim-try | Enforce moving safe statements out of try blocks | 🟪 ☑️ | 🔧 | | | | styled-button-has-type | Disallow usage of styled.button without an explicit type attribute. | 🟩 ✅ 🟪 ☑️ | | | | | styled-transient-props | Enforce using transient props in styled components to avoid polluting DOM elements with unknown props | 🟩 ✅ 🟪 ☑️ | | | | | suspicious-map-length | Disallow suspicious use of .map().length | 🟩 ✅ 🟪 ☑️ | | 💡 | | | template-tostring | Forbid calling .toString() inside template expressions | 🟪 ☑️ | 🔧 | | | | unsafe-asserted-chain | Disallow unsafe type assertions on optional chained expressions | ☑️ | | | 💭 | | unused-object-assign | Disallow unused Object.assign() expressions | 🟩 ✅ 🟪 ☑️ | | | | | unused-object-freeze | Disallow unused Object.freeze() expressions | 🟩 ✅ 🟪 ☑️ | | | | | useless-as-const | Forbid useless as const assertions | 🟪 ☑️ | | 💡 | | | useless-assign | Enforce directly returning a value instead of assigning it first to a variable | 🟪 ☑️ | 🔧 | | | | useless-conditional-assign | Enforce directly returning a value instead of conditionally assigning it first to a variable | 🟩 ✅ 🟪 ☑️ | 🔧 | | | | useless-intermediary-variable | Disallow unnecessary intermediary variables | 🟪 ☑️ | | 💡 | | | useless-mock | Forbid useless mocks in tests | 🟪 ☑️ | | | | | useless-required | Forbid unnecessary use of Required<T> and Partial<T> | ☑️ | | 💡 | 💭 |