better-regex Improve regexes by making them shorter, consistent, and safer. 🔧 catch-error-name Enforce a specific parameter name in catch clauses. ✅ 🔧 consistent-assert Enforce consistent assertion style with node:assert. ✅ 🔧 consistent-date-clone Prefer passing Date directly to the constructor when cloning. ✅ ☑️ 🔧 consistent-destructuring Use destructured variables over properties. 💡 consistent-empty-array-spread Prefer consistent types when spreading a ternary in an array literal. ✅ 🔧 consistent-existence-index-check Enforce consistent style for element existence checks with indexOf(), lastIndexOf(), findIndex(), and findLastIndex(). ✅ ☑️ 🔧 consistent-function-scoping Move function definitions to the highest possible scope. ✅ consistent-template-literal-escape Enforce consistent style for escaping ${ in template literals. ✅ 🔧 custom-error-definition Enforce correct Error subclassing. 🔧 empty-brace-spaces Enforce no spaces between braces. ✅ 🔧 error-message Enforce passing a message value when creating a built-in error. ✅ ☑️ escape-case Require escape sequences to use uppercase or lowercase values. ✅ ☑️ 🔧 expiring-todo-comments Add expiration conditions to TODO comments. ✅ ☑️ explicit-length-check Enforce explicitly comparing the length or size property of a value. ✅ 🔧 💡 filename-case Enforce a case style for filenames. ✅ import-style Enforce specific import styles per module. ✅ ☑️ isolated-functions Prevent usage of variables from outside the scope of isolated functions. ✅ new-for-builtins Enforce the use of new for all builtins, except String, Number, Boolean, Symbol and BigInt. ✅ ☑️ 🔧 💡 no-abusive-eslint-disable Enforce specifying rules to disable in eslint-disable comments. ✅ ☑️ no-accessor-recursion Disallow recursive access to this within getters and setters. ✅ ☑️ no-anonymous-default-export Disallow anonymous functions and classes as the default export. ✅ ☑️ 💡 no-array-callback-reference Prevent passing a function reference directly to iterator methods. ✅ 💡 no-array-for-each Prefer for…of over the forEach method. ✅ ☑️ 🔧 💡 no-array-method-this-argument Disallow using the this argument in array methods. ✅ ☑️ 🔧 💡 no-array-reduce Disallow Array#reduce() and Array#reduceRight(). ✅ no-array-reverse Prefer Array#toReversed() over Array#reverse(). ✅ ☑️ 💡 no-array-sort Prefer Array#toSorted() over Array#sort(). ✅ ☑️ 💡 no-await-expression-member Disallow member access from await expression. ✅ 🔧 no-await-in-promise-methods Disallow using await in Promise method parameters. ✅ ☑️ 💡 no-console-spaces Do not use leading/trailing space between console.log parameters. ✅ ☑️ 🔧 no-document-cookie Do not use document.cookie directly. ✅ ☑️ no-empty-file Disallow empty files. ✅ ☑️ no-for-loop Do not use a for loop that can be replaced with a for-of loop. ✅ 🔧 💡 no-hex-escape Enforce the use of Unicode escapes instead of hexadecimal escapes. ✅ ☑️ 🔧 no-immediate-mutation Disallow immediate mutation after variable assignment. ✅ 🔧 💡 no-instanceof-builtins Disallow instanceof with built-in objects ✅ ☑️ 🔧 💡 no-invalid-fetch-options Disallow invalid options in fetch() and new Request(). ✅ ☑️ no-invalid-remove-event-listener Prevent calling EventTarget#removeEventListener() with the result of an expression. ✅ ☑️ no-keyword-prefix Disallow identifiers starting with new or class. no-lonely-if Disallow if statements as the only statement in if blocks without else. ✅ ☑️ 🔧 no-magic-array-flat-depth Disallow a magic number as the depth argument in Array#flat(…). ✅ ☑️ no-named-default Disallow named usage of default import and export. ✅ ☑️ 🔧 no-negated-condition Disallow negated conditions. ✅ ☑️ 🔧 no-negation-in-equality-check Disallow negated expression in equality check. ✅ ☑️ 💡 no-nested-ternary Disallow nested ternary expressions. ✅ 🔧 no-new-array Disallow new Array(). ✅ ☑️ 🔧 💡 no-new-buffer Enforce the use of Buffer.from() and Buffer.alloc() instead of the deprecated new Buffer(). ✅ ☑️ 🔧 💡 no-null Disallow the use of the null literal. ✅ 🔧 💡 no-object-as-default-parameter Disallow the use of objects as default parameters. ✅ ☑️ no-process-exit Disallow process.exit(). ✅ ☑️ no-single-promise-in-promise-methods Disallow passing single-element arrays to Promise methods. ✅ ☑️ 🔧 💡 no-static-only-class Disallow classes that only have static members. ✅ ☑️ 🔧 no-thenable Disallow then property. ✅ ☑️ no-this-assignment Disallow assigning this to a variable. ✅ ☑️ no-typeof-undefined Disallow comparing undefined using typeof. ✅ ☑️ 🔧 💡 no-unnecessary-array-flat-depth Disallow using 1 as the depth argument of Array#flat(). ✅ ☑️ 🔧 no-unnecessary-array-splice-count Disallow using .length or Infinity as the deleteCount or skipCount argument of Array#{splice,toSpliced}(). ✅ ☑️ 🔧 no-unnecessary-await Disallow awaiting non-promise values. ✅ ☑️ 🔧 no-unnecessary-polyfills Enforce the use of built-in methods instead of unnecessary polyfills. ✅ ☑️ no-unnecessary-slice-end Disallow using .length or Infinity as the end argument of {Array,String,TypedArray}#slice(). ✅ ☑️ 🔧 no-unreadable-array-destructuring Disallow unreadable array destructuring. ✅ ☑️ 🔧 no-unreadable-iife Disallow unreadable IIFEs. ✅ ☑️ no-unused-properties Disallow unused object properties. no-useless-collection-argument Disallow useless values or fallbacks in Set, Map, WeakSet, or WeakMap. ✅ ☑️ 🔧 💡 no-useless-error-capture-stack-trace Disallow unnecessary Error.captureStackTrace(…). ✅ ☑️ 🔧 no-useless-fallback-in-spread Disallow useless fallback when spreading in object literals. ✅ ☑️ 🔧 no-useless-length-check Disallow useless array length check. ✅ ☑️ 🔧 no-useless-promise-resolve-reject Disallow returning/yielding Promise.resolve/reject() in async functions or promise callbacks ✅ ☑️ 🔧 no-useless-spread Disallow unnecessary spread. ✅ ☑️ 🔧 no-useless-switch-case Disallow useless case in switch statements. ✅ ☑️ 💡 no-useless-undefined Disallow useless undefined. ✅ ☑️ 🔧 no-zero-fractions Disallow number literals with zero fractions or dangling dots. ✅ ☑️ 🔧 number-literal-case Enforce proper case for numeric literals. ✅ ☑️ 🔧 numeric-separators-style Enforce the style of numeric separators by correctly grouping digits. ✅ ☑️ 🔧 prefer-add-event-listener Prefer .addEventListener() and .removeEventListener() over on-functions. ✅ ☑️ 🔧 prefer-array-find Prefer .find(…) and .findLast(…) over the first or last element from .filter(…). ✅ ☑️ 🔧 💡 prefer-array-flat Prefer Array#flat() over legacy techniques to flatten arrays. ✅ ☑️ 🔧 prefer-array-flat-map Prefer .flatMap(…) over .map(…).flat(). ✅ ☑️ 🔧 prefer-array-index-of Prefer Array#{indexOf,lastIndexOf}() over Array#{findIndex,findLastIndex}() when looking for the index of an item. ✅ ☑️ 🔧 💡 prefer-array-some Prefer .some(…) over .filter(…).length check and .{find,findLast,findIndex,findLastIndex}(…). ✅ ☑️ 🔧 💡 prefer-at Prefer .at() method for index access and String#charAt(). ✅ ☑️ 🔧 💡 prefer-bigint-literals Prefer BigInt literals over the constructor. ✅ ☑️ 🔧 💡 prefer-blob-reading-methods Prefer Blob#arrayBuffer() over FileReader#readAsArrayBuffer(…) and Blob#text() over FileReader#readAsText(…). ✅ ☑️ prefer-class-fields Prefer class field declarations over this assignments in constructors. ✅ ☑️ 🔧 💡 prefer-classlist-toggle Prefer using Element#classList.toggle() to toggle class names. ✅ ☑️ 🔧 💡 prefer-code-point Prefer String#codePointAt(…) over String#charCodeAt(…) and String.fromCodePoint(…) over String.fromCharCode(…). ✅ ☑️ 💡 prefer-date-now Prefer Date.now() to get the number of milliseconds since the Unix Epoch. ✅ ☑️ 🔧 prefer-default-parameters Prefer default parameters over reassignment. ✅ ☑️ 💡 prefer-dom-node-append Prefer Node#append() over Node#appendChild(). ✅ ☑️ 🔧 prefer-dom-node-dataset Prefer using .dataset on DOM elements over calling attribute methods. ✅ ☑️ 🔧 prefer-dom-node-remove Prefer childNode.remove() over parentNode.removeChild(childNode). ✅ ☑️ 🔧 💡 prefer-dom-node-text-content Prefer .textContent over .innerText. ✅ ☑️ 💡 prefer-event-target Prefer EventTarget over EventEmitter. ✅ ☑️ prefer-export-from Prefer export…from when re-exporting. ✅ 🔧 💡 prefer-global-this Prefer globalThis over window, self, and global. ✅ ☑️ 🔧 prefer-import-meta-properties Prefer import.meta.{dirname,filename} over legacy techniques for getting file paths. 🔧 prefer-includes Prefer .includes() over .indexOf(), .lastIndexOf(), and Array#some() when checking for existence or non-existence. ✅ ☑️ 🔧 💡 prefer-json-parse-buffer Prefer reading a JSON file as a buffer. 🔧 prefer-keyboard-event-key Prefer KeyboardEvent#key over KeyboardEvent#keyCode. ✅ ☑️ 🔧 prefer-logical-operator-over-ternary Prefer using a logical operator over a ternary. ✅ ☑️ 💡 prefer-math-min-max Prefer Math.min() and Math.max() over ternaries for simple comparisons. ✅ ☑️ 🔧 prefer-math-trunc Enforce the use of Math.trunc instead of bitwise operators. ✅ ☑️ 🔧 💡 prefer-modern-dom-apis Prefer .before() over .insertBefore(), .replaceWith() over .replaceChild(), prefer one of .before(), .after(), .append() or .prepend() over insertAdjacentText() and insertAdjacentElement(). ✅ ☑️ 🔧 prefer-modern-math-apis Prefer modern Math APIs over legacy patterns. ✅ ☑️ 🔧 prefer-module Prefer JavaScript modules (ESM) over CommonJS. ✅ ☑️ 🔧 💡 prefer-native-coercion-functions Prefer using String, Number, BigInt, Boolean, and Symbol directly. ✅ ☑️ 🔧 prefer-negative-index Prefer negative index over .length - index when possible. ✅ ☑️ 🔧 prefer-node-protocol Prefer using the node: protocol when importing Node.js builtin modules. ✅ ☑️ 🔧 prefer-number-properties Prefer Number static properties over global ones. ✅ ☑️ 🔧 💡 prefer-object-from-entries Prefer using Object.fromEntries(…) to transform a list of key-value pairs into an object. ✅ ☑️ 🔧 prefer-optional-catch-binding Prefer omitting the catch binding parameter. ✅ ☑️ 🔧 prefer-prototype-methods Prefer borrowing methods from the prototype instead of the instance. ✅ ☑️ 🔧 prefer-query-selector Prefer .querySelector() over .getElementById(), .querySelectorAll() over .getElementsByClassName() and .getElementsByTagName() and .getElementsByName(). ✅ 🔧 prefer-reflect-apply Prefer Reflect.apply() over Function#apply(). ✅ ☑️ 🔧 prefer-regexp-test Prefer RegExp#test() over String#match() and RegExp#exec(). ✅ ☑️ 🔧 💡 prefer-response-static-json Prefer Response.json() over new Response(JSON.stringify()). ✅ ☑️ 🔧 prefer-set-has Prefer Set#has() over Array#includes() when checking for existence or non-existence. ✅ ☑️ 🔧 💡 prefer-set-size Prefer using Set#size instead of Array#length. ✅ ☑️ 🔧 prefer-single-call Enforce combining multiple Array#push(), Element#classList.{add,remove}(), and importScripts() into one call. ✅ ☑️ 🔧 💡 prefer-spread Prefer the spread operator over Array.from(…), Array#concat(…), Array#{slice,toSpliced}() and String#split(''). ✅ 🔧 💡 prefer-string-raw Prefer using the String.raw tag to avoid escaping \. ✅ ☑️ 🔧 prefer-string-replace-all Prefer String#replaceAll() over regex searches with the global flag. ✅ ☑️ 🔧 prefer-string-slice Prefer String#slice() over String#substr() and String#substring(). ✅ ☑️ 🔧 prefer-string-starts-ends-with Prefer String#startsWith() & String#endsWith() over RegExp#test(). ✅ ☑️ 🔧 💡 prefer-string-trim-start-end Prefer String#trimStart() / String#trimEnd() over String#trimLeft() / String#trimRight(). ✅ ☑️ 🔧 prefer-structured-clone Prefer using structuredClone to create a deep clone. ✅ ☑️ 💡 prefer-switch Prefer switch over multiple else-if. ✅ ☑️ 🔧 prefer-ternary Prefer ternary expressions over simple if-else statements. ✅ ☑️ 🔧 prefer-top-level-await Prefer top-level await over top-level promises and async function calls. ✅ ☑️ 💡 prefer-type-error Enforce throwing TypeError in type checking conditions. ✅ ☑️ 🔧 prevent-abbreviations Prevent abbreviations. ✅ 🔧 relative-url-style Enforce consistent relative URL style. ✅ ☑️ 🔧 💡 require-array-join-separator Enforce using the separator argument with Array#join(). ✅ ☑️ 🔧 require-module-attributes Require non-empty module attributes for imports and exports ✅ ☑️ 🔧 require-module-specifiers Require non-empty specifier list in import and export statements. ✅ ☑️ 🔧 💡 require-number-to-fixed-digits-argument Enforce using the digits argument with Number#toFixed(). ✅ ☑️ 🔧 require-post-message-target-origin Enforce using the targetOrigin argument with window.postMessage(). 💡 string-content Enforce better string content. 🔧 💡 switch-case-braces Enforce consistent brace style for case clauses. ✅ 🔧 template-indent Fix whitespace-insensitive template indentation. ✅ 🔧 text-encoding-identifier-case Enforce consistent case for text encoding identifiers. ✅ ☑️ 🔧 💡 throw-new-error Require new when creating an error. ✅ ☑️ 🔧