.eslintrc.json

{
  "env": {
    "browser": true,
    "es6": true,
    "greasemonkey": true
  },
  "extends": ["eslint:all", "plugin:unicorn/all"],
  "globals": {
    "BigInt": "readonly",
    "ClipboardItem": "readonly"
  },
  "parser": "@babel/eslint-parser",
  "parserOptions": {
    "requireConfigFile": false,
    "sourceType": "script"
  },
  "plugins": ["unicorn"],
  "rules": {
    "array-element-newline": ["error", "consistent"],
    "arrow-body-style": ["error", "as-needed"],
    "arrow-parens": ["error", "as-needed"],
    "brace-style": ["error", "1tbs", { "allowSingleLine": true }],
    "camelcase": "off",
    "capitalized-comments": "off",
    "class-methods-use-this": "off",
    "comma-dangle": ["warn", "always-multiline"],
    "complexity": "off",
    "consistent-return": "off",
    "consistent-this": ["error", "_self"],
    "curly": ["error", "multi-line"],
    "dot-location": ["error", "property"],
    "eqeqeq": ["error", "always", { "null": "ignore" }],
    "func-names": ["error", "never"],
    "func-style": ["error", "declaration", { "allowArrowFunctions": true }],
    "function-call-argument-newline": ["error", "consistent"],
    "generator-star-spacing": ["error", "after"],
    "id-denylist": "off",
    "id-length": "off",
    "id-match": "off",
    "indent": ["error", 2, { "SwitchCase": 1 }],
    "line-comment-position": "off",
    "linebreak-style": "off",
    "lines-around-comment": "off",
    "lines-between-class-members": ["error", "always", { "exceptAfterSingleLine": true }],
    "max-classes-per-file": "off",
    "max-depth": ["error", 10],
    "max-len": "off",
    "max-lines-per-function": "off",
    "max-lines": "off",
    "max-params": ["error", 5],
    "max-statements-per-line": "off",
    "max-statements": "off",
    "multiline-comment-style": "off",
    "multiline-ternary": "off",
    "new-cap": "off",
    "newline-per-chained-call": "off",
    "no-alert": "off",
    "no-await-in-loop": "off",
    "no-bitwise": "off",
    "no-console": "off",
    "no-continue": "off",
    "no-debugger": "warn",
    "no-else-return": "off",
    "no-empty-function": "off",
    "no-empty": ["warn", { "allowEmptyCatch": true }],
    "no-eq-null": "off",
    "no-extra-parens": "off",
    "no-inline-comments": "off",
    "no-labels": "off",
    "no-lonely-if": "off",
    "no-loop-func": "off",
    "no-magic-numbers": "off",
    "no-mixed-operators": ["error", { "groups": [["&", "|", "^", "~", "<<", ">>", ">>>"], ["==", "!=", "===", "!==", ">", ">=", "<", "<="], ["&&", "||", "?:", "??"], ["in", "instanceof"]] }],
    "no-multi-assign": "off",
    "no-multiple-empty-lines": ["warn", { "max": 1 }],
    "no-negated-condition": "off",
    "no-param-reassign": "off",
    "no-plusplus": "off",
    "no-promise-executor-return": "off",
    "no-restricted-exports": "off",
    "no-restricted-imports": "off",
    "no-restricted-properties": "off",
    "no-restricted-syntax": "off",
    "no-shadow": "off",
    "no-template-curly-in-string": "off",
    "no-ternary": "off",
    "no-undefined": "off",
    "no-underscore-dangle": "off",
    "no-unmodified-loop-condition": "warn",
    "no-unused-expressions": ["error", { "allowShortCircuit": true, "allowTernary": true, "allowTaggedTemplates": true }],
    "no-unused-vars": "warn",
    "no-use-before-define": "off",
    "no-void": "off",
    "no-warning-comments": "off", // off for unicorn
    "object-curly-spacing": ["error", "always"],
    "object-property-newline": "off",
    "one-var": ["error", { "initialized": "never" }],
    "operator-linebreak": ["error", "before"],
    "padded-blocks": "off",
    "padding-line-between-statements": "off",
    "prefer-arrow-callback": ["warn", { "allowNamedFunctions": true }],
    "prefer-const": "warn",
    "prefer-destructuring": ["error", { "VariableDeclarator": { "object": true } }],
    "prefer-named-capture-group": "off",
    "prefer-template": "off",
    "quote-props": "off",
    "quotes": ["error", "single"],
    "radix": ["error", "as-needed"],
    "require-atomic-updates": "off",
    "require-unicode-regexp": "off",
    "semi": ["error", "never"],
    "sort-keys": "off",
    "space-before-function-paren": ["error", { "anonymous": "never", "named": "never", "asyncArrow": "always" }],
    "wrap-iife": ["error", "inside"],
    "wrap-regex": "off",
    "yield-star-spacing": ["error", "after"],

    // unicorn
    "unicorn/catch-error-name": "off",
    "unicorn/consistent-destructuring": "off",
    "unicorn/consistent-function-scoping": "off",
    "unicorn/empty-brace-spaces": "warn",
    "unicorn/expiring-todo-comments": ["warn", { "allowWarningComments": false }],
    "unicorn/filename-case": "off",
    "unicorn/no-array-reduce": "off",
    "unicorn/no-await-expression-member": "off",
    "unicorn/no-keyword-prefix": "off",
    "unicorn/no-lonely-if": "off",
    "unicorn/no-negated-condition": "off",
    "unicorn/no-new-array": "off",
    "unicorn/no-null": "off",
    "unicorn/no-this-assignment": "off",
    "unicorn/no-unsafe-regex": "off",
    "unicorn/no-useless-switch-case": "off",
    "unicorn/no-zero-fractions": "off",
    "unicorn/numeric-separators-style": "off",
    "unicorn/prefer-add-event-listener": "off",
    "unicorn/prefer-dom-node-append": "off",
    "unicorn/prefer-module": "off",
    "unicorn/prefer-switch": "off",
    "unicorn/prefer-ternary": "off",
    "unicorn/prevent-abbreviations": "off",
    "unicorn/string-content": "off"
  }
}