.eslintrc.json

{
  "env": {
    "browser": true,
    "commonjs": true,
    "es2021": true
  },
  "extends": ["eslint:recommended"],
  "parserOptions": {
    "ecmaVersion": "latest"
  },
  "rules": {
    "prettier/prettier": "off",
    "curly": "error",
    "operator-linebreak": ["error", "after"],
    "semi-style": ["error", "last"],
    "semi-spacing": "error",
    "comma-style": ["error", "last"],
    "max-len": ["error", { "code": 120 }],
    "keyword-spacing": ["error", { "before": true }],
    "space-infix-ops": "error",
    "space-unary-ops": "error",
    "space-in-parens": ["error", "never"],
    "no-new-wrappers": "error",
    "no-new-object": "error",
    "no-new-func": "error",
    "prefer-template": "error",
    "no-useless-concat": "error",
    "no-array-constructor": "error",
    "no-var": "error",
    "prefer-const": "error",
    "no-throw-literal": "error",
    "default-case": "error",
    "eqeqeq": ["error", "smart"],
    "func-style": ["error", "declaration", { "allowArrowFunctions": true }],
    "prefer-arrow-callback": "error",
    "array-callback-return": "error",
    "indent": ["error", 2],
    "no-unneeded-ternary": "error",
    "no-restricted-syntax": [
      "error",
      {
        "selector": "ExportDefaultDeclaration",
        "message": "Prefer named exports"
      }
    ],
    "no-template-curly-in-string": "error",
    "no-constructor-return": "error",
    "no-extra-bind": "error",
    "no-floating-decimal": "error",
    "no-invalid-this": "error",
    "no-iterator": "error",
    "no-labels": "error",
    "no-lone-blocks": "error",
    "no-multi-spaces": "error",
    "no-multi-str": "error",
    "no-new": "error",
    "no-self-compare": "error",
    "no-useless-call": "error",
    "semi": ["error", "always"],
    "brace-style": "error",
    "no-redeclare": "error",
    "no-extra-semi": "error",
    "no-unused-vars": [
      "error",
      {
        "argsIgnorePattern": "^_",
        "varsIgnorePattern": "^_",
        "ignoreRestSiblings": true
      }
    ],
    "no-empty-function": "error",
    "no-duplicate-imports": "error",
    "func-call-spacing": "error",
    "comma-dangle": ["error", "always-multiline"],
    "quotes": ["error", "single"],
    "key-spacing": "error",
    "comma-spacing": "error",
    "no-shadow": "error",
    "padding-line-between-statements": [
      "error",
      {
        "blankLine": "always",
        "prev": "import",
        "next": "*"
      },
      {
        "blankLine": "any",
        "prev": "import",
        "next": "import"
      }
    ],
    "array-bracket-spacing": ["error", "never"],
    "object-curly-spacing": ["error", "always"]
  }
}