.eslintrc

{
  "parserOptions": {
    "ecmaVersion": "2022"
  },
  "env": {
    "es6": true,
    "node": true
  },
  "plugins": ["import", "prettier"],
  "extends": [
    "eslint:recommended",
    "plugin:import/recommended",
    "plugin:import/errors",
    "plugin:import/warnings",
    "prettier"
  ],
  "globals": {
    "document": false,
    "navigator": false,
    "window": false
  },
  "rules": {
    "linebreak-style": ["error", "unix"],
    "consistent-this": "warn",
    "class-methods-use-this": "warn",
    "no-console": "off",
    "no-else-return": "warn",
    "no-invalid-this": "warn",
    "semi": [1, "always"],
    "accessor-pairs": "error",
    "arrow-spacing": [
      "error",
      {
        "before": true,
        "after": true
      }
    ],
    "block-spacing": ["error", "always"],
    "brace-style": [
      "error",
      "1tbs",
      {
        "allowSingleLine": true
      }
    ],
    "camelcase": [
      "error",
      {
        "properties": "never"
      }
    ],
    "comma-dangle": [
      "error",
      {
        "arrays": "never",
        "objects": "never",
        "imports": "never",
        "exports": "never",
        "functions": "never"
      }
    ],
    "comma-spacing": [
      "error",
      {
        "before": false,
        "after": true
      }
    ],
    "comma-style": ["error", "last"],
    "constructor-super": "error",
    "curly": ["error", "multi-line"],
    "dot-location": ["error", "property"],
    "func-call-spacing": ["error", "never"],
    "generator-star-spacing": [
      "error",
      {
        "before": true,
        "after": true
      }
    ],
    "handle-callback-err": ["error", "^(err|error)$"],
    "indent": [
      "error",
      2,
      {
        "SwitchCase": 1,
        "VariableDeclarator": 1,
        "outerIIFEBody": 1,
        "MemberExpression": 1,
        "FunctionDeclaration": {
          "parameters": 1,
          "body": 1
        },
        "FunctionExpression": {
          "parameters": 1,
          "body": 1
        },
        "CallExpression": {
          "arguments": 1
        },
        "ArrayExpression": 1,
        "ObjectExpression": 1,
        "ImportDeclaration": 1,
        "flatTernaryExpressions": false,
        "ignoreComments": false
      }
    ],
    "key-spacing": [
      "error",
      {
        "beforeColon": false,
        "afterColon": true
      }
    ],
    "keyword-spacing": [
      "error",
      {
        "before": true,
        "after": true,
        "overrides": {
          "return": {
            "after": true
          },
          "for": {
            "after": true
          }
        }
      }
    ],
    "new-cap": [
      "error",
      {
        "newIsCap": true,
        "capIsNew": false
      }
    ],
    "new-parens": "error",
    "no-array-constructor": "error",
    "no-caller": "error",
    "no-class-assign": "error",
    "no-compare-neg-zero": "error",
    "no-cond-assign": "error",
    "no-const-assign": "error",
    "no-constant-condition": [
      "error",
      {
        "checkLoops": false
      }
    ],
    "no-control-regex": "error",
    "no-debugger": "error",
    "no-delete-var": "error",
    "no-dupe-args": "error",
    "no-dupe-class-members": "error",
    "no-dupe-keys": "error",
    "no-duplicate-case": "error",
    "no-empty-character-class": "error",
    "no-empty-pattern": "error",
    "no-eval": "error",
    "no-ex-assign": "error",
    "no-extend-native": "error",
    "no-extra-bind": "error",
    "no-extra-boolean-cast": "error",
    "no-extra-parens": ["error", "functions"],
    "no-fallthrough": "error",
    "no-floating-decimal": "error",
    "no-func-assign": "error",
    "no-global-assign": "error",
    "no-implied-eval": "error",
    "no-inner-declarations": ["error", "functions"],
    "no-invalid-regexp": "error",
    "no-irregular-whitespace": "error",
    "no-iterator": "error",
    "no-label-var": "error",
    "no-labels": [
      "error",
      {
        "allowLoop": false,
        "allowSwitch": false
      }
    ],
    "no-lone-blocks": "error",
    "no-mixed-operators": [
      "error",
      {
        "groups": [
          ["==", "!=", "===", "!==", ">", ">=", "<", "<="],
          ["&&", "||"],
          ["in", "instanceof"]
        ],
        "allowSamePrecedence": true
      }
    ],
    "no-mixed-spaces-and-tabs": "error",
    "no-multi-spaces": "error",
    "no-multi-str": "error",
    "no-multiple-empty-lines": [
      "error",
      {
        "max": 1,
        "maxEOF": 0
      }
    ],
    "no-negated-in-lhs": "error",
    "no-new": "error",
    "no-new-func": "error",
    "no-new-object": "error",
    "no-new-require": "error",
    "no-new-symbol": "error",
    "no-new-wrappers": "error",
    "no-obj-calls": "error",
    "no-octal": "error",
    "no-octal-escape": "error",
    "no-path-concat": "error",
    "no-proto": "error",
    "no-redeclare": "error",
    "no-regex-spaces": "error",
    "no-return-assign": ["error", "except-parens"],
    "no-return-await": "error",
    "no-self-assign": "error",
    "no-self-compare": "error",
    "no-sequences": "error",
    "no-shadow-restricted-names": "error",
    "no-sparse-arrays": "error",
    "no-tabs": "error",
    "no-template-curly-in-string": "error",
    "no-this-before-super": "error",
    "no-throw-literal": "error",
    "no-trailing-spaces": "error",
    "no-undef": "error",
    "no-undef-init": "error",
    "no-unexpected-multiline": "error",
    "no-unmodified-loop-condition": "error",
    "no-unneeded-ternary": [
      "error",
      {
        "defaultAssignment": false
      }
    ],
    "no-unreachable": "error",
    "no-unsafe-finally": "error",
    "no-unsafe-negation": "error",
    "no-unused-expressions": [
      "error",
      {
        "allowShortCircuit": true,
        "allowTernary": true,
        "allowTaggedTemplates": true
      }
    ],
    "no-unused-vars": [
      "error",
      {
        "vars": "all",
        "args": "none",
        "ignoreRestSiblings": true
      }
    ],
    "no-use-before-define": [
      "error",
      {
        "functions": false,
        "classes": false,
        "variables": false
      }
    ],
    "no-useless-call": "error",
    "no-useless-computed-key": "error",
    "no-useless-constructor": "error",
    "no-useless-escape": "error",
    "no-useless-rename": "error",
    "no-useless-return": "error",
    "no-whitespace-before-property": "error",
    "no-with": "error",
    "object-curly-spacing": ["error", "always"],
    "object-property-newline": [
      "error",
      {
        "allowMultiplePropertiesPerLine": true
      }
    ],
    "one-var": [
      "error",
      {
        "initialized": "never"
      }
    ],
    "operator-linebreak": [
      "error",
      "after",
      {
        "overrides": {
          "?": "before",
          ":": "before"
        }
      }
    ],
    "padded-blocks": [
      "error",
      {
        "blocks": "never",
        "switches": "never",
        "classes": "never"
      }
    ],
    "prefer-promise-reject-errors": "error",
    "quotes": [
      "error",
      "double",
      {
        "avoidEscape": true,
        "allowTemplateLiterals": true
      }
    ],
    "rest-spread-spacing": ["error", "never"],
    "semi-spacing": [
      "error",
      {
        "before": false,
        "after": true
      }
    ],
    "space-before-blocks": ["error", "always"],
    "space-before-function-paren": ["error", "always"],
    "space-in-parens": ["error", "never"],
    "space-infix-ops": "error",
    "space-unary-ops": [
      "error",
      {
        "words": true,
        "nonwords": false
      }
    ],
    "spaced-comment": [
      "error",
      "always",
      {
        "line": {
          "markers": ["*package", "!", "/", ",", "="]
        },
        "block": {
          "balanced": true,
          "markers": ["*package", "!", ",", ":", "::", "flow-include"],
          "exceptions": ["*"]
        }
      }
    ],
    "symbol-description": "error",
    "template-curly-spacing": ["error", "never"],
    "template-tag-spacing": ["error", "never"],
    "unicode-bom": ["error", "never"],
    "use-isnan": "error",
    "valid-typeof": [
      "error",
      {
        "requireStringLiterals": true
      }
    ],
    "wrap-iife": [
      "error",
      "any",
      {
        "functionPrototypeMethods": true
      }
    ],
    "yield-star-spacing": ["error", "both"],
    "yoda": ["error", "never"],
    "prettier/prettier": 2, // Means error
    "import/order": [
      "error",
      {
        "groups": ["builtin", "external", "internal"],
        "pathGroups": [
          {
            "pattern": "react",
            "group": "external",
            "position": "before"
          }
        ],
        "pathGroupsExcludedImportTypes": ["react"],
        "newlines-between": "always",
        "alphabetize": {
          "order": "asc",
          "caseInsensitive": true
        }
      }
    ]
  }
}