.eslintrc.json

{
  "root": true,
  "extends": ["eslint-config-airbnb-base"],
  "env": {
    "es6": true,
    "jest": true,
    "es2017": true
  },
  "parserOptions": {
    "ecmaVersion": 2018,
    "sourceType": "module"
  },
  "rules": {
    "import/order": [
      "error",
      {
        "groups": [
          "builtin",
          "external",
          "internal",
          "parent",
          "sibling",
          "index",
          "object",
          "type"
        ]
      }
    ],
    "padding-line-between-statements": [
      "error",
      {
        "blankLine": "always",
        "prev": [
          "multiline-const",
          "multiline-let"
        ],
        "next": "*"
      },
      {
        "blankLine": "always",
        "prev": "*",
        "next": [
          "multiline-const",
          "multiline-let"
        ]
      },
      {
        "blankLine": "never",
        "prev": [
          "singleline-let",
          "singleline-const"
        ],
        "next": [
          "singleline-let",
          "singleline-const"
        ]
      },
      {
        "blankLine": "always",
        "prev": "*",
        "next": "function"
      }
    ],
    "space-before-function-paren": ["error", "always"],
    "newline-before-return": "error",
    "semi": ["error", "always"],
    "curly": [
      "error",
      "multi-line"
    ],
    "import/prefer-default-export": "off",
    "no-console": "error",
    "object-curly-newline": [
      "error",
      {
        "consistent": true
      }
    ],
    "no-use-before-define": "error",
    "no-await-in-loop": "off",
    "no-restricted-syntax": "off",
    "import/no-cycle": "error",
    "no-unused-expressions": ["error", { "allowShortCircuit": true }],
    "no-nested-ternary": "error",
    "max-len": [
      "error",
      {
        "code": 80
      }
    ],
    "prefer-spread": "off",
    "import/no-extraneous-dependencies": "error",
    "no-shadow": "error",
    "arrow-parens": [
      "error",
      "as-needed"
    ],
    "no-param-reassign": "error",
    "no-underscore-dangle": "off",
    "no-prototype-builtins": "off",
    "prefer-destructuring": "off",
    "import/no-mutable-exports": "error",
    "no-restricted-exports": ["error", { "restrictedNamedExports": ["off"] }],
    "arrow-body-style": ["error", "as-needed"],
    "no-alert": "off",
    "max-classes-per-file": [
      "error",
      1
    ],
    "no-useless-constructor": "off",
    "class-methods-use-this": "error",
    "no-plusplus": [
      "error",
      {
        "allowForLoopAfterthoughts": true
      }
    ],
    "no-multi-assign": "error",
    "no-param-reassign": "off",
    "consistent-return": "off",
    "func-names": "off",
    "lines-between-class-members": ["error", "always", { "exceptAfterSingleLine": true }],
    "eol-last": ["error", "always"],
    "cypress/no-unnecessary-waiting": "off"
  }
}