.eslintrc.json

{
  "env": {
    "browser": true,
    "es6": true,
    "jest/globals": true
  },
  "extends": [
    "airbnb-base"
  ],
  "globals": {
    "Atomics": "readonly",
    "SharedArrayBuffer": "readonly",
    "firebase": "readonly"
  },
  "plugins": ["jest"],
  "parserOptions": {
    "ecmaVersion": 2018,
    "sourceType": "module"
  },
  "rules": {
    "linebreak-style": 0,
    "prefer-destructuring": 0,
    "quotes": 0,
    "comma-dangle": 0,
    "no-use-before-define": 0,
    "spaced-comment": 0,
    "implicit-arrow-linebreak": 0,
    "no-return-assign": 0,
    "object-curly-newline": 0,
    "indent": 0,
    "no-console": 0,
    "no-alert": 0,
    "operator-linebreak": 0,
    "no-confusing-arrow": 0,
    "no-shadow": 0,
     "no-useless-catch": 0,
    "max-len": 0,
    "import/no-cycle": 0,
    "consistent-return": 0,
    "eol-last": 0,
    "prefer-const": 0,
    "no-return-await": 0,
    "no-unused-expressions": 0,
    "no-unused-vars": 0,
    "no-restricted-syntax": 0,
    "import/named": 0,
    "import/no-unresolved": 0,
    "no-proto": 0,
    "no-param-reassign": ["error", { "props": false }],
    "import/extensions": 0,
    "import/prefer-default-export": 0,
    "jest/no-disabled-tests": "warn",
    "jest/no-focused-tests": "error",
    "jest/no-identical-title": "error",
    "jest/prefer-to-have-length": "warn",
    "jest/valid-expect": "error"
  }
}