.eslintrc

{
  "parser": "babel-eslint",
  "env": {
    "node": true,
    "es6": true,
    "jest/globals": true
  },
  "plugins": [
    "prettier",
    "jest"
  ],
  "extends": [
      "eslint:recommended"
  ],
  "parserOptions": {
    "ecmaVersion": 8,
    "sourceType": "module",
    "ecmaFeatures": {
      "impliedStrict": true,
      "experimentalObjectRestSpread": true
    }
  },
  "rules": {
    "prettier/prettier": ["error", {"singleQuote": true, "trailingComma":"all"}],
    "no-console": 0,
    "no-unused-vars": 1,
    "no-constant-condition": "error",
    "complexity": "warn",
    "max-depth": "warn",
    "max-statements": ["warn", 15],
    "no-eq-null": "warn",
    "no-implicit-coercion": "error",
    "no-return-assign": ["warn", "always"],
    "no-unmodified-loop-condition": "warn",
    "no-useless-call": "warn",
    "no-useless-escape": "warn",
    "no-useless-return": "warn",
    "yoda": "warn",
    "no-duplicate-imports": "warn",
    "prefer-arrow-callback": "warn",
    "prefer-template": "warn",

    "jest/no-disabled-tests": "warn",
    "jest/no-focused-tests": "error",
    "jest/no-identical-title": "error",
    "jest/valid-expect": "error"
  },
  "globals": {
    "fetch": true
  }
}