.eslintrc

{
  "root": true,
  "parserOptions": {
    "parser": "@babel/eslint-parser",
    "requireConfigFile": false,
    "allowImportExportEverywhere": true,
    "sourceType": "module",
    "ecmaVersion": "latest",
    "ecmaFeatures": {
      "jsx": true
    }
  },
  "env": {
    "es6": true,
    "browser": true,
    "node": true,
    "jest": true
  },
  "extends": ["eslint:recommended"],
  "rules": {
    "no-debugger": "off",
    "no-var": "error",
    "no-tabs": "error",
    "no-trailing-spaces": "error",
    "no-mixed-spaces-and-tabs": "error",
    "no-undef": "error",
    "no-extra-semi": "error",
    "no-empty": "error",
    "no-console": "off",
    "semi": [2, "never"],
    "max-len": [
      "warn",
      {
        "code": 160
      }
    ],
    "function-paren-newline": ["off"],
    "object-property-newline": [
      "warn",
      {
        "allowAllPropertiesOnSameLine": true
      }
    ],
    "newline-per-chained-call": [
      "warn",
      {
        "ignoreChainWithDepth": 4
      }
    ],
    "comma-dangle": "off",
    "semi-style": ["warn", "last"],
    "max-lines": ["error", 2000],
    "max-lines-per-function": ["error", 200],
    "complexity": ["error", 26],
    "max-depth": ["warn", 4],
    "max-nested-callbacks": ["error", 4],
    "no-multi-assign": "off",
    "no-undef-init": "warn",
    "no-shadow": "off",
    "max-params": ["warn", 5],
    "no-param-reassign": "off",
    "prefer-rest-params": "off",
    "prefer-arrow-callback": "error",
    "arrow-body-style": ["warn", "as-needed"],
    "no-this-before-super": "error",
    "quotes": ["warn", "single"],
    "prefer-template": "off",
    "no-multi-str": "warn",
    "object-shorthand": "warn",
    "dot-notation": "error",
    "accessor-pairs": "error",
    "no-prototype-builtins": "error",
    "guard-for-in": "error",
    "eqeqeq": "warn",
    "no-fallthrough": "error",
    "no-case-declarations": "error",
    "no-unsafe-finally": "error",
    "no-eval": "error",
    "no-with": "error",
    "no-implicit-coercion": [
      "error",
      {
        "allow": ["!!", "~"]
      }
    ]
  }
}