.eslintrc.json

{
  "env": {
    "es6": false,
    "node": true
  },
  "extends": "eslint:recommended",
  "globals": {},
  "rules": {
    "array-callback-return": "error",
    "complexity": ["error", 10],
    "no-bitwise": "error",
    "camelcase": "off",
    "curly": "error",
    "default-case": "error",
    "dot-location": [
      "error",
      "property"
    ],
    "eqeqeq": "error",
    "guard-for-in": "error",
    "wrap-iife": "error",
    "indent": [
      "error",
      4,
      {
        "SwitchCase": 1
      }
    ],
    "no-use-before-define": "off",
    "new-cap": "off",
    "no-caller": "error",
    "no-empty": "error",
    "no-new": "error",
    "no-plusplus": "off",
    "quotes": [
      "error",
      "single"
    ],
    "no-undef": "error",
    "no-unused-vars": [
      "error",
      {
        "vars": "all",
        "args": "none"
      }
    ],
    "strict": "off",

    "max-len": [
      "warn",
      100
    ],
    "max-depth": [
      "warn",
      {
        "max": 3
      }
    ],
    "max-statements": [
      "off",
      10,
      {
        "ignoreTopLevelFunctions": true
      }
    ],
    "max-statements-per-line": "error",
    "max-params": [
      "error",
      3
    ],
    "max-nested-callbacks": [
      "error",
      3
    ],

    "no-extend-native": "error",
    "semi": [
      "error",
      "always"
    ],
    "no-cond-assign": "error",
    "no-console": "error",
    "no-debugger": "error",
    "no-eq-null": "error",
    "no-eval": "error",
    "no-unused-expressions": "error",
    "block-scoped-var": "error",
    "no-iterator": "error",
    "linebreak-style": [
      "error",
      "unix"
    ],
    "comma-style": [
      "error",
      "last"
    ],
    "no-loop-func": "error",
    "no-multi-str": "error",
    "no-script-url": "off",
    "dot-notation": "error",
    "no-new-func": "error",
    "no-new-wrappers": "error",
    "no-invalid-this": "error",
    "func-names": "off",
    "no-restricted-syntax": [
      "error",
      "ArrowFunctionExpression"
    ],
    "no-multi-spaces": "error",
    "one-var": [
      "error",
      "never"
    ],
    "operator-linebreak": [
      "error",
      "after"
    ],
    "space-unary-ops": [
      "error",
      {
        "words": true,
        "nonwords": false,
        "overrides": {
          "new": true,
          "++": false
        }
      }
    ],
    "key-spacing": [
      "error",
      {
        "beforeColon": false,
        "afterColon": true
      }
    ],
    "comma-spacing": [
      "error",
      {
        "before": false,
        "after": true
      }
    ],
    "semi-spacing": [
      "error",
      {
        "before": false,
        "after": true
      }
    ],
    "space-in-parens": [
      "error",
      "never"
    ],
    "no-trailing-spaces": [
      "error",
      {
        "skipBlankLines": true
      }
    ],
    "comma-dangle": [
      "error",
      "never"
    ],
    "array-bracket-spacing": [
      "error",
      "never"
    ],
    "no-spaced-func": "error",
    "space-before-function-paren": [
      "error",
      "never"
    ],
    "space-infix-ops": "error",
    "keyword-spacing": [
      "error",
      {
        "overrides": {
          "catch": {
            "after": false
          }
        }
      }
    ],
    "space-before-blocks": [
      "error",
      "always"
    ],
    "eol-last": "error",
    "spaced-comment": [
      "error",
      "always"
    ],

    "callback-return": "error",
    "handle-callback-err": "error",

    "no-shadow": "error",
    "no-undef": "error",
    "no-undef-init": "error",
    "no-use-before-define": "error"
  }
}