.eslintrc

{
  "parser": "babel-eslint",
  "parserOptions": {
    "ecmaVersion": 6,
    "sourceType": "module",
    "ecmaFeatures": {
      "jsx": true
    }
  },
  "rules": {
    "quotes": [
      "error",
      "single"
    ],
    "semi": ["error", "always"],
    "curly": "error",
    "object-curly-spacing": ["error", "always"],
    "space-unary-ops": [
        2, {
          "words": true,
          "nonwords": false,
          "overrides": {
            "new": false,
            "++": false
          }
    }],
    "spaced-comment": ["error", "always", {
      "line": {
        "markers": ["/"],
        "exceptions": ["-", "+"]
      },
      "block": {
        "markers": ["!"],
        "exceptions": ["*"],
        "balanced": true
      }
    }],
    "indent": ["error", 2, {
      "SwitchCase": 1,
      "MemberExpression": 1,
      "ArrayExpression": 1,
      "ObjectExpression": 1
    }],
    "newline-per-chained-call": ["error", { "ignoreChainWithDepth": 2 }],
    "space-before-function-paren": ["error", {
      "anonymous": "always",
      "named": "always",
      "asyncArrow": "always"
    }],
    "no-multiple-empty-lines": ["error", {
      "max": 1
    }],
    "max-len": ["warn", 80],
    "max-depth": ["error", 2],
    "max-lines": ["error", {"max": 350, "skipComments": true}],
    "max-statements": ["error", 80],
    "eol-last": ["error", "always"],
    "linebreak-style": ["error", "unix"],
    "brace-style": ["error", "stroustrup"],
    "require-jsdoc": ["warn", {
      "require": {
        "FunctionDeclaration": true,
        "MethodDefinition": true,
        "ClassDeclaration": true
      }
    }],
    "valid-jsdoc": ["error", {
        "prefer": {
          "arg": "param",
          "return": "returns"
        },
        "preferType": {
          "Boolean": "boolean",
          "Number": "number",
          "object": "Object",
          "String": "string"
        },
        "requireReturn": false,
        "requireReturnType": true,
        "requireParamDescription": false,
        "requireReturnDescription": false
    }]
  }
}