.eslintrc.json

{
  "extends": [
    "airbnb-base",
    "plugin:security/recommended",
    "eslint:recommended",
    "plugin:node/recommended"
  ],

  "globals": {

  },

  "env": {
    "browser": true,
    "node": true,
    "es6": true
  },

  "plugins": [
    // Node specific ESLint rules (requires eslint-plugin-node)
    "node",

    // Identify potential security hotspots (requires eslint-plugin-security)
    "security",

    // Enable es6 imports (requires eslint-plugin-import)
     "import"

    // Enable linting in html files (requires eslint-plugin-html)
//     "html"
  ],

  "parserOptions": {
    "ecmaVersion": 2017,
    "sourceType": "module",
    "ecmaFeatures": {
      "impliedStrict": true
    }
  },

  "rules": {
    "indent": ["error", 4, {
      "SwitchCase": 1,
      "VariableDeclarator": 1,
      "outerIIFEBody": 1,
      // MemberExpression: null,
      // CallExpression: {
      //   parameters: null,
      // },
      "FunctionDeclaration": {
        "parameters": 1,
        "body": 1
      },
      "FunctionExpression": {
        "parameters": 1,
        "body": 1
      }
    }],

    "no-underscore-dangle": ["error", {
      "allowAfterThis": true,
      "allowAfterSuper": true
    }],

    "spaced-comment": ["error", "always", {
      "line": {
        "exceptions": ["-", "+", "*"],
        "markers": ["=", "!"] // space here to support sprockets directives
      },
      "block": {
        "exceptions": ["-", "+", "*"],
        "markers": ["=", "!"], // space here to support sprockets directives
        "balanced": false
      }
    }],

    "comma-dangle": ["error", "never"],

    "max-len": ["error", 120, 2, {
      "ignoreUrls": true,
      "ignoreComments": false,
      "ignoreRegExpLiterals": true,
      "ignoreStrings": true,
      "ignoreTemplateLiterals": true
    }],

    "arrow-parens": ["error", "as-needed"],

    "security/detect-child-process": "off",
    "security/detect-non-literal-fs-filename": "off"
  }

}