.eslintrc

{
  "env": {
      "es6": true,
      "browser": true,
      "node": true
  },
  "extends": "eslint:recommended",
  "plugins": [
    "import"
  ],
  "parserOptions": {
    "sourceType": "module",
    "ecmaVersion": 8 // or 2017
  },
  "globals": {
      "Meteor": true,
      "Desktop": true,
      "Package": true
  },
  "settings": {
      "import/core-modules": [
          "electron",
          "lodash/assignIn",
          "fs-plus"
      ]
  },
  "rules": {
    "import/no-extraneous-dependencies": ["error",
        {
            "devDependencies": ["**/tests/**/*.js"]
        }
    ],    // Possible errors
    "comma-dangle": [1, "always-multiline"],
    "no-console": 0,
    "no-duplicate-case": 2,
    "no-irregular-whitespace": 2,
    "no-unreachable": 1,

    // Best practices
    "curly": [2, "multi-line"],
    "default-case": 2,
    "dot-location": [2, "property"],
    "dot-notation": [2, {
      "allowKeywords": true,
      "allowPattern": "^[A-Za-z]+(_[A-Za-z]+)+$"
    }],
    "eqeqeq": [2, "smart"],
    "no-alert": 2,
    "no-else-return": 2,
    "no-eq-null": 2,
    "no-lone-blocks": 2,
    "no-multi-spaces": [2, {"exceptions": {
      "Property": true,
      "VariableDeclarator": true
    }}],
    "yoda": 2,

    // Variables
    "no-undef": 0,
    "no-unused-vars": 1,

    // Stylistic issues
    "brace-style": 2,
    "camelcase": 2,
    "comma-spacing": 2,
    "comma-style": 2,
    "eol-last": 2,
    "indent": [2, 2, {
      "SwitchCase": 1 //,
      // "VariableDeclarator": {"let": 2, "const": 3}
    }],
    "jsx-quotes": 2,
    "key-spacing": 2,
    "keyword-spacing": 2,
    "linebreak-style": [2, "unix"],
    "lines-around-comment": [0, {
      "allowBlockEnd": true,
      "allowBlockStart": true,
      "allowObjectStart": true
    }],
    "max-len": [1, 120, 2, {"ignoreUrls": true}],
    "newline-after-var": 0,
    "no-mixed-spaces-and-tabs": [2, "smart-tabs"],
    "no-multiple-empty-lines": [2, {"max": 1}],
    "no-spaced-func": 2,
    "no-trailing-spaces": 1,
    "object-curly-spacing": [2, "always"],
    "operator-assignment": 1,
    "operator-linebreak": 2,
    "padded-blocks": [2, "never"],
    "quote-props": [2, "as-needed"],
    "quotes": [2, "single"],
    "semi-spacing": 2,
    "space-before-blocks": 2,
    "space-before-function-paren": [1, {
      "anonymous": "always", "named": "never"
    }],
    "space-infix-ops": 2,
    "space-unary-ops": 2,

    // ES6
    "arrow-spacing": 2,
    "constructor-super": 2,
    "no-confusing-arrow": 2,
    "no-const-assign": 2,
    "no-this-before-super": 2,
    "no-useless-constructor": 2,
    "no-var": 2,
    "object-shorthand": 2,
    // "prefer-const": 2,
    "prefer-spread": 2
  }
}