.eslintrc

{
  "extends": "eslint:recommended",
  "parserOptions": {
    "ecmaVersion": 6,
    "sourceType": "module"
  },
  "rules": {
    "space-before-blocks": [ 2, "always" ],
    "space-before-function-paren": [ 2, { "anonymous": "always", "named": "never" } ],
    "no-multiple-empty-lines": ["error", {"max": 1}],
    "spaced-comment": 2,
    "no-multi-spaces": 2,
    "one-var-declaration-per-line": 2,
    "no-trailing-spaces": 2,
    "eol-last": 2,
    "eqeqeq": 2,
    "space-in-parens": 2,
    "space-infix-ops": 2,
    "arrow-spacing": 2,
    "arrow-parens": [2, "as-needed"],
    "no-undef": 2,
    "no-eq-null": 2,
    "linebreak-style": 2,
    "strict": [
      2,
      "safe"
    ],
    "key-spacing": [
      2,
      {
        "afterColon": true,
        "mode": "minimum"
      }
    ],
    "max-len": [
      2,
      140
    ],
    "valid-jsdoc": [
      1,
      {
        "requireParamDescription": false,
        "requireReturnDescription": false,
        "requireReturn": false
      }
    ]

  },
  "env": {
    "node": true,
    "es6": true
  },
  "ecmaFeatures": {
    "modules": true
  }
}