.eslintrc.json

{
    "env": {
      "node": true,
      "mocha": true,
      "es6": true
    },
    "parserOptions": {
      "ecmaVersion": 2017
    },
    "extends":"eslint:recommended",
    "rules": {
      "brace-style": [1, "1tbs"],
      "comma-dangle": [1, "never"],
      "computed-property-spacing": [1, "never"],
      "curly": [1, "all"],
      "eqeqeq": [1, "always"],
      "max-len": [1, 128],
      "no-empty": [1, { "allowEmptyCatch": true }],
      "no-trailing-spaces": 1,
      "no-unused-vars": [1, {"args": "none"}],
      "no-use-before-define": [1, "nofunc"],
      "quotes": [1, "single", {"avoidEscape": true}],
      "semi": [1, "always"],
      "keyword-spacing": [1, {"before": true, "after": true}],
      "space-unary-ops": 1,
      "indent": ["error",2],
      "no-mixed-spaces-and-tabs": 1,
      "padded-blocks": [1, "never"],
  
      "callback-return": 1,
      "no-extra-semi": 1,
      "no-inner-declarations": 2,
  
      "no-eval": 2,
      "no-extend-native": 2,
      "no-new-wrappers": 2,
      "no-with": 2,
  
      "no-undef": 2,
      "array-bracket-spacing": [2, "never"],
      "no-array-constructor": 2,
      "no-new-object": 2,
      "no-console": 2
    }
  }