.eslintrc.json

{
  "env": {
    "browser": true,
    "es6": true,
    "node": true
  },
  "parserOptions": {
    "ecmaFeatures": {
      "experimentalObjectRestSpread":true
    }
  },
  "extends": "eslint:recommended",
  "rules": {
    "indent": [2, "tab"],
    "quotes": [2, "single", { "avoidEscape": true, "allowTemplateLiterals": true }],
    "semi": [2, "always"],
    "eqeqeq": 2,
    "strict": [2, "global"],

    "no-console": 1,
    "array-callback-return": 1,
    "block-scoped-var": 1,
    "consistent-return": 1,
    "curly": [1, "multi-line", "consistent"],
    "no-empty-function": 1,
    "no-useless-return": 1,
    "vars-on-top": 1,
    "no-use-before-define": [1, "nofunc"],
    "global-require": 1,
    "camelcase": 1,
    "new-cap": 1,
    "no-lonely-if": 1,
    "no-multiple-empty-lines": [1, { "max": 5 }],
    "no-trailing-spaces": 1,

    "no-restricted-properties": [1, {
      "property": "lenght",
      "message": "Use length instead of lenght (notice the position of the h)"
    }]

  }
}