.eslintrc.json

{
  "extends": "eslint:recommended",
  "env": {
    "es6": true,
    "browser": true,
    "node": true,
    "mocha": true
  },
  "parserOptions": {
    "sourceType": "module",
    "ecmaFeatures": {
      "experimentalObjectRestSpread": true,
      "jsx": true
    }
  },
  "rules": {
    "eqeqeq": 2,
    "no-const-assign": 2,
    "prefer-const": 2,
    "semi": [2, "always"],

    "array-bracket-spacing": [1, "never"],
    "arrow-spacing": 1,
    "brace-style": [1, "1tbs", {"allowSingleLine": true}],
    "comma-style": [1, "last"],
    "indent": [1, 2, { "MemberExpression": "off" }],
    "keyword-spacing": 1,
    "linebreak-style": [1, "unix"],
    "no-console": 1,
    "no-unused-vars": 1,
    "no-trailing-spaces": 1,
    "object-curly-spacing": [1, "always", {"objectsInObjects": false, "arraysInObjects": false}],
    "padded-blocks": [1, "never"],
    "space-before-blocks": 1,
    "space-in-parens": 1,
    "space-infix-ops": 1
  }
}