.eslint, so far ;)

.eslintrc.json

{
  "env": {
    "browser": true,
    "node": true,
    "es6": true
  },
  "extends": [
    "eslint:recommended",
    "plugin:react/recommended"
  ],
  "parserOptions": {
    "ecmaVersion": 6,
    "ecmaFeatures": {
        "jsx": true
    },
    "sourceType": "module"
  },
  "plugins": [
    "react"
  ],
  "rules": {
    "quotes": [
      "error",
      "single"
    ],
    "semi": [
      2,
      "never"
    ],
    "no-console": [
      "error",
      {
        "allow": ["log"]
      }
    ],
    "no-empty": "error",
    "eqeqeq": "error",
    "prefer-const": "error",
    "no-const-assign": "error",
    "jsx-quotes": [
      "error",
      "prefer-double"
    ],
    "space-in-parens": [
      "error",
      "never"
    ],
    "no-multi-spaces": "error",
    "no-unused-vars": 1
  }
}