.eslintrc.json

{
  "parser": "babel-eslint",
  "env": {
    "browser": true,
    "commonjs": true,
    "es6": true,
    "mocha": true
  },
  "extends": ["eslint:recommended", "plugin:react/recommended"],
  "parserOptions": {
    "ecmaVersion": 6,
    "ecmaFeatures": {
      "experimentalObjectRestSpread": true,
      "jsx": true
    },
    "sourceType": "module"
  },
  "plugins": [
    "react"
  ],
  "globals": {
    "__dirname": true,
    "process": true,
    "before": true,
    "after": true,
    "arguments": true,
    "Buffer": true
  },
  "rules": {
    "strict": 0,
    "comma-dangle": [
      2,
      "never"
    ],
    "indent": [
      "error",
      2
    ],
    "linebreak-style": [
      "error",
      "unix"
    ],
    "no-case-declarations": "off",
    "no-class-assign": "off",
    "no-unused-vars": [
      "error",
      {
        "vars": "all",
        "args": "none"
      }
    ],
    "quotes": [
      "error",
      "single"
    ],
    "semi": [
      "error",
      "never"
    ]
  }
}