.eslintrc.js

module.exports = {
    "env": {
        "browser": true,
        "es6": true
    },
    "extends": "eslint:recommended",
    "globals": {
      "require": true,
      "__DEVELOPMENT__": true,
      "module": true
    },
    "parser": "babel-eslint",
    "parserOptions": {
        "ecmaFeatures": {
            "experimentalObjectRestSpread": true,
            "jsx": true,
	    "modules": true
        },
        "sourceType": "module"
    },
    "plugins": [
        "react"
    ],
    "rules": {
        "no-unreachable": [
            "warn"
        ],
        "no-unused-vars": [
            "warn"
        ],
        "no-case-declarations": [
            "warn"
        ],
        "no-console": [
            "warn"
        ],
        "no-undef": [
            "warn"
        ],
        "no-redeclare": [
            "warn"
        ],
        "indent": [
            "warn",
            2,
            { "SwitchCase": 1 }
        ],
    }
};