.eslintrc.json

{
    "parserOptions": {
        "ecmaVersion": 6,
        "sourceType": "module"
    },
    "rules": {
        "indent": [
            "warn",
            4
        ],
        "linebreak-style": [
            "warn",
            "unix"
        ],
        "quotes": [
            "warn",
            "single"
        ],
        "semi": [
            "warn",
            "never"
        ],
        "no-console": [
            "warn"
        ]
    }
}