.eslintrc

{
    "env": {
        "node": true,
        "mocha": true,
        "es6": true
    },
    "extends": "eslint:recommended",
    "rules": {
        "arrow-parens": [
            "error",
            "always"
        ],
        "callback-return": [
            "error"
        ],
        "curly": [
            "error",
            "all"
        ],
        "func-style": [
            "error",
            "expression"
        ],
        "indent": [
            "error",
            4,
            {
                "SwitchCase": 1
            }
        ],
        "no-console": [
            "off"
        ],
        "no-var": [
            "warn"
        ],
        "prefer-arrow-callback": [
            "error"
        ],
        "quotes": [
            "error",
            "single"
        ],
        "semi": [
            "error",
            "always"
        ]
    },
    "parserOptions": {
        "ecmaVersion": 8
    }
}