.eslintrc.json

{
    "env": {
        "es6": true,
        "node": true,
        "mocha": true
    },
    "extends": "eslint:recommended",
    "rules": {
        "indent": [
            "error",
            2
        ],
        "linebreak-style": [
            "error",
            "unix"
        ],
        "quotes": [
            "error",
            "single"
        ],
        "semi": [
            "error",
            "always"
        ],
        "eqeqeq": [
            "error",
            "always"
        ],
        "space-infix-ops": [
            "error",
            {"int32Hint": false}
        ],
        "max-len": [
            "error",
            80,
            2
        ],
        "prefer-const": "error",
        "no-const-assign": "error",
        "no-var": "error",
        "no-new-object": "error",
        "no-array-constructor": "error",
        "prefer-arrow-callback": "error",
        "brace-style": "error"
    }
}