get started with eslint in node env

.eslint

{
    "env": {
        "node": 1,
        "browser": 1
    },
    "extends": "eslint:recommended",
    "globals": {},
    "rules": {
        "indent": [
            "error",
            4,
            {
                "SwitchCase": 1
            }
        ],
        "linebreak-style": [
            "error",
            "unix"
        ],
        "quotes": [
            "error",
            "single"
        ],
        "quote-props": [
            "error",
            "as-needed"
        ],
        "semi": [
            "error",
            "always"
        ],
        "no-var": [
            "error"
        ],
        "no-new-object": [
            "error"
        ],
        "object-shorthand": [
            "error"
        ],
        "no-alert": [
            "error"
        ],
        "keyword-spacing": [
            "error",
            {
                "before": true,
                "after": true
            }
        ],
        "semi-spacing": [
            "error",
            {
                "before": false,
                "after": true
            }
        ],
        "space-before-function-paren": [
            "error",
            {
                "anonymous": "always",
                "named": "never"
            }
        ],
        "space-before-blocks": [
            "error",
            "always"
        ],
        "object-curly-spacing": [
            "error",
            "never"
        ],
        "key-spacing": [
            "error",
            {
                "afterColon": true,
                "beforeColon": false
            }
        ],
        "comma-spacing": [
            "error",
            {
                "before": false,
                "after": true
            }
        ],
        "curly": [
            "error"
        ],
        "space-infix-ops": [
            "error"
        ],
        "space-in-parens": [
            "error",
            "never"
        ],
        "brace-style": [
            "error",
            "1tbs",
            {
                "allowSingleLine": true
            }
        ]
    },
    "plugins": []
}