.eslintrc.json

{
    "env": {
        "browser": true,
        "commonjs": true,
        "es6": true,
        "node": true
    },
    "extends": "eslint:recommended",
    "rules": {
        "no-console" : 0,
        "key-spacing" : [
            "error",
            { 
                "beforeColon" : true,
                "afterColon" : true
            }
        ],
        "space-before-blocks": "error",
        "space-before-function-paren" : [
            "error",
            {"anonymous": "always", "named": "never"}
        ],

        "indent": [
            "error",
            4
        ],
        "linebreak-style": [
            "error",
            "unix"
        ],
        "quotes": [
            "error",
            "single"
        ],
        "semi": [
            "error",
            "never"
        ]
    }
}