.eslintrc.json

{
    "env": {
        "es6": true,
        "node": true,
        "browser": true
    },
    "parserOptions": {
        "ecmaVersion": "latest",
        "sourceType": "module",
        "ecmaFeatures": {
            "experimentalObjectRestSpread": true
        }
    },
    "extends": [
        "eslint:recommended",
        "@hellomouse"
    ],
    "rules": {
        "indent": [
            "error",
            4
        ],
        "curly": [
            "error",
            "multi"
        ],
        "padded-blocks": [
            "error",
            {
                "blocks": "never"
            }
        ],
        "one-var": "off",
        "space-unary-ops": [
            "error",
            {
                "words": true,
                "nonwords": false
            }
        ],
        "padding-line-between-statements": [
            "error",
            {
                "blankLine": "any",
                "prev": "*",
                "next": "return"
            },
            {
                "blankLine": "any",
                "prev": [
                    "const",
                    "let"
                ],
                "next": "*"
            },
            {
                "blankLine": "any",
                "prev": [
                    "const",
                    "let"
                ],
                "next": [
                    "const",
                    "let"
                ]
            }
        ],
        "no-shadow": "error",
        "no-useless-return": "error",
        "block-scoped-var": "error",
        "no-else-return": "error",
        "no-undef-init": "error"
    }
}