.eslintrc.json

{
    "env": {
        "node": true,
        "jest/globals": true
    },
    "parserOptions": {
        "ecmaVersion": 2017,
        "sourceType": "module"
    },
    "extends": "standard",
    "plugins": [
        "standard",
        "jest"
    ],
    "rules": {
        "indent": 2,
        "semi": 2,
        "no-underscore-dangle": "off",
        "camelcase": "off",
        "quotes": [
            "error",
            "single"
        ],
        "prefer-destructuring": ["error", {
            "array": false,
            "object": false
        }],
        "space-unary-ops": [
            2, {
                "words": true,
                "nonwords": false,
                "overrides": {
                    "new": false,
                    "++": true
                }
            }
        ],

        "no-multiple-empty-lines": ["error", {
            "max": 2
        }],
        "max-lines": "error",
        "object-curly-spacing": ["error", "always"],
        "object-curly-newline": ["error", {
            "ObjectExpression": {
                "consistent": true,
                "multiline": true,
                "minProperties": 3
            },
            "ObjectPattern": {
                "multiline": false
            }
        }],
        "no-unused-vars": ["warn"],
        "no-trailing-spaces": ["error", {
            "ignoreComments": true
        }]
    },
    "globals": {
        "watchRequire": true
    }

}