.eslintrc.json

{
    "extends": "eslint:recommended",
    "parserOptions": {
        "ecmaVersion": 6,
        "sourceType": "module"
    },
    "env": {
        "node": true
    },
    "globals": {
        "Promise": false
    },
    "rules": {
        "valid-jsdoc": [
            "warn",
            {
                "preferType": {
                    "object": "Object",
                    "array": "Array",
                    "number": "Number",
                    "String": "string",
                    "Boolean": "boolean",
                    "function": "Function"
                },
                "requireReturn": false,
                "requireParamDescription": false,
                "requireReturnDescription": false
            }
        ],
        "curly": ["error", "all"],
        "default-case": "warn",
        "dot-location": ["error", "property"],
        "dot-notation": "warn",
        "eqeqeq": ["error", "always"],
        "no-console": "warn",
        "no-else-return": "error",
        "no-fallthrough": [
            "warn"
        ],
        "no-new-wrappers": "error",
        "no-new": "error",
        "no-with": "error",
        "wrap-iife": [
            "error",
            "inside",
            {
                "functionPrototypeMethods": true
            }
        ],
        "yoda": ["off", "always"],

        "no-unused-vars": "warn",
        "no-use-before-define": "error",

        "no-new-require": "error",

        "brace-style": ["warn", "1tbs"],
        "camelcase": "warn",
        "indent": "warn",
        "new-parens": "error",
        "no-mixed-spaces-and-tabs": "error",
        "no-new-object": "error",
        "no-restricted-syntax": [
            "error",
            "FunctionDeclaration",
            "ClassBody",
            "ClassDeclaration",
            "ClassExpression"
        ],
        "no-tabs": "error",
        "no-underscore-dangle": "error",
        "quotes": [
            "error",
            "single",
            {
                "allowTemplateLiterals": true
            }
        ],
        "quote-props": ["error", "as-needed"],
        "semi": ["error", "always"],

        "arrow-parens": ["error", "always"],
        "no-useless-computed-key": "warn",
        "no-var": "error",
        "prefer-const": "error",
        "prefer-rest-params": "error",
        "prefer-template": "off"
    }
}