.eslintrc.json

{
    "env": {
        "es6": true,
        "node": true,
        "mocha": true
    },
    "plugins": ["node"],
    "extends": ["eslint:recommended", "plugin:node/recommended"],
    "parserOptions": {
        "ecmaVersion": 8,
        "sourceType": "module",
        "ecmaFeatures": {
            "modules": true,
            "destructuring": true,
            "spread": true,
            "arrowFunctions": true,
            "blockBindings": true,
            "experimentalObjectRestSpread": true,
            "defaultParams": true,
            "binaryLiterals": true,
            "classes": true,
            "restParams": true,
            "forOf": true,
            "generators": true
        }
    },
    "rules": {
        "node/exports-style": ["error", "module.exports"],
        "indent": [
            "error",
            2
        ],
        "linebreak-style": [
            "error",
            "unix"
        ],
        "quotes": [
            "error",
            "single"
        ],
        "semi": [2, "always"],
        "no-param-reassign": [2, { "props": false }],
        "strict": 0,
        "comma-dangle": [2, "always-multiline"],
        "global-require": 0,
        "arrow-parens": ["error", "always"],
        "max-len": [2, 100, 2, { "ignoreComments": true }],
        "no-underscore-dangle": [2, { "allow": ["_use"] }],
        "node/no-unsupported-features": ["warn", {
            "version": 4,
            "ignores": []
        }],
        "node/no-unpublished-require": ["error", {
            "allowModules": ["babel-core"]
        }]
    },
    "settings": {
        "import/resolver": {
            "babel-module": {}
        }
    }
}