.eslintrc.json

{
    "env": {
        "browser": true,
        "commonjs": true,
        "es6": true,
        "node": true,
        "jest": true
    },
    "extends": [ "airbnb-base" ],
    "plugins": [ "mocha", "node"],
    "globals": {
        "Atomics": "readonly",
        "SharedArrayBuffer": "readonly"
    },
    "parserOptions": {
        "ecmaVersion": 2018
    },
    "rules": {
        "no-console": "off",
        "linebreak-style": 0,
        "comma-dangle": ["error", "never"],
        "no-unused-vars": ["error", { "argsIgnorePattern": "^next" }],
        "arrow-body-style": ["error", "as-needed", { "requireReturnForObjectLiteral": true }],
        "operator-linebreak": ["error", "after", { "overrides": { "?": "ignore", ":": "ignore" } }],
        "max-len": ["error", { "ignoreComments": true, "code": 140  }],
        "object-shorthand": [2, "consistent"],
        "global-require": "off",
        "prefer-destructuring": ["error", {
            "VariableDeclarator": {
                "array": false,
                "object": false
            }
        }],
        "no-underscore-dangle": ["error", { "allow": ["_id"]}],
        "object-curly-newline": 0,
        "implicit-arrow-linebreak": 0,
        "newline-per-chained-call": "off"
    }
}