.eslintrc.json

{
    "env": {
        "node": true
    },
    "extends": [
        "airbnb-base"
    ],
    "parserOptions": {
        "ecmaVersion": 12
    },
    "rules": {
      "comma-dangle": ["error", "only-multiline"],
      "default-case": "off",
      "func-names": ["error", "never"],
      "global-require": "off",
      "import/no-extraneous-dependencies": ["error", {"devDependencies": true}],
      "import/no-unresolved": ["error", { "ignore": ["posix"], "commonjs": true, "caseSensitive": true }],
      "no-bitwise": "off",
      "no-console": "off",
      "no-new": "off",
      "no-param-reassign": "off",
      "no-underscore-dangle": "off",
      "no-unused-vars": ["error", { "argsIgnorePattern": "^_", "varsIgnorePattern": "^_" }],
      "object-curly-newline": ["error", {
        "ObjectExpression": { "multiline": true, "minProperties": 4 },
        "ExportDeclaration": { "multiline": true, "minProperties": 4 }
      }]
    },
    "overrides": [
      {
        "files": ["*_test.js"],
        "rules": { "no-unused-expressions": "off" }
      }
    ]
}