.eslintrc.json

{
  "env": {
    "es6": true,
    "mocha": true
  },
  "extends": ["airbnb-base", "plugin:prettier/recommended"],
  "plugins": ["import", "prettier"],
  "parserOptions": {
    "ecmaVersion": 2020,
    "sourceType": "module"
  },
  "settings": {
    "import/extensions": [".js", ".mjs"],
    "import/resolver": {
      "node": {
        "extensions": [".js"]
      }
    }
  },
  "rules": {
    "import/no-named-as-default-member": 0,
    "import/no-named-as-default": 0,
    "arrow-parens": ["error", "always"],
    "no-underscore-dangle": "error",
    "no-console": "error",
    "prettier/prettier": [
      "error",
      {
        "semi": true,
        "printWidth": 120,
        "singleQuote": true,
        "arrowParens": "always"
      }
    ],
    "func-names": ["error", "always"],
    "comma-dangle": ["error", "never"],
    "no-param-reassign": ["error", { "props": false }],
    "max-len": ["error", 120, { "ignoreRegExpLiterals": true }]
  }
}