.eslintrc.json

{
  "env": {
    "node": true,
    "browser": true,
    "es6": true,
    "mocha": true
  },
  "extends": "eslint:recommended",
  "globals": {
    "Atomics": "readonly",
    "SharedArrayBuffer": "readonly"
  },
  "parserOptions": {
    "ecmaVersion": 2018
  },
  "rules": {
    "indent": [
      "error",
      2,
      {
        "SwitchCase": 1
      }
    ],
    "linebreak-style": ["error", "unix"],
    "quotes": [
      "error",
      "single",
      {
        "avoidEscape": true
      }
    ],
    "semi": ["error", "never"],
    "object-curly-spacing": ["error", "always"],
    "require-await": "error",
    "comma-dangle": ["error", "only-multiline"],
    "space-before-function-paren": [
      "error",
      {
        "anonymous": "always",
        "named": "never",
        "asyncArrow": "always"
      }
    ]
  }
}