.eslintrc.json

{
  "parser": "typescript-eslint-parser",
  "parserOptions": {
    "ecmaVersion": 2017
  },
  "env": {
    "es6": true,
    "node": true
  },
  "extends": "eslint:recommended",
  "rules": {
    "linebreak-style": [
      "error",
      "unix"
    ],
    "quotes": [
      "error",
      "single"
    ],
    "semi": [
      "error",
      "always"
    ],
    "max-len": [
      "warn",
      { 
        "code": 120
      }
    ]
  }
}