.eslintrc

{
  "root": true,
  "extends": [
    "eslint:recommended",
    "plugin:require-path-exists/recommended"
  ],
  "env": {
    "es6": true,
    "node": true
  },
  "parserOptions": {
    "ecmaVersion": 10,
    "sourceType": "module"
  },
  "parser": "@typescript-eslint/parser",
  "rules": {
    "keyword-spacing": [1, { "before": true }],
    "key-spacing": [1, { "afterColon": true }],
    "consistent-return": 1,
    "no-unexpected-multiline": 1,
    "no-extra-boolean-cast": 1,
    "no-return-await": 1,
    "no-irregular-whitespace": 1,
    "no-mixed-spaces-and-tabs": 1,
    "semi": [1, "always"],
    "no-unused-vars": [
      1,
      {
        "vars": "all",
        "args": "none"
      }
    ],
    "no-var": 1,
    "eqeqeq": 1,
    "dot-notation": 1,
    "no-caller": 2,
    "no-eval": 2,
    "no-extend-native": 2,
    "no-implied-eval": 2,
    "no-shadow": [
      2,
      {
        "allow": ["err"]
      }
    ],
    "quotes": [1, "single"],
    "no-multi-spaces": 1,
    "no-multiple-empty-lines": 1,
    "prefer-arrow-callback": 1,
    "require-atomic-updates": 0,
    "space-infix-ops": 1,
    "space-unary-ops": 1,
    "comma-spacing": 1,
    "curly": 1,
    "@typescript-eslint/prefer-optional-chain": "warn"
  },
  "plugins": ["require-path-exists", "@typescript-eslint/eslint-plugin"],
  "globals": {
    "after": true,
    "afterEach": true,
    "before": true,
    "beforeEach": true,
    "describe": true,
    "it": true,
    "beforeAll": true,
    "test": true
  }
}