.eslintrc.json

{
  "extends": [
    "airbnb-base",
    "plugin:@typescript-eslint/recommended",
    "prettier/@typescript-eslint",
    "plugin:prettier/recommended"
  ],
  "parserOptions": {
    "project": "./tsconfig.json"
  },
  "rules": {
    "import/prefer-default-export": "off",
    "import/no-extraneous-dependencies": [
      "error",
      {
        "devDependencies": ["src/**/*.spec.ts"],
        "optionalDependencies": false,
        "peerDependencies": false
      }
    ],
    "arrow-body-style": ["warn", "as-needed"],
    "func-names":"error",
    "no-use-before-define": "off",
    "no-continue": "off",
    "no-cond-assign": "off",
    "no-eval": "off",
    "no-plusplus": "off",
    "@typescript-eslint/no-use-before-define": "off",
    "@typescript-eslint/explicit-function-return-type": [
      "error",
      {
        "allowExpressions": true,
        "allowTypedFunctionExpressions": true,
        "allowHigherOrderFunctions": true
      }
    ],
    "no-restricted-syntax": [
      "error",
      {
        "selector": "ForInStatement",
        "message": "for..in loops iterate over the entire prototype chain, which is virtually never what you want. Use Object.{keys,values,entries}, and iterate over the resulting array."
      },
      {
        "selector": "LabeledStatement",
        "message": "Labels are a form of GOTO; using them makes code confusing and hard to maintain and understand."
      },
      {
        "selector": "WithStatement",
        "message": "`with` is disallowed in strict mode because it makes code impossible to predict and optimize."
      }
    ]
  },
  "settings": {
    "import/resolver": {
      "node": {
        "extensions": [".js", ".ts"]
      }
    }
  },
  "env": {
    "node": true,
    "browser": false
  },
  "overrides": [
    {
      "files": "src/**/*.spec.ts",
      "env": {
        "mocha": true
      },
      "rules": {
        "no-unused-expressions": "off",
        "dot-notation": "off"
      }
    }
  ]
}