.eslintrc.json

{
  "env": {
    "es6": true,
    "node": true,
    "jest": true
  },
  "extends": [
    "airbnb-base",
    "prettier/@typescript-eslint",
    "eslint:recommended",
    "plugin:@typescript-eslint/recommended",
    "prettier"
  ],
  "globals": {
    "Atomics": "readonly",
    "SharedArrayBuffer": "readonly"
  },
  "parser": "@typescript-eslint/parser",
  "parserOptions": {
    "ecmaVersion": 2018,
    "sourceType": "module"
  },
  "plugins": ["@typescript-eslint", "prettier"],
  "rules": {
    "import/extensions": [
      "error",
      "ignorePackages",
      {
        "ts": "never",
        "js": "never"
      }
    ],
    "no-unused-vars": "warn",
    "class-methods-use-this": "warn"
  },
  "settings": {
    "import/parsers": {
      "@typescript-eslint/parser": [".ts", ".tsx", ".d.ts"]
    },
    "import/extensions": [".js", ".ts", ".d.ts"],
    "import/resolver": {
      "node": {
        "extensions": [".js", ".jsx", ".ts", ".tsx", ".d.ts"]
      }
    }
  }
}