.eslintrc.json

{
  "extends": [
    "eslint:recommended",
    "plugin:import/recommended",
    "plugin:jsx-a11y/recommended",
    "plugin:react/recommended",
    "plugin:react/jsx-runtime",
    "plugin:react-hooks/recommended",
    "prettier"
  ],
  "overrides": [
    {
      // enable eslint-plugin-testing-library rules or preset only for matching files!
      "files": ["**/__tests__/**/*.[jt]s?(x)", "**/?(*.)+(spec|test).[jt]s?(x)"],
      "extends": [
        "plugin:jest/recommended",
        "plugin:jest-dom/recommended",
        "plugin:testing-library/react"
      ]
    },
    {
      "files": ["**/*.ts?(x)"],
      "parser": "@typescript-eslint/parser",
      "extends": ["plugin:@typescript-eslint/recommended", "plugin:import/typescript"]
    }
  ],
  "rules": {
    // for testing if eslint works properly,
    // feel free to remove this if you do not need it
    "import/no-unused-modules": [1, { "unusedExports": true }]
  },
  "settings": {
    "import/parsers": {
      "@typescript-eslint/parser": [".ts", ".tsx"]
    },
    "import/resolver": {
      "typescript": {}
    },
    "react": {
      "version": "detect"
    }
  }
}