.eslintrc.json

{
  "env": {
    "browser": true,
    "es2021": true,
    "jest": true
  },
  "extends": [
    "eslint:recommended",
    "plugin:@typescript-eslint/recommended",
    "airbnb-base",
    "airbnb-base/legacy",
    "plugin:import/typescript",
    "prettier"
  ],
  "parser": "@typescript-eslint/parser",
  "parserOptions": {
    "ecmaVersion": 12,
    "sourceType": "module"
  },
  "plugins": ["@typescript-eslint", "import"],
  "rules": {
    "@typescript-eslint/no-var-requires": 0,
    "import/no-extraneous-dependencies": [
      "error",
      { "devDependencies": ["**/*.test.ts", "**/*.test.tsx"] }
    ],
    "import/extensions": [
      "error",
      "ignorePackages",
      {
        "js": "never",
        "jsx": "never",
        "ts": "never",
        "tsx": "never"
      }
    ],
    "no-shadow": "off",
    "@typescript-eslint/no-shadow": ["error"],
    "no-unused-vars": "off",
    "@typescript-eslint/no-unused-vars": "error",
    "no-underscore-dangle": "off"
  }
}