.eslintrc

{
  "env": {
    "node": true
  },
  "rules": {
    "no-shadow": "error",
    "curly": "error",
    "brace-style": "error",
    "no-debugger": "error",
    "prettier/prettier": ["error", { "singleQuote": true }],
    "jsx-a11y/href-no-hash": "off",
    "jsx-a11y/anchor-is-valid": "off",
    "no-var": "error",
    "no-irregular-whitespace": "error",
    "no-else-return": "error",
    "no-fallthrough": "error",
    "default-case": "error",
    "no-unused-vars": "error",
    "no-unused-expressions": "error",
    "no-nested-ternary": "error",
    "no-unneeded-ternary": "error",
    "no-useless-rename": "error",
    "no-useless-return": "error",
    "prefer-const": "error",
    "prefer-template": "error",
    "object-shorthand": ["error", "always"],
    "security/detect-object-injection": "off",
    "node/no-missing-require": [
      "error",
      { "tryExtensions": [".js", ".json", ".ts"] }
    ],
    "no-use-before-define": "error",
    "no-extra-semi": "off"
  },
  "parserOptions": { "ecmaVersion": 10 },
  "plugins": ["node", "security", "prettier"],
  "extends": [
    "prettier",
    "eslint:recommended",
    "plugin:node/recommended",
    "plugin:security/recommended"
  ],
  "overrides": [
    {
      "files": ["**/*.ts"],
      "env": { "node": true },
      "extends": [
        "plugin:@typescript-eslint/eslint-recommended",
        "plugin:@typescript-eslint/recommended"
      ],
      "parser": "@typescript-eslint/parser",
      "parserOptions": { "ecmaVersion": 10 },
      "plugins": ["@typescript-eslint"],
      "rules": {
        "node/no-missing-import": "off",
        "node/no-unsupported-features/es-syntax": "off",
        "security/detect-object-injection": "off",
        "@typescript-eslint/explicit-module-boundary-types": "off",
        "no-shadow": "off",
        "@typescript-eslint/no-shadow": ["error"]
      }
    }
  ]
}