.eslintrc.js

module.exports = {
  env: {
    es6: true,
    node: true,
    jest: true,
    browser: true,
  },
  extends: "eslint:recommended",
  globals: {
    JSX: "readonly"
  },
  parser: "@typescript-eslint/parser",
  plugins: ["@typescript-eslint"],
  parserOptions: {
    ecmaVersion: 2017,
    sourceType: "module"
  },
  rules: {
    indent: ["error", 2],
    quotes: ["error", "double"],
    "no-console": "warn",
    "no-unused-vars": "off",
    "@typescript-eslint/no-unused-vars": [
      "error",
      { vars: "all", args: "after-used", ignoreRestSiblings: false },
    ],
    "@typescript-eslint/explicit-function-return-type": "warn", // Consider using explicit annotations for object literals and function return types even when they can be inferred.
    "no-empty": "warn",
  },
};