.eslintrc.json

{
  "env": {
    "browser": true,
    "es6": true,
    "node": true
  },
  "extends": [
    "eslint:recommended",
    "plugin:@typescript-eslint/eslint-recommended",
    "plugin:@typescript-eslint/recommended",
    "plugin:import/errors",
    "plugin:import/warnings"
  ],
  "parser": "@typescript-eslint/parser",
  "plugins": ["react"],
  "parserOptions": {
    "ecmaVersion": 2018,
    "sourceType": "module"
  },
  "rules": {
    "react/jsx-filename-extension": [1, { "extensions": [".ts", ".tsx"] }],
    "no-unused-vars": "warn",
    "no-unused-expressions": "warn",
    "quotes": ["warn", "double"],
    "react/jsx-uses-vars": "error",
    "react/jsx-uses-react": "error",
    "@typescript-eslint/explicit-function-return-type": "off",
    "@typescript-eslint/explicit-module-boundary-types": "off"
  },
  "settings": {
    "import/resolver": {
      "node": {
        "extensions": [".js", ".jsx", ".ts", ".tsx"]
      }
    }
  }
}