.eslintrc.js

module.exports = {
  "env": {
    "browser": true,
    "es6": true,
    "jest": true,
    "node": true
  },
  "extends": [
    "eslint:recommended",
    "plugin:@typescript-eslint/eslint-recommended",
    "plugin:@typescript-eslint/recommended",
    "plugin:@typescript-eslint/recommended-requiring-type-checking",
    "airbnb",
    "plugin:import/errors",
    "plugin:import/warnings",
    "plugin:import/typescript",
    "plugin:prettier/recommended"/*,
    "prettier/@typescript-eslint"*/
  ],
  "globals": {
    "Atomics": "readonly",
    "SharedArrayBuffer": "readonly"
  },
  "parser": "@typescript-eslint/parser",
  "parserOptions": {
    "ecmaVersion": 2018,
    "sourceType": "module"
  },
  "plugins": [
    "@typescript-eslint"
  ],
  "rules": {
    "prettier/prettier": [
      "error", {
        "singleQuote": true,
        "semi": false
      }
    ],
    // https://stackoverflow.com/a/59268871/567525
    "import/extensions": [
      "error",
    "ignorePackages",
      {
        "js": "never",
        "jsx": "never",
        "ts": "never",
        "tsx": "never"
      }
    ]
  },
  "settings": {
    "import/resolver": {
      "node": {
        "extensions": [".js", ".jsx", ".ts", ".tsx"]
      }
    }
  }
}