.eslintrc.json

{
  "extends": ["eslint:recommended", "plugin:prettier/recommended"],
  "plugins": ["@typescript-eslint", "jest"],
  "parser": "@typescript-eslint/parser",
  "parserOptions": {
    "sourceType": "module",
    "warnOnUnsupportedTypeScriptVersion": false
  },
  "rules": {
    "@typescript-eslint/adjacent-overload-signatures": "error",
    "prettier/prettier": [
      "error",
      {
        "singleQuote": true,
        "semi": false
      }
    ],
    "yoda": "off",
    "no-unused-vars": "off",
    "@typescript-eslint/no-unused-vars": "error",
    "jest/no-focused-tests": "error",
    "jest/no-identical-title": "error",
    "jest/prefer-to-have-length": "warn",
    "jest/valid-expect": "error",
    "jest/consistent-test-it": ["error", { "fn": "it" }]
  },
  "globals": {
    "fetch": false,
    "module": true
  },
  "env": {
    "browser": true,
    "jest/globals": true
  }
}