.eslintrc.js

module.exports = {
  "extends": [
    "eslint:recommended",
    "plugin:prettier/recommended"
  ],
  "plugins": [
    "@typescript-eslint",
    "jest"
  ],
  "parser": "@typescript-eslint/parser",
  "parserOptions": {
    "sourceType": "module",
    "project": "./tsconfig.json"
  },
  "rules": {
    "@typescript-eslint/adjacent-overload-signatures": "error",
    "no-unused-vars": "off",
    "@typescript-eslint/no-unused-vars": ["error", { "argsIgnorePattern": "^_.*" }],
    "jest/no-disabled-tests": "warn",
    "jest/no-focused-tests": "error",
    "jest/no-identical-title": "error",
    "jest/prefer-to-have-length": "warn",
    "jest/valid-expect": "error"
  },
  "env": {
    "browser": true,
    "node": false,
    "es6": true,
    "jest/globals": true
  },
  "globals": {
    "chrome": "readonly",
    "globalThis": "readonly",
    "spyOn": "readonly"
  }
}