tsconfig.json

// {
//   "compilerOptions": {
//     "target": "ES6",
//     "module": "ESNext",
//     "strict": true,
//     "esModuleInterop": true,
//     "declaration": true,
//     "declarationDir": "./",
//     // "outDir": "./dist",
//     // "rootDir": "./src"
//   },
//   "include": ["src/**/*.ts"],
//   "exclude": ["node_modules", "src/example"]
// }

{
  "compilerOptions": {
    "target": "ES2020",
    "useDefineForClassFields": true,
    "module": "ESNext",
    "lib": ["ES2020", "DOM", "DOM.Iterable"],
    "skipLibCheck": true,

    "moduleResolution": "bundler",
    "allowImportingTsExtensions": true,
    "resolveJsonModule": true,
    "isolatedModules": true,
    "moduleDetection": "force",
    "noEmit": true,

    "strict": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "noFallthroughCasesInSwitch": true
  },
  "include": ["src"]
}