tsconfig.json

{
  "compilerOptions": {
    // enable latest features
    
    "lib": ["DOM", "DOM.Iterable","ESNext"],
    "target": "ESNext",
    "module": "ESNext",
    "moduleDetection": "force",
    "allowJs": true, // allow importing `.js` from `.ts`
    "types": ["jest", "node"],

    // Bundler mode
    "moduleResolution": "node",
    //"allowImportingTsExtensions": true,
    //"verbatimModuleSyntax": false,
    "forceConsistentCasingInFileNames": true,
    "noEmit": true,
    "resolveJsonModule": true,
    "isolatedModules": true,
    "noUnusedLocals": false,
    "noUnusedParameters": false,

    // Best practices
    "strict": true,
    "skipLibCheck": true,

    "noFallthroughCasesInSwitch": true,

    // Some stricter flags
    "useUnknownInCatchVariables": true,
    "noPropertyAccessFromIndexSignature": true,

    "jsx": "react-jsx"
  },
  "include": [
    "./src/**/*.ts",
    "./pic/**/*.ts",
    "./pic/global-setup.ts",
    "./pic/global-teardown.ts",
    "./pic/types.d.ts"
  ]
}