tsconfig.json

{
  "compilerOptions": {
    "target": "es5",
    "lib": ["dom", "dom.iterable", "esnext"],
    "strictFunctionTypes": false,
    "allowUnreachableCode": false,
    "allowUnusedLabels": false,
    "allowJs": true,
    "skipLibCheck": true,
    "noEmitHelpers": false,
    "noUnusedLocals": true,
    "removeComments": false,
    "sourceMap": true,
    "importHelpers": true,
    "noFallthroughCasesInSwitch": true,
    "noUnusedParameters": true,
    "esModuleInterop": true,
    "allowSyntheticDefaultImports": true,
    "strict": true,
    "forceConsistentCasingInFileNames": true,
    "module": "esnext",
    "moduleResolution": "node",
    "resolveJsonModule": true,
    "isolatedModules": true,
    "noEmit": true,
    "jsx": "preserve",
    "noEmitOnError": false
  },
  "include": ["src"],
  "exclude": [
    "build",
    "node_modules",
    "prerender-metadata.js",
    "src/metadata.js",
    "src/serviceWorker.ts"
  ]
}