tsconfig.json

{
  "compilerOptions": {
    "allowJs": false,
    "allowSyntheticDefaultImports": true,
    "baseUrl": ".",
    /*
      Default value `false` was changed because:
      - It breaks `identity-obj-proxy` work
        https://github.com/keyz/identity-obj-proxy/issues/9#issuecomment-439625933
    */
    "esModuleInterop": true,
    "forceConsistentCasingInFileNames": true,
    "isolatedModules": true,
    /*
      Default value `react` was changed because:
      - React 17+ is used, which doesn't require React to be in scope
      - TypeScript doesn't throw errors in this case
    */
    "jsx": "react-jsx",
    "lib": ["DOM", "DOM.Iterable", "ESNext"],
    "module": "commonjs",
    "moduleResolution": "Node",
    "resolveJsonModule": true,
    "strict": true,
    "target": "ES5",
    "noEmitOnError": true,
    "sourceMap": true,
    "skipLibCheck": true
  },
  "exclude": ["node_modules"]
}