tsconfig.json

{
  "compileOnSave": true,
  "compilerOptions": {
    "allowJs": true,
    // If you're not exporting something by default, then assume that you are.
    "allowSyntheticDefaultImports": true,
    // "baseUrl": "src",
    "checkJs": false,
    // Allows us to generate .d.ts files.
    "declaration": true,
    // Tells Typescript where to place the .d.ts files.
    // In other words, it will put them in dist/cjs/types & dist/esm/types.
    // dist will also contain a dist/index.d.ts (also occurred in Alex Eagleson tutorial).
    "declarationDir": "typings",
    // We will be using Rollup to bundle are javascript files.
    // Thus we don't need Typescript to bundle the javascript files
    // for us.
    "emitDeclarationOnly": true,
    "esModuleInterop": true, // default: true
    // Typescript needs to be instructed to process JSX.
    // Convert JSX into a createElement function call.
    // Ensure that casing is correct in imports.
    "forceConsistentCasingInFileNames": true, // default: true
    "allowArbitraryExtensions": true,
    "module": "ESNEXT", // default: "commonjs"
    // Tell Typescript what process to use to look for modules.
    "moduleResolution": "Node",
    // Tells Typescript where to output the transpiled/bundled code.
    "outDir": "dist", // Or "./dist"
    // "removeComments": true,
    "skipLibCheck": true, // default: true
    // Useful for debugging.
    "sourceMap": true,
    "strict": true, // default: true
    "target": "ESNext"
    
  },
  "include": [
    "src/**/*.ts",
    "src/**/*.tsx",
    "src/**/*.web.ts",
    "src/**/*.native.ts",
    "src/rollup.config.js"
  ],
  "exclude": [
    "node_modules",
    "dist",
    "types",
    "*/**/.d.ts",
    "typings",
    "test",
    "test-react-web-app",
    "test-react-native-app",
    "test-nextjs-app",
    "src/__tests__"
  ]
}