This example was built with the official Webpack guides.
Run with npm run build and see error.
If you want to see a working example, run npm run esbuild instead to use esbuild.
You can even run deno index.ts or ts-node-esm index.ts to see Deno and TS-Node working with the code as expected.
To see an entire workflow which is working right now, try npm run node, which will use esbuild to bundle and NodeJS to execute.