I'm wondering what the use-cases are for tsc as a transpiler, since it seems like almost everyone uses a third-party one. I'd prefer to use tsc instead of relying on an additional dependency, but find it too restrictive. This has me wondering: who does use it?

To be clear: I understand the use-case for tsc as a type-checker, just not as a transpiler.

Edit: I should have specified: this question is about transpiling with tsc for front-end code, not back-end code.

I'm learning typescript and I'm trying to create a script that will execute js files created by tsc. This is my package.json:

{
  "bin": "bin/tutorial.js",
  "scripts": {
    "start": "node bin/tutorial.js",
    "prestart": "npm run build",
    "build": "tsc"
  }

bin/tutorial.js is just a custom js file that I wrote that will execute the compiled js files in lib (tsconfig has outDir set to lib):

#!/usr/bin/env node
require('../lib/tutorial');

I am able to run the script using npm start, since it will build beforehand. However if I clean the lib directory and do 'npx .' then the tsc build will never happen. This means that the lib directory will be empty and my bin/tutorial.js file won't be able to import the compiled js.

How do I ensure that my scripts executed with npx can run the build step beforehand?