Warn when package.json contains an invalid "type" value

What is the problem this feature will solve?

Valid (meaningful) values are:

• commonjs
• module

I had set CommonJS, and it behaves the same as if type was unset, which is so close to the actual commonjs behavior, that I thought I had set it correctly. But I kept having cases resulting in the MODULE_TYPELESS_PACKAGE_JSON warning, instead of failing hard.

Note that while tsconfig.js ignores case, the canonical version is CommonJS, so I never considered that I was using incorrect case.

What is the feature you are proposing to solve the problem?

Raise warning/error if "type" is set, but value is none of commonjs or module.

What alternatives have you considered?

No response

Comienza rastreando dónde Node.js gestiona el campo type de package.json y emite la advertencia MODULE_TYPELESS_PACKAGE_JSON; el issue no indica ningún archivo fuente ni prueba, así que primero hay que ubicar ese recorrido y su cobertura existente. Define y prueba el comportamiento elegido de advertencia o error para los valores distintos de commonjs y module, conservando esos valores canónicos.