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

Commencez par retracer où Node.js gère le champ type de package.json et émet l’avertissement MODULE_TYPELESS_PACKAGE_JSON ; l’issue ne nomme aucun fichier source ni aucun test, il faut donc d’abord cartographier ce parcours et sa couverture existante. Définissez et testez le comportement d’avertissement ou d’erreur choisi pour les valeurs autres que commonjs et module, tout en conservant ces valeurs canoniques.