JSR Is Not Another Package Manager

Re:JSR Is Not Another Package Manager by crabmusket on Thursday April 25, 2024 @08:50AM (#40156873)

Does JSDoc even have a type checking system? The point of TS is that is actually does something with your declared types. JSDoc is nice... for docs being interpreted by a human. But unless those are used to create red squigglies then it's kind of arbitrary.

I've used JSDoc with TS's type syntax and typechecker in JS files. Which is fine - I find it subjectively uglier but I know some prefer it. But it's still TS that's doing the actual work of determining if all my annotations are compatible when the rubber hits the road.

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Re:JSR Is Not Another Package Manager by mbarneyme on Thursday April 25, 2024 @12:38PM (#40159725)

JSDoc provides the exact same level of type safety as TypeScript, because the TypeScript Language Server/CLI themselves are what does the type checking. Using JSDoc removes the need to transpile your code before executing it. You still want to type-check your code (with a `tsc --noEmit` or similar) in CI, just like you'd run unit tests/a linter/etc.

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Re:JSR Is Not Another Package Manager by crabmusket on Friday April 26, 2024 @09:51PM (#40176387)

Yes, that's my point. JSDoc isn't an alternative to TypeScript if you want your types to actually be checked.

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