Depending on how it pans out, it’s either not useful enough. Who the hell doesn’t use namespaces or enums. Or - as
These constructs are not in the scope of this proposal, but could be added by separate TC39 proposals.
implies - a door opener to outsource TypeScripts problem unto other peoples and not to investing into improving WebAssembly. That’s just MS being lazy and making their problems other peoples problems.
I feel like this would be the ideal scenario: things working right out of the box without needing a compile step or additional tooling.
It’s just annotations. No proposed semantics of a type system which your browser could check on its own.
Yeah it’s interesting because JS is interpreted, not compiled. The proposal allows for type annotations in the syntax but no actual interpreter consequences. On the one hand that makes sense because otherwise you’re in the territory of runtime type-checking which would be a huge performance hit and would sort of defeat the purpose of static types anyway. But that means you still have to rely on your IDE or a linter for this to be useful.
I don’t see any practical use case for it as is as anyone wanting to use them would want the full TS feature set anyways, but I could see it being a good step forward for more meaningful features to be added in the future.
That’s not a positive, though.
Depending on how it pans out, it’s either not useful enough. Who the hell doesn’t use namespaces or enums. Or - as
implies - a door opener to outsource TypeScripts problem unto other peoples and not to investing into improving WebAssembly. That’s just MS being lazy and making their problems other peoples problems.
It’s just annotations. No proposed semantics of a type system which your browser could check on its own.
Yeah it’s interesting because JS is interpreted, not compiled. The proposal allows for type annotations in the syntax but no actual interpreter consequences. On the one hand that makes sense because otherwise you’re in the territory of runtime type-checking which would be a huge performance hit and would sort of defeat the purpose of static types anyway. But that means you still have to rely on your IDE or a linter for this to be useful.
I don’t see any practical use case for it as is as anyone wanting to use them would want the full TS feature set anyways, but I could see it being a good step forward for more meaningful features to be added in the future.
I think you are right. And that is unfortunate.