News for hackers. Stuff that matters.

A comment on The Two Factions of C++. Parent comment

Re:The Two Factions of C++ by EE84M3i on Monday November 25, 2024 @12:53PM (#42238375)
> ts/js is were ts is just js with types. You can comment out the types and it just runs.

Is this true in the general case? I thought there were typescript features that didn't have direct JavaScript alternatives, for example enums.

[ Parent | on HN ]
Re:The Two Factions of C++ by paulddraper on Monday November 25, 2024 @01:06PM (#42238488)
Enums and namespaces are the only runtime features of TypeScript.

So, yes, you can't just strip types, but it's close.

[ Parent | on HN ]
Re:The Two Factions of C++ by EE84M3i on Monday November 25, 2024 @01:37PM (#42238799)
Is there a comprehensive list of such incompatibilities documented somewhere?
[ Parent | on HN ]
Re:The Two Factions of C++ by judofyr on Monday November 25, 2024 @04:24PM (#42240362)
https://www.typescriptlang.org/tsconfig/#isolatedModules
[ Parent | on HN ]
Re:The Two Factions of C++ by paulddraper on Monday November 25, 2024 @05:08PM (#42240657)
That's not the same.

That guarantees that the types do not determine the output (e.g. no const enums), not that you can "strip" types to get the same output.

[ Parent | on HN ]
Re:The Two Factions of C++ by paulddraper on Monday November 25, 2024 @05:07PM (#42240647)
Not that I'm aware of.

Decorators would be another example. (Though they have always been marked experimental.)

And of course JSX, but that's not a TypeScript invention.

[ Parent | on HN ]