[DanRosenwasser]

Hi all, I work on the TypeScript team. There's already a lot of feedback on the issue itself from users urging the authors not to make this decision, so I will hold back from adding to the noise on that issue. Every team is entitled to make the decisions that they feel are best for them, and I don't think it'd be productive to change anyone's mind in this case.

Instead I'll just mention that I always welcome thoughts on some of the challenges teams encounter when writing in TypeScript. It helps make the language better. If there's anything you often hit, you can comment here, create an issue on the issue tracker, or reach out to me at Daniel <dot> Mylastname <at> microsoft <dot-com>

[jeppester]

In our team it's causing a lot of confusion an inconsistency that types and interfaces overlap 90% in functionality, but have different syntaxes.

You can find many articles trying to explain which is best under which circumstances, but there are no correct answers.

I would wish for TS to deprecate one of the syntaxes (probably interfaces because they read as statements rather than expressions), and instead extend the other with the 10% functionality that would be lost.

For instance a type could be declared as open, to make it possible to reopen and extend it.

[Rapzid]

I even saw a Youtube video recently making a strong case that types are almost always the better option unless you run into a few niche use cases like needing interface merging.

[alexlur]

I’d just like to say thank you for your team’s hard work on TypeScript. I can’t imagine writing JavaScript without TypeScript.

[Rapzid]

Y'all have been ignoring the largest DX issue in TypeScript for years: https://stackoverflow.com/questions/57683303/how-can-i-see-t...

Even as someone who is very proficient in TypeScript, and an advocate, it's a huge PITA having to constantly ctrl+click through large type hierarchies trying to build a mental model of fully resolved types.

[Gigachad]

Typescript has been revolutionary and made me love doing frontend work. It’s solved so many issues with reliability that I’d never suggest using an untyped framework like rails for a new project.