[thegreatpeter]

I have a hard time believing that. We have 10k lines of typescript and that take forever to compile compared to 5x more of the ReasonML code we have that compiles instantly

[petersellers]

You have a hard time believing that their team experienced more happiness and productivity with TS...because your ReasonML code compiles a lot faster than your TS code?

[kohtatsu]

I've actually been (very) wary of adopting TypeScript once I learned of the multi-second compile times, even for tiny projects.

I had actually been watching Deno in case they solved any of that.

[goostavos]

They become really frustrating as the project grows in size. Personally, it becomes really difficult to maintain productivity. As compile times tick up, I start bouncing over to other tabs rather than just twiddling my thumbs starring at a terminal. Then I realize I've been on Reddit for a half-hour.

I recently watched this talk by Johnathan Blow[0] where he talks about quality of life in programming languages and spends a fair amount of time talking about compile times and their effects.

I think we collectively need to re-align on being performance focused. Tools are simultaneously amazing but crummy at the same time.

[0] https://www.youtube.com/watch?v=uZgbKrDEzAs&t=2s

[kiliancs]

I don't love the compile times, but I'll also say with TypeScript I tend to check the browser that often. TS also means simpler refactoring, for example.

Note also: * type checks can run in parallel, so they won't block your other build block * the tsc has been making gradual improvements to performance and techniques to improve compilation and type checking * there are speedy alternatives to the TypeScript compiler (tsc) (eg: https://sucrase.io) for transpilation

[ithrow]

Much faster compiles times sounds like a good reason to me ;)

[kiliancs]

I wasn't comparing to ReasonML, which I'm convinced is a very good choice.