this post was submitted on 14 Mar 2025
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Programming
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I feel this should be obvious to anyone who knows anything about programming, because typescript is just a development tool not a runtime.
I... Don't know about that. I mean, you could implement a browser or even a runtime library that used typescript (or a subset thereof) to directly write LLVM; it would take a lot of work, but typescript doesn't have to just be for transpiling.
But there is no such implementation AFAIK? How is it making Typescript faster if it's a completely new implementation?
But certainly, in theory it could become unshackled from JavaScript. Have there been any serious attempts to do so though?
There is a serious attempt for that actually: https://www.assemblyscript.org/
It doesn’t offer full compatibility with the regular TypeScript though, despite being very similar.
Nice! Thanks for sharing
Well a new implementation running TypeScript could be 10x faster than the traditional e.g., NodeJS implementation or something; it's not unusual for things to be compared in such a way.
No idea! :)
That would be very difficult because Typescript isn't sound.
TypeScript is a language, and traditionally languages are considered separate from their implementations. When I first saw the headline I hoped maybe it meant a non-JS runtime for compiled TS, and I'm well aware of the difference. Yes, that would be a much larger undertaking than porting the compiler to a new language, but the headline doesn't indicate how large a project this is, and Microsoft certainly has the resources to write a new backend (even a native-code one) for the TS compiler.