I have written a post about JAWSM, my JavaScript to WebAssembly compiler: https://itsallaboutthebit.com/jawsm/. Long story short: I now implemented all of the JS semantics (scopes, prototypal inheritance, async/await, generators) and it passes 25% of Ecma262 spec test suite. - ThreadSky

drogus.bsky.social • 12 days ago

I have written a post about JAWSM, my JavaScript to WebAssembly compiler: https://itsallaboutthebit.com/jawsm/. Long story short: I now implemented all of the JS semantics (scopes, prototypal inheritance, async/await, generators) and it passes 25% of Ecma262 spec test suite.

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pfrazee.com•11 days ago

How’s it perform?

drogus.bsky.social•11 days ago

It’s too early to do any meaningful benchmarks in my opinion. Once it’s mostly compatible with the spec, it might make sense to look into it. It will definitely be slower than advanced engines like V8, especially with JIT enabled

handle.invalid•11 days ago

then why do it?

samual.uk•11 days ago

https://justforfunnoreally.dev/

drogus.bsky.social•11 days ago

There are a lot of scenarios where WASM makes sense even if it's slower than a native implementation, mainly in context of safe execution of third party code and easy integration of components written in different languages - think extensions, embedded functions etc.

handle.invalid•10 days ago

usually that role tends to be as supporting libraries to JavaScript applications

but yes, definitely

for example, I love the tiny rebellion of bringing JPEG-XL to Chromium based browsers

PGLite lets you run PostreSQL in the client, which us wild

NodeJS running in StackBlitz

WASM is wild 😄✌️

handle.invalid•10 days ago

in practice, it's just more of a C/C++ runtime and less a platform for programming

it's less commonly (very rarely) used to actually build programs

there are a few exceptions like Figma, but it's not something you hear a lot of teams really using to build actual applications

(is it?)

drogus.bsky.social•10 days ago

> usually that role tends to be as supporting libraries to JavaScript applications

In the browser, yes, outside of the browser, I'd say no. There are a lot of solutions using WASM that could potentially benefit from scripting capabilities. https://spacetimedb.com/, https://www.fluvio.io/, https://github.com/drogus/crows

ashley-c.bsky.social•11 days ago

Nice! Reminds me of https://porffor.dev/

drogus.bsky.social•11 days ago

Yes, it's a very similar concept. The biggest difference between the two is that porffor aims to achieve the goal without WASM GC. It will be definitely interesting to compare the projects once both are close to passing the full spec.

hotbloodedheroine.petplay.fi•6 days ago

now just need someone to do typescript too

drogus.bsky.social•12 days ago

If you like the project and you would like to support the development, please consider sponsoring me on GitHub: https://github.com/sponsors/drogus

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