GWt TeaVM comparison

[Tim Macpherson]

Maybe interesting for some:

.

I'm using TeaVM. Main problem is source map debugging will  usually descend into transpiled js, GWT doesn't have that problem otherwise ok it it lasts.

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[Craig Mitchell]

Do you use it to compile to JavaScript or WebAssembly?

I'd love to compile Java to WebAssembly, but I'm too nervous about the edge cases.

[Dmitrii Tikhomirov]

You can use GraalVM to compile Java to WebAssembly.

 The main limitation is multithreading; almost everything else works. 

If you need a very small WASM binary, you can use J2CL. 

I’ve actually already added WASM support to the j2cl-maven-plugin, but I still haven’t gotten around to publishing it.

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[Craig Mitchell]

I looked at GraalVM as a JVM replacement, but it wouldn't work with the libraries I use (Google Datastore mainly).  I didn't realise it could also be used to compile WebAssembly.  Thanks, will check it out!

Will also check out J2CL for Web Assembly.  Publish the plugin!  :-D

[Tim Macpherson]

I compile to JavaScript, I guess if I was compiling to WASM I wouldn't have the source map problems, no WASM code for it to keep stepping into. Other than that, I think I read WASM is used a lot for things like offloading web scraping to distributed devices,  but presumably where there's very demanding processing it's  more efficient. I do a lot of D3 in TS, I presume WASM can bridge to that so it's worth considering 

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