Are there any possibilities to use compose-web on ...

# compose-web

[Łukasz Lendzion]

Are there any possibilities to use compose-web on older chromium version like 56+?

[Artem Kobzar]

Yes, with Kotlin/JS instead of Kotlin/Wasm

[spierce7]

How is JS support? I know its slower

[Artem Kobzar]

It's a bit slower and should work 99% the same as Wasm.
We are working on runtime performance improvements, so I hope it will not work tragically slower.

[spierce7]

Last I saw WASM was able to maintain a steady 60 FPS, but JS was struggling to maintain 30. This was more than a year ago. Has that improved?

[Łukasz Lendzion]

but can i use compose ui in kotlin/js except wasm?

[Artem Kobzar]

Yes, sure. Compose for Web works for both Kotlin/Wasm and Kotlin/JS

[Łukasz Lendzion]

okay, ill check it, thanks

[louiscad]

@spierce7 Depends on your code!
I have some Kotlin/JS projects that work at 60 or 120fps in the browser.

[Łukasz Lendzion]

i got an error in webOS 4.x chromium 56 ->

[Łukasz Lendzion]

can we use compose without wasm?

[Łukasz Lendzion]

@louiscad if u can, send some samples

[Artem Kobzar]

https://github.com/JSMonk/make-friends-with-kotlin-devs/tree/step-5-share-client-application/composeWebApp

[Artem Kobzar]

Kotlin/JS based compose for web application

[Łukasz Lendzion]

yeah, but onWasmReady is not working on chromium 56

[Łukasz Lendzion]

sure?

[Artem Kobzar]

https://github.com/JSMonk/make-friends-with-kotlin-devs/tree/step-5-share-client-application/common/src

[Artem Kobzar]

https://github.com/JetBrains/skiko/blob/c3a900847e861ebb847e13fb2a4b8ce6c454cdbd/skiko/src/jsWasmMain/resources/setup.js#L11

[Artem Kobzar]

I don't see why it should not work

[Artem Kobzar]

Oh, I see. https://caniuse.com/wasm
Wasm is under the flag for the chromium <57

[Artem Kobzar]

So, it means that you can't run a Compose App (even on Kotlin/JS) without running the browser with flag (to enable it)

[Artem Kobzar]

But for 57+ - you can

[Łukasz Lendzion]

okayyyy

[Artem Kobzar]

Sorry 😓

[Łukasz Lendzion]

are there any possibilities to set this flag from app code?