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We use Kotlin JS in production and like it quite well. It enabled us to easily share code with the Kotlin backend and Typescript frontend. Kotlin also generates

We use Kotlin JS in production and like it quite well. It enabled us to easily share code with the Kotlin backend and Typescript frontend. Kotlin also generates Typescript type definitions which enables us to easily call those Kotlin methods from typescript. The multiplatform vision allows us to compile/share natively code for mobile platforms too. I also love to see the quickly evolving Jetpack Compose which would enable to write natively executed UI code on most major platforms. (iOS is not there yet and likely depends on new memory model which is currently being developed.)

jillesvangurp 5y ago
Same here. To be fair, it has some rough edges as it is still a bit cutting edge. But it mostly works great. Worth a look if you need to share code between IOS, Android, Web, and server side. We use the Fritz2 ui framework which has been built from the ground up with Kotlin-js. It's a reactive framework desigbed around Kotlin features like co-routines and flows. It comes with a nice component framework, great documentation, and has been rock solid for us. Worth a look if you are looking for something different. We took some risk by betting on this admittedly risky setup one and a half years ago when I had a few junior Android developers that knew Kotlin and we needed a webapp in a hurry. I ran this as an experiment for a few weeks and then realized that I had nothing to worry about: it's fine. We were hitting all our goals. By now we are super productive with this setup and we are adding lots of features, ui polish, etc. every week. Maybe we'll have to switch at some point but so far we're good on not ending up with the usual mess of technical debt that I've come to associate with javascript projects. Jetpack Compose looks promising. Once IOS support lands, it will be a strong competitor to Flutter and React Native. If you can do without IOS support, it's usable right now. I'm guessing IOS support would be at least another one or two years out. Multiplatform is great and getting more usable with every release. We have an API client and some other functionality that we use across JVM on our server and kotlin-js. It should just work for kotlin native, IOS, and android as well but we have not used that so far. I'm kind of looking forward to the web assembly compiler becoming usable as well.

jillesvangurp 5y ago

Same here. To be fair, it has some rough edges as it is still a bit cutting edge. But it mostly works great. Worth a look if you need to share code between IOS, Android, Web, and server side. We use the Fritz2 ui framework which has been built from the ground up with Kotlin-js. It's a reactive framework desigbed around Kotlin features like co-routines and flows. It comes with a nice component framework, great documentation, and has been rock solid for us. Worth a look if you are looking for something different. We took some risk by betting on this admittedly risky setup one and a half years ago when I had a few junior Android developers that knew Kotlin and we needed a webapp in a hurry. I ran this as an experiment for a few weeks and then realized that I had nothing to worry about: it's fine. We were hitting all our goals. By now we are super productive with this setup and we are adding lots of features, ui polish, etc. every week. Maybe we'll have to switch at some point but so far we're good on not ending up with the usual mess of technical debt that I've come to associate with javascript projects. Jetpack Compose looks promising. Once IOS support lands, it will be a strong competitor to Flutter and React Native. If you can do without IOS support, it's usable right now. I'm guessing IOS support would be at least another one or two years out. Multiplatform is great and getting more usable with every release. We have an API client and some other functionality that we use across JVM on our server and kotlin-js. It should just work for kotlin native, IOS, and android as well but we have not used that so far. I'm kind of looking forward to the web assembly compiler becoming usable as well.