Can I use coroutines in Kotlin when targeting JavaScript?

Question

Is it possible to launch any coroutines when targeting JavaScript? It doesn't like any of the usual ways like async{}

Example on: https://github.com/thigg/no-kotlinx-in-js

Czarina

Answer 1

Yes, you can. Take a look at example-frontend-js — frontend application written in Kotlin/JS that uses coroutines to implement animations in imperative style.

Don't forget to add a dependency on org.jetbrains.kotlinx:kotlinx-coroutines-core in your Gradle configs.

Inopportune

Im on Kotlin 1.3.41. I created a Kotlin JS Project with intellij idea and it says there is no package import kotlinx.coroutines.*. Did I get any config wrong? – Czarina

Can't spot differences so far, they seem simply to include the stdlib, nothing else. I'm doing the same as far as I can see. I will build a minimal failing example... – Czarina

I created a minimal-not-working-example: github.com/thigg/no-kotlinx-in-js maybe you can help me to spot what I am doing wrong? – Czarina

You don't have all the dependencies they have in a sample project. Take a look at parent's build.gradle: github.com/Kotlin/kotlinx.coroutines/blob/master/…. That allprojects configure additional dependencies and plugins. – Inopportune

Yes, it was the missing import. Thanks. Will you update your answer? – Czarina

The link in this answer is now broken. It used to be a helpful example. Where did it go? – Joannjoanna