kotlinx.coroutines

# kotlinx.coroutines 

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Library support for Kotlin coroutines with [multiplatform](#multiplatform) support.
This is a companion version for the Kotlin `2.2.20` release.

```kotlin
suspend fun main() = coroutineScope {
    launch { 
       delay(1.seconds)
       println("Kotlin Coroutines World!") 
    }
    println("Hello")
}
```

> Play with coroutines online [here](https://pl.kotl.in/xdbDf0NNk)

## Modules

* [core](kotlinx-coroutines-core/README.md) — common coroutines across all platforms:
  * [launch] and [async] coroutine builders returning [Job] and [Deferred] light-weight futures with cancellation support;
  * [Dispatchers] object with [Main][Dispatchers.Main] dispatcher for Android/Swing/JavaFx (which require the corresponding artifacts in runtime) and Darwin (included out of the box), and [Default][Dispatchers.Default] dispatcher for background coroutines;
  * [delay] and [yield] top-level suspending functions;
  * [Flow] — cold asynchronous stream with [flow][_flow] builder and comprehensive operator set ([filter], [map], etc);
  * [Channel], [Mutex], and [Semaphore] communication and synchronization primitives;
  * [coroutineScope][_coroutineScope], [supervisorScope][_supervisorScope], [withContext], and [withTimeout] scope builders;
  * [MainScope()] for Android and UI applications;
  * [SupervisorJob()] and [CoroutineExceptionHandler] for supervision of coroutines hierarchies;
  * [select] expression support and more.
* [core/jvm](kotlinx-coroutines-core/jvm/) — additional core features available on Kotlin/JVM:
  * [Dispatchers.IO] dispatcher for blocking coroutines;
  * [Executor.asCoroutineDispatcher][asCoroutineDispatcher] extension, custom thread pools, and more;
  * Integrations with `CompletableFuture` and JVM-specific extensions.
* [core/web](kotlinx-coroutines-core/web/) — additional core features available on Kotlin/JS and Kotlin/Wasm/JS:
  * Integration with `Promise` via `Promise.await` and [promise] builder.
* [core/js](kotlinx-coroutines-core/js/) — additional core featur