What result does the launch function return?

In Android, the launch function from coroutines (for example, from CoroutineScope) returns an object of type Job. This object represents a launched coroutine and allows managing its lifecycle — for instance, canceling execution or tracking its state.

Example:

val job = CoroutineScope(Dispatchers.Main).launch {
    // asynchronous work
}

// You can cancel the coroutine
job.cancel()