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kotlinlang

```    val job = launch {
        println("Do something")
    }
    
    job.join()

    assertTrue(job.isCompleted)
    assertTrue(!job.isCancelled)
    println("isCompleted ${job.isCompleted}, isCancelled ${job.isCancelled}") 
    //output: isCompleted true, isCancelled false```

But can I use `job` as a life cycle then ?

you can call `job.cancel()` and cancel coroutine

```
    val job = launch {
        println("Do something")
        delay(100)
        println ("Do something else")
    }

    delay(50)
    job.cancel()

    println("isCompleted ${job.isCompleted}, isCancelled ${job.isCancelled}")
```

in this case we cancel coroutine:
```
//output: isCompleted true, isCancelled true
```