Is there a difference between `async(<http://Dispa...

# coroutines

[reactormonk]

Is there a difference between async(<http://Dispatchers.IO|Dispatchers.IO>) { ... }.await() and withContext(<http://Dispatchers.IO|Dispatchers.IO>) { ... }? And how can I ensure they don't run on the main thread (hello Android)?

[jw]

`async`/`await` creates a new coroutine, withContext moves the current coroutine

[Sam]

Is there a difference…?

Using async with an immediate await() doesn't make a lot of sense and isn't something I'd ever do deliberately. If you write that, IntelliJ IDEA will suggest you change it to the second version, with withContext.

And how can I ensure they don't run on the main thread?

By using <http://Dispatchers.IO|Dispatchers.IO>, you are telling it not to run on the main thread.

[jw]

Otherwise both are effective for doing work off of the main thread.

[reactormonk]

Hm, so something different escapes to the main thread