Hi. Will the code inside `async {}` block execute even if I didn't call `await` on it? Shouldn't it ...

# coroutines

[Hayk]

Hi. Will the code inside async {} block execute even if I didn't call await on it? Shouldn't it actually start executing when I call await? Or await is just that it awaits for the execution to finish and doesn't mean that it shouldn't execute without await? Just without await it becomes redundant and behaves like launch not paying attention to the return type)

[Sam]

Yes, by default the code inside async will start right away. There is an optional parameter you can pass to the async function if you want to change that, though.

[Sam]

await is just there so you can get the result (or exception, in case of failure). If you don't need a result, you're correct that you can just use launch.

[Dmitry Khalanskiy [JB]]

There is an optional parameter you can pass to the async function if you want to change that, though.

It's likely that you don't, though: https://github.com/Kotlin/kotlinx.coroutines/issues/4202 If you do, please let us know in the comments!