Hi guys, Does you guys know what the difference between coroutineScope and viewmodelScope?

# coroutines

[Tran Thang]

Hi guys, Does you guys know what the difference between coroutineScope and viewmodelScope?

[Joffrey]

What coroutineScope are you referring to?

[Tran Thang]

Because it see it in a program on github. but i don't know what the coroutineScope in this case. Can you help me resolve this one?

[Tran Thang]

message has been deleted

[Joffrey]

This is the coroutineScope function of kotlinx.coroutines. It is not a variable. It is a suspending function that provides a short-lived coroutine scope in which you can start some coroutines (e.g. for parallel decomposition of work), and waits for all those coroutines to finish before coroutineScope itself completes.

[Joffrey]

viewModelScope, on the other hand, is a property of type CoroutineScope provided by some Android components. It is a coroutine scope whose lifecycle is tied to that of the view model you're using it in. It allows to start coroutines that will be automatically cancelled when the view model is not used anymore.

[Joffrey]

Technically here coroutineScope is not required per se, because launch already provides a scope, but the author wanted to catch exceptions thrown by the network calls done in async { } coroutines. If the async coroutines were started directly in the scope of launch, there would be no way to catch these exceptions.

[Tran Thang]

I got it

[Tran Thang]

Your answer is very easy to understand, thank you so much