Anh Quân

Warning: A big difference between launch and async is how they handle exceptions. async expects that you will eventually call await to get a result (or exception) so it won’t throw exceptions by default. That means if you use async to start a new coroutine it will silently drop exceptions.

A CoroutineScope keeps track of all your coroutines, and it can cancel all of the coroutines started in it.

Well written suspend functions are always safe to call from the main thread (or main-safe).