How to cancel/unsubscribe from coroutines Flow

Question

I notice a strange behavior when trying to prematurely cancel from a Flow. Take a look at the following example.

This is a simple flow that emits integer values

Answer 1

I came up with this recently

it seems that it will only actually cancel if it reaches a suspending point and in your code that emits there is no such point

to solve this either add yield() between emissions or some other suspending function like delay(100)