Confusion about Composables

[abitwhy]

What's the stateful logic of the useEventListener in Mouse Tracker Example? It looks like a normal function.

[splincool]

In my opinion, Composables are usual normal functions. This example shows us how easy we can divide some code logic into small composables(functions) and reuse this logic into components or other composables.

[AloisSeckar]

I'd say it is because you are altering the target object by adding/removing event listener to it.

But TBH, so far I am struggling to divide composables/utils properly in my main work project. It is fairly easy to mix them up during development and then quite hard to split them again...