What is a global scope of coroutines and in what cases is it used?

The global scope of coroutines (GlobalScope) in Kotlin is a scope that lives for the entire duration of the application and is not tied to any specific component lifecycle.

It is used when you need to launch a coroutine that should operate independently of the lifecycle of UI components or other objects, for example, for background tasks that should not be canceled when an activity or fragment is destroyed.

However, using GlobalScope requires caution, as coroutines in this scope are not automatically canceled and can lead to memory leaks or execution of unnecessary operations.

Example of launching a coroutine in the global scope:

GlobalScope.launch {
    // Long-running task
}

It is recommended to use more local scopes associated with component lifecycles, such as viewModelScope or lifecycleScope.