Can you explain the concept of LaunchEffect and what its main idea is?

LaunchEffect is an effect in Jetpack Compose that runs a block of code once when the composition is first launched or when the key changes.

The main idea is to perform side effects that should happen only once, such as launching a coroutine to load data, subscribing to events, or initialization.

Example of usage:

LaunchedEffect(key1 = someId) {
    // This code will run on first launch and when someId changes
    val data = repository.loadData(someId)
    viewModel.updateData(data)
}

Thus, LaunchEffect helps manage the lifecycle of side effects in Compose, ensuring they are executed at the right time and not repeated unnecessarily.