What are the advantages and disadvantages of using the objectWillChange.send method in data model update architecture?

The objectWillChange.send method is used in SwiftUI and Combine to explicitly notify subscribers that an object will soon change.

Advantages:

• Allows manual control over the timing of change notifications, which is useful during complex or multiple changes to avoid excessive UI updates.
• Improves performance by grouping several changes and sending a single notification.

Disadvantages:

• Requires careful handling: forgetting to call send will result in the UI not updating, leading to data and display desynchronization.
• Increases code complexity, as the responsibility for notifications falls on the developer.

Overall, objectWillChange.send is useful when automatic mechanisms are insufficient, but it requires discipline in its use.