How can you combine ObservableObject with Combine framework to perform an action whenever a published property changes?

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iOS Swift - State Management in SwiftUI

How can you combine ObservableObject with Combine framework to perform an action whenever a published property changes?

ASubscribe to the <code>objectWillChange</code> publisher inside the ObservableObject.

BOverride the <code>didSet</code> of the property without @Published.

CUse a delegate pattern instead of ObservableObject.

DCall the action manually from the view.

Step-by-Step Solution

Solution:

Step 1: Understand objectWillChange publisher
ObservableObject provides objectWillChange publisher that emits before any @Published property changes.
Step 2: Subscribe to objectWillChange to react on changes
You can attach Combine subscribers to perform actions when changes occur.
Final Answer:
Subscribe to the objectWillChange publisher inside the ObservableObject. -> Option A
Quick Check:
Use objectWillChange publisher to react on property changes [OK]

Quick Trick: Use objectWillChange publisher to trigger actions on changes [OK]

Common Mistakes:

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