LLD - Design — Chess Game
In the Observer pattern, what role does the 'Subject' play in UI updates?
In the Observer pattern, what role does the 'Subject' play in UI updates?
easy🧠 Conceptual Q2 of Q15
Step-by-Step Solution
Solution:
Step 1: Define Subject's responsibility
The Subject holds the core data or state in the Observer pattern.Step 2: Understand notification role
When data changes, the Subject notifies all registered observers to update.Final Answer:
It holds the data and notifies observers on changes -> Option CQuick Check:
Subject role = Data holder and notifier [OK]
Quick Trick: Subject notifies observers when data changes [OK]
Common Mistakes:
MISTAKES- Thinking Subject renders UI
- Confusing Subject with event manager
- Assuming Subject stores UI components
Master "Design — Chess Game" in LLD
Want More Practice?
15+ quiz questions · All difficulty levels · Free
Free Signup - Practice All QuestionsMore LLD Quizzes