[Solved] What is the main purpose of the Observer pattern in UI updates? — Ans: To automatically update UI components when data changes | LLD

LLD - Design — Chess Game

What is the main purpose of the Observer pattern in UI updates?

ATo improve database query speed

BTo store user data securely

CTo automatically update UI components when data changes

DTo handle user authentication

Step-by-Step Solution

Solution:

Step 1: Understand the Observer pattern role
The Observer pattern connects data changes to UI updates automatically.
Step 2: Match purpose with options
Only To automatically update UI components when data changes describes automatic UI updates on data change.
Final Answer:
To automatically update UI components when data changes -> Option C
Quick Check:
Observer pattern = automatic UI update [OK]

Quick Trick: Observer pattern links data changes to UI updates [OK]

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