[Solved] What is the main purpose of a protocol in Swift? — Ans: To define a blueprint of methods and properties that a type must implement | iOS Swift

iOS Swift - Swift Language Essentials

What is the main purpose of a protocol in Swift?

ATo create a new class with default behavior

BTo define a blueprint of methods and properties that a type must implement

CTo store data persistently on the device

DTo handle user interface layout automatically

Step-by-Step Solution

Solution:

Step 1: Understand what a protocol defines
A protocol specifies methods and properties that a type must implement, acting as a blueprint.
Step 2: Differentiate from other concepts
Protocols do not create classes or store data; they only define requirements.
Final Answer:
To define a blueprint of methods and properties that a type must implement -> Option B
Quick Check:
Protocol purpose = blueprint [OK]

Quick Trick: Protocols define required methods and properties [OK]

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What is the main purpose of a protocol in Swift?