[Solved] What is the purpose of using a where clause in a for-in loop in Swift? — Ans: To filter elements during iteration based on a condition | Swift

Swift - Loops

What is the purpose of using a where clause in a for-in loop in Swift?

ATo filter elements during iteration based on a condition

BTo declare the loop variable type explicitly

CTo create a nested loop inside the <code>for-in</code> loop

DTo break the loop when a condition is met

Step-by-Step Solution

Solution:

Step 1: Understand the role of where in loops
The where clause filters elements so only those meeting the condition run inside the loop.
Step 2: Compare with other options
Declaring types, nesting loops, or breaking loops are not functions of where in for-in.
Final Answer:
To filter elements during iteration based on a condition -> Option A
Quick Check:
Purpose of where clause = Filter elements [OK]

Quick Trick: Use where to pick only items you want in the loop [OK]

Common Mistakes:

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What is the purpose of using a where clause in a for-in loop in Swift?