[Solved] What does a where clause do in a Swift switch statement? — Ans: It adds an extra condition to a case to check before matching. | Swift

Swift - Control Flow

What does a where clause do in a Swift switch statement?

AIt defines the default case in the switch statement.

BIt adds an extra condition to a case to check before matching.

CIt repeats the case multiple times automatically.

DIt changes the type of the value being switched.

Step-by-Step Solution

Solution:

Step 1: Understand the role of where clause
The where clause adds an extra condition to a case in a switch statement.
Step 2: Compare with other options
Other options describe unrelated behaviors like default case or type changes, which are not what where does.
Final Answer:
It adds an extra condition to a case to check before matching. -> Option B
Quick Check:
where clause = extra condition [OK]

Quick Trick: Remember: where adds conditions to cases [OK]

Common Mistakes:

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What does a where clause do in a Swift switch statement?