Swift - Control Flow
What will be printed by this Swift code?
let number = 15
switch number {
case let x where x % 3 == 0:
print("Divisible by 3")
case let x where x % 5 == 0:
print("Divisible by 5")
default:
print("Other")
}What will be printed by this Swift code?
medium📝 Predict Output Q4 of 15
Step-by-Step Solution
Solution:
Step 1: Evaluate the value against cases
Number is 15. Check first case: 15 % 3 == 0 is true, so this case matches.Step 2: Understand switch behavior
Switch executes the first matching case and stops. So it prints "Divisible by 3" and does not check further cases.Final Answer:
Divisible by 3 -> Option BQuick Check:
First matching where case runs = Divisible by 3 [OK]
Quick Trick: Switch stops at first matching where case [OK]
Common Mistakes:
- Thinking both cases run
- Ignoring order of cases
- Assuming default runs if multiple matches
Master "Control Flow" in Swift
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