Swift - Loops
What will be printed by this Swift code?
let numbers = [2, 4, 6]
var sum = 0
for num in numbers {
sum += num
}
print(sum)What will be printed by this Swift code?
medium📝 Predict Output Q4 of 15
Step-by-Step Solution
Solution:
Step 1: Understand the loop operation
The loop adds each number in the array to the sum variable.Step 2: Calculate the sum
2 + 4 + 6 = 12, so sum becomes 12.Final Answer:
12 -> Option DQuick Check:
Sum of array elements = 12 [OK]
Quick Trick: Add each item inside the loop to sum [OK]
Common Mistakes:
- Multiplying instead of adding
- Printing sum before loop
- Syntax errors in loop
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